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Data Source Library

Explore assessor, GIS, tax, recorder, image, and bulk-download resources used by Assessorly data collection.

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16States
155Counties / Areas
1189Resource Links

Resource results

Showing all 1189 links across 155 areas in 16 states.

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PROPERTY DATA · RESEARCH SNAPSHOT OCTOBER 14, 2026

Parcel & assessment source research

Official-source research and leads for the information needed to assess a property. Each record preserves its scope, observed fields and unresolved gaps. A source being listed does not mean every property has data or that reuse terms have been cleared.

12 of 242 matching source records shown.

CO · Colorado public parcel compilation; 44 represented countiesState of Colorado Governor's Office of Information Technology GIS Teampartial

Research status: Current official polygon service and 44 county groups verified; statewide completeness not established.

Source observed 2026-10-15. Availability and values can change.

Information reviewed

Geometry
Official parcel polygons in WGS84; MapServer renders the source overlay. FeatureServer supports GeoJSON and ordered pagination with a 2,000-row server limit.
Parcel identity
Preserve countyName, raw countyFips, parcel_id and account. County codes include padded and unpadded strings; retain raw values and scope every match to Colorado and county.
Situs address
Schema distinguishes situsAdd/sitAddCty/sitAddZip from owner mailing fields; population and same-county joins remain unverified.
Land size
Direct schema fields landSqft and landAcres describe parcel land area; building area is not a substitute.
Assessment
apprValTot and asedValTot are published schema fields; source year, component meaning and populated coverage require validation.
Latest sale
saleDate and salePrice describe the latest sale; no qualified-sale or historical-sales coverage is established.

Scope & remaining checks

  • The distinct county query returned 44 groups on the observation date. It does not establish all 64 counties, unique parcels, imported coverage or AVM readiness.
  • OIT aggregates county/local submissions annually; dateReceived is the received date, not a guarantee of current county records.
  • The service allows commercial use with attribution and prohibits resale. Its specific terms must be retained despite the catalog's generic license label.
  • The state preserves supplied county attribution; record corrections belong with the originating county authority.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

CO · State-hosted valuation parcel layer; county and non-null coverage unverifiedState of Colorado GISpartial

Research status: Official schema rechecked; original historical source observation retained separately.

Source observed 2026-10-15. Availability and values can change.

Information reviewed

Parcel identity
Published parcel_id/account/countyName/countyFips keys need exact county-scoped identity reconciliation.
Assessment history
Schema exposes parcels2023_a2022ActVal/parcels2023_a2022AsValue, parcels2023_a2023ActVal/parcels2023_a2023AsVal, a2024ActVal/a2024AsVal and a2025ActVal/a2025AsVal.
Assessment
Explicit year-named values are string fields. Schema availability does not establish populated amounts, component totals or tax-bill meaning.

Scope & remaining checks

  • Metadata review only; no fresh county inventory, value sample or imported-row verification for this layer.
  • A source capture is separate from normalized tax-component materialization and report eligibility; no bills, payments or actual tax rates proved here.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

CO · Boulder CountyBoulder County Assessorpartial

Research status: Current official download catalog and field manual verified; complete files and imported coverage not re-audited.

Source observed 2026-10-15. Availability and values can change.

Information reviewed

Parcel identity
Account_Parcels links strap accounts to 12-character text folio/PARCELNO. Preserve one-to-many accounts and buildings.
Geometry
The assessor download page links the county's parcel polygon catalog; relate polygons through PARCELNO without collapsing accounts.
Buildings
Buildings documents bld_num, section_num, builtYear and effective-year fields; multiple uses may produce multiple rows.
Construction status
Buildings.CompCode is the current-year completion fraction: 1 means complete and 0.75 means 75 percent, not a dollar value.
Land size
Land documents original units plus GIS_sqft/GIS_acreage. Preserve units and distinguish GIS-derived area from surveyed land.
Sales history
Sales includes recorded ownership documents, including non-sales; preserve deedNum/Tdate/price/sales_cd and qualification meaning.
Assessment
The daily catalog publishes Values separately from land, building, sales and tax-authority tables; field/year validation remains necessary.
Taxes & rates
Tax_Areas and Tax_Authorities provide levy relationships; those rates do not prove a paid tax bill.
Neighborhoods
Owner_Address.Nh is the appraisal neighborhood number, not proof of a neighborhood polygon.

