Polk GIS Mapping Site (map.polkpa.org)

Understanding Basemaps

A basemap provides a background, or visual context for the data in a map. For example, a basemap showing streets can provide context for address data.  The PCPA Interactive Map provides several different basemaps for your use.  The Parcel Map is the default basemap, but you can change the basemap at any time to one of the other maps provided.  The remaining basemaps have been created to show image data from various years.

Changing Basemaps

Use the Change Basemap (Basemap Icon) icon on the map toolbar to select the base map with which you would like to interact.  By default, the PCPA Interactive Map opens to the Parcel Map.  You can switch to any available basemap by selecting it.  

PC or Tablet

Mobile Phone

PC or Table Basemap Menu

Mobile Basemap Menu

Each basemap has the following reference layers that can be turned off and on by checking or un-checking the box next to the layer name. 

Conservation Easements

Layer showing conservation "restrictions" determined by agreement between a landowner and a land trust or government agency that permanently limits use of the land in order to protect its conservation values.


Layer that identifies platted (recorded) land that has been divided from a larger area.


This layer shows the Public Land Survey System which is a method of subdividing and describing land in the United States.  Turn on this layer to view Section, Township, and Range information on the map.

E911 Site Point Addresses

This layer shows the Polk County Emergency Management 911 Addressing Site Point Data. For additional information or to report errors please call 863-534-5633.

Parcel Overlay

This layer is displayed when one of the aerial basemaps is selected.