Lancaster County data sets originated and are maintained by the IT/GIS, Planning, Property Assessment, and Lancaster County-Wide Communications departments of Lancaster County. The county distributes both vector and raster data sets to the public. Vector layers are generally provided in ESRI shapefile or DXF file formats. Raster data sets are provided in geospatially referenced TIFF or JPG formats.
Data layers were created from aerial photography (scale varies depending on layer). These data are intended for use at a 1:2,400 or smaller scale and conform to National Mapping Accuracy Standards of planimetric and topographic mapping data at a design scale of 1 inch equals 200 feet.
Spatial Reference Information
Projection: Lambert Conformal Conic
Coordinate system: State Plane, Zone 3702
Horizontal Datum: North American Datum 1983
Vertical Datum: NAVD 1988
Below is data made available in shapefile format on pre-made CDs. The hyperlinks contain available metadata. To make a data request, please see our Request Form page. If the data you are looking for is not listed below, please contact the GIS office at 717-391-7550.
CD1 / CD2
CD3 (Parcel Viewer)
CD4 - No longer available
CD5 - No longer available
| The following links will redirect to the respective layer's PASDA data download page:
CD6 - Countywide CD
Notice - Parcel Viewer Data and Third Party Applications
The GIS Data on the Parcel Viewer CD no longer works with the Parcel Locator GIS application developed for the Lancaster County Association of Realtors. Parcel Locator was not developed by the county and is no longer supported by the developer. Based on the status of Parcel Locator, we will not be able to provide Parcel Viewer data in a format that supports Parcel Locator. Parcel Viewer does, however, include a GIS data viewing application which can be used to view and query the data on that CD.