Geospatial Technology

There are based on either a conic or transverse Mercator projection.  Each state has at least one state plane and their are 110 state planes in the contiguous United States. There are a total of 124 state planes for the entire country.  For a general discussion see: https://en.wikipedia.org/wiki/State_Plane_Coordinate_System

 

Information about the Kentucky State Plane: ftp://kygeonet.ky.gov/kygeodata/standards/Ky_StatePlane.pdf.  Kentucky in general uses a single zoon state plane, while there are north and south zones.