Scope & remaining checks

  • Catalog availability and documented semantics only; no county-wide non-null, join, history-window or unique-property completeness claim.
  • Downloads refresh daily at 4 a.m.; the current catalog does not establish when Assessorly last imported them.
  • This research observation neither applies nor verifies the four pending Boulder corrections.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Shawnee CountyShawnee County Appraiser GISverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 77,008. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["PIN", "PID"]; account_key: ["QUICKREFID"]
Situs address
situs: ["PADDRESS", "PADDRESS2"]
Land size
land_area: ["ACRES"]
Assessment
land_value: ["LDVAL"]; building_value: ["BLDGVAL"]; total_value: ["TOTVAL"]
Neighborhoods
neighborhood: ["NBHD"]
Parcel identity
Source identifiers: ["PIN", "PID"]
Geometry
Assessment fields embedded in polygon rows; cardinality/duplicate keys not yet validated.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other 104 counties not covered by this source
  • After reuse authorization, checkpoint OBJECTID ordered pages no larger than server limit, reproject geometry, preserve county keys/source unit records, then audit distinct keys and coverage. No import run.
  • County page directs countywide requests to GIS office for availability/pricing; no anonymous bulk file verified.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Sedgwick CountySedgwick County GISverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 241,705. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["PIN"]; account_key: ["AIN", "GEOCODE"]; unit_identity: ["MultUnitTP", "MultBldgNO", "MultUnitNO", "UnitLevel", "UnitStatus"]
Land size
land_area: ["ParcSqFTC", "ParcAcresC"]
Parcel identity
Source identifiers: ["PIN"]
Geometry
Polygon/condo-unit records; no assessment table in layer. PIN/AIN/GEOCODE join needs verification; multiple units must not be collapsed blindly.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other 104 counties not covered by this source
  • After reuse authorization, checkpoint OBJECTID ordered pages no larger than server limit, reproject geometry, preserve county keys/source unit records, then audit distinct keys and coverage. No import run.
  • Official GIS data-layers page advertises shapefile/file geodatabase; exact parcel bulk-file not verified.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Elk CountyElk County / Kansas DASC / KDOR PVDverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 4,379. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["KSPID"]; account_key: ["PROPERTYID", "QUICKREFID"]
Situs address
situs: ["PROPERTYADDRESS"]
Land size
land_area: ["ACRES"]
Assessment
land_value: ["FINALLAND"]; building_value: ["FINALBUILDING"]; total_value: ["FINALTOTAL"]; assessment_year: ["TAXYR1"]
Parcel identity
Source identifiers: ["KSPID"]
Geometry
Assessment fields embedded in polygon rows; cardinality/duplicate keys not yet validated.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other 104 counties not covered by this source
  • After reuse authorization, checkpoint OBJECTID ordered pages no larger than server limit, reproject geometry, preserve county keys/source unit records, then audit distinct keys and coverage. No import run.
  • ORKA portal requests shapefile/file geodatabase with county approval.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Comanche CountyComanche County / Kansas DASC / KDOR PVDverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 3,559. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["KSPID"]; account_key: ["PROPERTYID", "QUICKREFID"]
