Boundary Atlas

ZIP code 66091: Welda, KS

ZIP code 66091 is in Welda (42% of residents) and Mont Ida (6.4%), in Anderson County, Kansas. 52% 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 district is State House District 9.

358residents (2020 Census)
60.4 sq miland area
2cities and towns
1congressional district
5voting precincts

See it on the mapAll of Kansas

City and county

City or townShare of ZIP residents
Welda42%
Mont Ida6.4%

CountyShare of ZIP residents
Anderson County100%

Town or county subdivisionShare of ZIP residents
Welda township75%
Washington township15%
Ozark township5.9%
Westphalia township3.9%
Lone Elm township0.8%

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 9100%

Voting precincts

5 voting precincts overlap ZIP 66091. 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:66091")

ZIP 66091 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.