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Foundational physical and legal characteristics of land parcels and buildings across the US.
Ohio uses a mortgage lien theory. County auditors and recorders maintain property records. The state has a real property conveyance fee. Columbus, Cleveland, and Cincinnati are the primary markets.
20 sources available
Comprehensive property data API covering 158M+ properties.
ATTOM's Property Data API provides access to real estate datasets for over 158 million U.S. properties. It offers data on ownership, valuations, mortgage, demographics, and market trends.
Aggregated property tax assessment data from 3,000+ counties.
Real-time tax assessor data for 155M+ US properties including assessments, valuations, and ownership records via API.
Geographic boundaries and features for all US census geography.
Enterprise property data API with comprehensive coverage.
Cotality provides real estate property data and analytics, offering insights into the property ecosystem. It harmonizes technology, data, and expertise to deliver a rich view of property information.
Official property tax assessment records from county assessor offices nationwide.
Property tax data integrated with title and ownership data.
Coastal elevation, bathymetry, and topographic data for US coastal areas via bulk download.
RESO-compliant real estate data including MLS, assessor, and deed data.
RealEstateAPI provides access to property records, MLS listings, and historical sales data. It offers advanced search capabilities and tools for portfolio management.
Regrid provides parcel data with boundaries, buildings, addresses, and geographic enrichments. It unifies fragmented property records into a nationwide and globally expanding dataset.
Standardized parcel boundaries for 155M+ parcels nationwide.
Rental market data and automated valuations.
Parcel data covering over 99% of U.S. properties, updated daily, accessible via API, bulk download, and web platform.
Real-time US address autocomplete returning only verified USPS addresses with fuzzy matching and state/ZIP filtering.
Extract and verify US addresses embedded in unstructured text, HTML, or documents via a single API call.
Address enrichment API delivering 350+ property data points — structure, location, and financial attributes — for 210M+ US addresses.
Elevation, hydrography, transportation, boundary, and parcel data for the US via API and bulk download.