Situs address
situs: ["PROPERTYADDRESS"]
Land size
land_area: ["ACRES"]
Assessment
land_value: ["FINALLAND"]; building_value: ["FINALBUILDING"]; total_value: ["FINALTOTAL"]; assessment_year: ["TAXYR1"]
Parcel identity
Source identifiers: ["KSPID"]
Geometry
Assessment fields embedded in polygon rows; cardinality/duplicate keys not yet validated.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other 104 counties not covered by this source
  • After reuse authorization, checkpoint OBJECTID ordered pages no larger than server limit, reproject geometry, preserve county keys/source unit records, then audit distinct keys and coverage. No import run.
  • ORKA portal requests shapefile/file geodatabase with county approval.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Butler CountyButler County GISverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 35,033. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["PID", "PID_ORION"]; account_key: ["QuickRefID"]
Situs address
situs: ["Situs_No", "Situs_Dir", "Situs_St", "Situs_Type", "Situs_Sfx", "Situs_City", "Situs_Zip"]
Land size
land_area: ["ACRES", "Acres_1"]
Parcel identity
Source identifiers: ["PID", "PID_ORION"]
Geometry
Fields embedded in polygon rows. Multiple condo/building units and duplicate/account joins must be audited. No one-to-one guarantee.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other104 counties
  • Use stable-snapshot FID keyset pages (WHERE FID > checkpoint ORDER BY FID) or bounded object-ID batches; offset pagination is unsupported/ignored. Preserve source keys and audit condos/sentinels.
  • No separate bulk file verified.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Ford CountyFord County GISverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 32,689. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["ParcelID"]; account_key: ["QuickRefID"]
Situs address
situs: ["siteaddres", "PROP_CITY", "PROP_ZIP"]
Land size
land_area: ["Acres"]
Parcel identity
Source identifiers: ["ParcelID"]
Geometry
Fields embedded in polygon rows. Multiple condo/building units and duplicate/account joins must be audited. No one-to-one guarantee.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other104 counties
  • After reuse review, checkpoint OBJECTID/FID ordered pages within server limit; preserve county and source keys, audit key sentinels/duplicates/condos and source field units.
  • No separate bulk file verified.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Finney CountyFinney County GIS / Appraiserverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 15,915. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["ParcelID", "PID"]; account_key: ["QuickRefID"]
Situs address
situs: ["SitusAddress"]
Land size
land_area: ["ACRES"]
Assessment
land_value: ["FinalLand"]; building_value: ["FinalBuilding"]; total_value: ["FinalTotal"]
Neighborhoods
neighborhood: ["NeighborhoodCode"]
Parcel identity
Source identifiers: ["ParcelID", "PID"]
Geometry
Fields embedded in polygon rows. Multiple condo/building units and duplicate/account joins must be audited. No one-to-one guarantee.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other104 counties
  • After reuse review, checkpoint OBJECTID/FID ordered pages within server limit; preserve county and source keys, audit key sentinels/duplicates/condos and source field units.
  • No separate bulk file verified.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

