Allegheny County Block Areas

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 starting with #1 at the point in downtown Pittsburgh. Each tile contains 16 Blocks. Each Index Sheet contains 16 lot/block sheets, labeled from left to right, top to bottom (4 across, 4 down): A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S. The first (4) numeric characters in a parcelID indicate the Index sheet in which the parcel can be found, the alpha character identifies the block in which most (or all) of the property lies.

Data and Resources

Additional Info

Field Value
Public Access Level Comment
Temporal Coverage 2002
Geographic Unit
Data Notes

Coordinate System: Pennsylvania State Plane South Zone 3702; U.S. Survey Foot Data Dictionary:

Related Document(s)
Frequency - Data Change
Frequency - Publishing Not Updated (Historical Only)
Data Steward Eli Thomas
Data Steward Email Eli Thomas