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County
Allegheny County Tax Liens (Filings, Satisfactions, and Current Status)
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Tax liens are a method the government uses to secure an interest in unpaid tax debt. This dataset represents information about county, municipal, school district,... -
County
Allegheny County Crash Data
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Contains locations and information about every crash incident reported to the police in Allegheny County from 2004 to 2020. Fields include injury severity,... -
State
MTA General Transit Feed Specification (GTFS) Static Data
State of New York —
This data contains schedules and associated data for NYCT Subway, NYCT Bus, MTA Bus, LIRR, and Metro-North in GTFS Static format: --Station / bus stop locations... -
County
Allegheny County Property Assessments
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Real Property parcel characteristics for Allegheny County, PA. Includes information pertaining to land, values, sales, abatements, and building characteristics (if... -
City
NYC Stormwater Flood Maps
City of New York —
A collection of citywide Geographic Information System (GIS) layers that show areas of potential flooding scenarios under varying sea level rise conditions. Please... -
County
Active Business Licenses
Arlington County, VA —
All businesses operating in Arlington must be licensed and renewed annually. This dataset includes all active business licenses, excluding in-home businesses for... -
City
National Register of Historic Places - KML
City of Chicago —
This dataset includes buildings and districts in Chicago which are listed on the National Register of Historic Places (NRHP) or designated as National Historic... -
City
Digital City Map – Geodatabase
City of New York —
The Digital City Map (DCM) data represents street lines and other features shown on the City Map, which is the official street map of the City of New York. The City... -
County
Allegheny County Zip Code Boundaries
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
This dataset demarcates the zip code boundaries that lie within Allegheny County.If viewing this description on the Western Pennsylvania Regional Data Center’s open... -
City
Historic Zoning Maps
City of San Francisco —
A. SUMMARY Scanned Zoning Maps from 1921, 1929, 1935, 1960, 1964, 1968, 1972, 1975, 1980, 1990, 1996, 2000 B. HOW THE DATASET IS CREATED These PDFs were created by... -
City
Department of Finance Digital Tax Map
City of New York —
**ATTENTION USERS - This downloadable file will be retired by October 2025 ** The Digital Tax Map has been republished on Open Data as a growing collection of its... -
City
NYCCAS Air Pollution Rasters
City of New York —
Citywide raster files of annual average predicted surface for nitrogen dioxide (NO2), fine particulate matter (PM2.5), black carbon (BC), and nitric oxide (NO);... -
City
Georeferenced NYC Zoning Maps
City of New York —
The Georeferenced NYC Zoning Maps raster dataset is intended to be a spatial representation of the entire zoning map catalog for the City of New York as one seamless... -
City
National Register of Historic Places
City of Chicago —
This dataset includes buildings and districts in Chicago which are listed on the National Register of Historic Places (NRHP) or designated as National Historic... -
City
Chicago Historic Resources Survey - Red and Orange Buildings
City of Chicago —
The Chicago Historic Resources Survey (CHRS), completed in 1995, was a decade-long research effort by the City of Chicago to analyze the historic and architectural... -
County
Allegheny County Map Index Grid
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Map Index Sheets from Block and Lot Grid of Property Assessment and based on aerial photography, showing 1983 datum with solid line and NAD 27 with 5 second grid... -
City
2002 Orthoimagery Queens
City of New York —
The Department of Information Technology and Telecommunications, GIS Unit, is providing the raw orthoimagery for download. This orthoimagery is used to create the... -
County
Assessment
Arlington County, VA —
Historical assessment information for all Arlington properties, identified by an RPC (Real Property Code). Associate with Property table to obtain address.