KS · Franklin CountyFranklin County GIS / Appraiserverified candidate

Research status: verified candidate

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 15,425. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_key: ["PARCEL_CAM"]; account_key: ["QuickRefID"]
Situs address
situs: ["SitusAddress"]
Parcel identity
Source identifiers: ["PARCEL_CAM"]
Geometry
Fields embedded in polygon rows. Multiple condo/building units and duplicate/account joins must be audited. No one-to-one guarantee.

Scope & remaining checks

  • Scope: county
  • Coverage gaps: Other104 counties
  • After reuse review, checkpoint OBJECTID/FID ordered pages within server limit; preserve county and source keys, audit key sentinels/duplicates/condos and source field units.
  • No separate bulk file verified.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

ME · Participating organized municipalities; coverage matrix enumerates every official town-point jurisdiction plus source-only codesMaine GeoLibrary / MaineIT GIS; contributing municipal assessorspartial

Research status: partial

Source observed 2026-10-14. Availability and values can change.

Observed source rows: 708,382. Published source rows; not a verified unique-parcel count

Information reviewed

Parcel identity
parcel_id: STATE_ID; local_map_lot: MAP_BK_LOT
Situs address
situs: PROP_LOC,PROPLOCNUM
Parcel identity
Source identifiers: {"parcel_id": "STATE_ID", "local_map_lot": "MAP_BK_LOT", "jurisdiction": "GEOCODE,TOWN,COUNTY", "parent": "PARENT"}
Geometry
STATE_ID relationship metadata declares one-to-one, but live grouped queries disprove uniqueness. Ogunquit STATE_ID 31197_24 has 1,743 assessment rows (TIMESHARE) and three polygon records in bounded query. Join requires explicit many-to-many safeguards; never flatten with a Cartesian join.

Scope & remaining checks

  • Scope: partial statewide municipal compilation
  • Coverage gaps: See maine-coverage.csv; live presence establishes participation only, not complete town coverage
  • Snapshot per municipality using ordered OBJECTID pages <=2000 with durable cursor; preserve source identifiers and raw metadata. Join table 9 on STATE_ID without dropping unmatched geometry or assessment records.
  • Hosted service advertises csv, shapefile, sqlite, geoPackage, filegdb, featureCollection, geojson, kml, excel exports; Extract and Sync capabilities. No full export executed during discovery.

Before marking this source complete: confirm official attribution, permitted access/reuse, required jurisdictions and years, field meaning and non-null coverage, parcel/account joins, and a reproducible sample validation. Missing categories remain unresolved.

Exemptions, military benefits and grants

Program links and official state and federal references behind the Exemption Finder. Selected veteran tax-relief programs cover all 50 states and DC. Military relief organizations are labeled separately. County, city, district, tribal and utility program inventories are incomplete. An unlisted program may still be available.

Nationwide military, grants and assistance · 18 program links

Program referrals do not confirm eligibility or funding and do not add to valuation savings. Administrators confirm local requirements. Education grants cover study costs.

  • VA Specially Adapted Housing (SAH) grant
    GrantHousehold assistanceGovernment program

    For qualifying service-connected disabilities and a permanent home you own or will own. VA confirms the disability criteria and proposed project.

    U.S. Department of Veterans Affairs · source checked 2026-10-10

  • VA Special Housing Adaptation (SHA) grant
    GrantHousehold assistanceGovernment program

    Adaptations for specific qualifying service-connected disabilities. VA reviews the disability and home ownership requirements.

    U.S. Department of Veterans Affairs · source checked 2026-10-10

  • VA Temporary Residence Adaptation (TRA) grant
    GrantHousehold assistanceGovernment program

    Adapt a family member's home where you live temporarily. You must qualify for SAH or SHA; owning that home is not required.

    U.S. Department of Veterans Affairs · source checked 2026-10-10

  • VA Home Improvements and Structural Alterations (HISA)
    GrantHousehold assistanceGovernment program

    Medically necessary accessibility alterations, including some non-service-connected disability routes. Requires VA medical justification; ordinary home maintenance is excluded. Renters need owner permission.

    VA Prosthetic and Sensory Aids Service · source checked 2026-10-10

  • Army Emergency Relief
    GrantHousehold assistanceNonprofit administrator

    Case-by-case help can include housing, utilities and home repairs for eligible Soldiers, retirees, activated Reserve/Guard members and families. Ask specifically about grant assistance; the organization also offers repayable loans, which are outside this directory.

    Army Emergency Relief · source checked 2026-10-10

  • Navy-Marine Corps Relief Society financial assistance
    GrantHousehold assistanceNonprofit administrator

    Grant assistance for eligible Sailors, Marines and families facing financial hardship. The Society also offers loans; ask about the grant route and covered expenses.

    Navy-Marine Corps Relief Society · source checked 2026-10-10

  • Air & Space Forces Aid Society financial assistance
    GrantHousehold assistanceNonprofit administrator

    Emergency financial support for eligible Air Force and Space Force families. Ask about grant assistance. The Society also offers loans and determines the form of support; grant funding is not guaranteed.

