Lancaster Authoritative Data & Maps
The Lancaster GIS Department maintains a wide variety of GIS data where the City is the authoritative source. This includes above and under ground assets, planning and zoning layers, and data derived from sources not geographic in nature. Publicly accessible maps and data downloads can be found here. Data is regularly being curated to add more content. If you need access to city utility data, please contact the GIS Department, who will assess your request and get you the appropriate data.
Other Useful Data Sources
For access to the Fairfield County data please go to the Fairfield County GIS Data Download page, this includes data like parcel boundaries, address points, and road centerlines.
Statewide ortho imagery can be found on the Ohio Geographically Referenced Information Program website.