Boundary Atlas

ZIP code 66064: Osawatomie, KS

ZIP code 66064 is in Osawatomie (72% of residents), in Miami County (99%) and Franklin County (0.8%), Kansas. 28% of its residents live outside city limits. It is in Kansas's 3rd congressional district. Its state senate district is State Senate District 12; its state house districts are State House District 5 (53%), State House District 6 (37%), State House District 9 (9.0%) and State House District 59 (0.8%).

5,783residents (2020 Census)
73.8 sq miland area
1cities and towns
1congressional district
19voting precincts

See it on the mapAll of Kansas

City and county

City or townShare of ZIP residents
Osawatomie72%

CountyShare of ZIP residents
Miami County99%
Franklin County0.8%

Town or county subdivisionShare of ZIP residents
Osawatomie city72%
Osawatomie township13%
Mound township7.1%
Valley township3.9%
Stanton township2.5%
Cutler township0.8%
Osage township0.3%

Congressional district

Congressional districtShare of ZIP residents
Kansas's 3rd congressional district (KS-03)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 12100%

State house districtShare of ZIP residents
State House District 553%
State House District 637%
State House District 99.0%
State House District 590.8%

Voting precincts

19 voting precincts overlap ZIP 66064. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:66064")

ZIP 66064 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.