Allegheny County land use as ascribed to areas of land. The Land Use Feature Dataset contains photogrammetrically compiled information concerning vegetation and limited open areas of ground. The Land Use Feature Dataset contains Woodlands, Nurseries and Orchards, Cultivated Fields and Athletic Fields. Woodlands are...

This dataset shows the bridges owned by Allegheny County. Department: Public Works

This dataset contains the locations of municipal facilities in Allegheny County.

The Land Cover dataset demarcates 14 land cover types by area; such as Residential, Commercial, Industrial, Forest, Agriculture, etc. If viewing this description on the Western Pennsylvania Regional Data Center’s open data portal (http://www.wprdc.org), this dataset is harvested on a weekly basis from Allegheny...

This dataset was previously obtained and regularly updated from this URL on the Allegheny County's GIS server. We've switched to mirroring a new cemeteries dataset on the same server. Description of previous version of this dataset: "Outlines of public and private cemeteries greater than one acre in size. Areas were...

This dataset shows the roads owned by Allegheny County. If viewing this description on the Western Pennsylvania Regional Data Center’s open data portal (http://www.wprdc.org), this dataset is harvested on a weekly basis from Allegheny County’s GIS data portal (http://openac.alcogis.opendata.arcgis.com/). The full...

This dataset contains boundaries of individual parcels in Allegheny County, including the county block and lot number. As this is a very large dataset, you may wish to use our property information extractor (http://tools.wprdc.org/parcels-n-at/) to download filtered versions of this parcel dataset. The most...

The 1967 zoning map, dated 12/28/1967, is one of the surviving zoning maps that capture amendments to the map after the 1958 Zoning Ordinance was adopted. High level changes between 1958 and 1967 are adjustments to zoning district boundaries to support urban renewal projects and adjustments to the locations of the...

This map provides a snapshot of urban renewal and other major development projects in Pittsburgh. It was originally published as part of the 1970 report "A Development and Renewal Program for Pittsburgh Summary Documentation," available from the Pittsburgh City Archives. The map shows three types of areas: (1) urban...

This map is more fully known as the City of Pittsburgh Zoning Map adopted July 1923 and amended through August 1927. In 1926, Pittsburgh adopted its first exclusively single-family zoning district. The 1927 zoning map is the earliest existing map after this amendment. From 1923-1958, Pittsburgh mapped uses, area,...

The 1958 Zoning Map and Text was the first completely rewritten/remapped zoning ordinance for Pittsburgh since it first adopted zoning in 1923. It is the first ordinance to combine use, area, and height regulations into a single layer of zoning districts. This ordinance remains the foundation of the current (2025)...

This dataset was previously obtained and regularly updated from this URL on Allegheny County's GIS server. It is no longer a listed dataset, so we have stopped updating it. This dataset shows the location of bridges owned by Allegheny County as centroids.

Most of the text in this description originally appeared on the Mapping Inequality Website. Robert K. Nelson, LaDale Winling, Richard Marciano, Nathan Connolly, et al., “Mapping Inequality,” American Panorama, ed. Robert K. Nelson and Edward L. Ayers, "HOLC staff members, using data and evaluations organized by...

In 2021, Allegheny County Economic Development (ACED), in partnership with Urban Redevelopment Authority of Pittsburgh(URA), completed the a Market Value Analysis (MVA) for Allegheny County. This analysis services as both an update to previous MVA’s commissioned separately by ACED and the URA and combines the MVA...

This dataset overlays a grid on the County to assist in locating a parcel. The grid squares are 3,500 by 4,500 square feet. The data was derived from original MAPINDX: Map Index Sheets from Block and Lot Grid of Property Assessment and based on aerial photography. Tiles are numbered in a clockwise spiral fashion...