Below is an interactive choropleth map showing the respective distribution of registered Democrats and Republicans among Pima County’s 249 voting precincts.1 If you hover your cursor over any location on the map should display voter registration totals for that location’s precinct. Voter registration data for this map was obtained today from the “voter statistics” section of the Pima County Recorder’s website.


1. It might be argued that Pima County has not 249, but 248 voting precincts. As a cartographic matter, it certainly has 249. Precinct 27, however, encompasses an area within the Pusch Ridge Wilderness that presently contains no street addresses, and thus, no registered voters. As such, it does not appear in the Pima County Recorder’s voter statistics. Nevertheless, it is a numbered precinct with a defined geography.