Districts and boundaries

The districts our races are voted in, with what it takes to find the right ones for any address: standard Census codes where the Census publishes the district, and boundary maps we have built for the ones it doesn't, like supervisor and council districts, special districts and lines redrawn since the Census.

20,000+
districts
1,300+
with boundary maps

Upcoming elections in all 50 states and DC. Coverage by state · Technical details for developers

Districts and boundaries

What’s included

District
Name, level and type
Matching codes
Standard codes that line up with Census and other public data
Map
The district's boundary, where we have one
Dates
When the lines took effect, and when they end

Districts by level of government

  • Federal400+
  • State5,000+
  • County5,000+
  • City7,000+
  • School3,000+
  • Special district1,400+

See a sample

A few real records, as a spreadsheet you can download for free.

Download sample (CSV)