    Air & Space Forces Aid Society · source checked 2026-10-10

  • Coast Guard Mutual Assistance disaster and emergency aid
    GrantHousehold assistanceNonprofit administrator

    Disaster grants for eligible Coast Guard community members. Home-repair grants require residence, loss and insurance documentation. The organization also offers loans; confirm a grant award before accepting assistance.

    Coast Guard Mutual Assistance · source checked 2026-10-10

  • VFW Financial Assistance for Service Members
    GrantHousehold assistanceNonprofit administrator

    Grants for qualifying active-duty members, including activated Guard/Reserve, and families with service-related financial hardship. Payments go to creditors. This is not a general grant for all veterans.

    Veterans of Foreign Wars · source checked 2026-10-10

  • Operation Homefront Critical Financial Assistance
    Assistance or servicesHousehold assistanceNonprofit administrator

    Housing, utility and limited home-repair help depends on the wounded/injured or deployed service-member route. General active-duty eligibility covers fewer expense types; check the current criteria.

    Operation Homefront · source checked 2026-10-10

  • Supportive Services for Veteran Families (SSVF)
    Assistance or servicesHousehold assistanceGovernment program

    Housing stability and short-term rental support through funded local providers for eligible low-income veteran families. Veterans seek help from providers; the federal grants are awarded to organizations.

    U.S. Department of Veterans Affairs / local SSVF providers · source checked 2026-10-10

  • HUD-VA Supportive Housing (HUD-VASH)
    Assistance or servicesHousehold assistanceGovernment program

    Long-term rental assistance with VA case management for eligible veterans experiencing homelessness. Contact local VA housing staff for assessment and availability.

    HUD / U.S. Department of Veterans Affairs · source checked 2026-10-10

  • USDA Section 504 home-repair grant
    GrantHousehold assistanceGovernment program

    Health and safety repairs for eligible very-low-income rural homeowners age 62 or older who cannot obtain affordable credit elsewhere. Local USDA confirms income, rural eligibility, funding and repayment conditions if the home is sold.

    USDA Rural Development · source checked 2026-10-10

  • USDA Housing Preservation Grants
    GrantOrganizations applyGovernment program

    Government, nonprofit and tribal sponsors apply to repair qualifying rural housing. Individual homeowners cannot apply for this federal grant directly; ask USDA about funded local recipients. Confirm the current funding notice.

    USDA Rural Development · source checked 2026-10-10

  • Weatherization Assistance Program
    Assistance or servicesHousehold assistanceGovernment program

    Energy-efficiency work through state and local providers for qualifying households, including renter routes. It is a service rather than a cash grant; local eligibility, permission and waiting lists apply.

    U.S. Department of Energy / state and local providers · source checked 2026-10-10

  • Low Income Home Energy Assistance Program (LIHEAP)
    Assistance or servicesHousehold assistanceGovernment program

    Help with qualifying household energy costs through your state or tribal office. Income rules, seasons and crisis assistance vary; contact the local administering office.

    HHS Administration for Children and Families / state and tribal offices · source checked 2026-10-10

  • Home Energy Rebates
    RebateHousehold assistanceGovernment program

    Rebates are administered locally. Check your state, territory or Tribe's launch status, eligible projects and approval process before buying equipment or starting work. No rebate amount or enrollment is guaranteed here.

    U.S. Department of Energy / state, territory and tribal administrators · source checked 2026-10-10

  • Environmental Quality Incentives Program (EQIP)
    Assistance or servicesProducers applyGovernment program

    Conservation technical and financial assistance for eligible agricultural producers and forest owners under approved contracts. Ask the local NRCS office about eligibility, ranking periods and payment terms; this is not a general homeowner cash grant.

    USDA Natural Resources Conservation Service · source checked 2026-10-10

Choose a state to also see its tax-relief and local agency references.