ZIP code 66040: La Cygne, KS
ZIP code 66040 is in La Cygne (30% of residents) and Linn Valley (28%), in Linn County (91%) and Miami County (9.4%), Kansas. 42% of its residents live outside city limits. It is in Kansas's 2nd congressional district (91%) and Kansas's 3rd congressional district (9.4%). Its state senate district is State Senate District 12; its state house districts are State House District 4 (91%) and State House District 9 (9.4%).
See it on the mapAll of Kansas
City and county
| City or town | Share of ZIP residents |
|---|---|
| La Cygne | 30% |
| Linn Valley | 28% |
| County | Share of ZIP residents |
|---|---|
| Linn County | 91% |
| Miami County | 9.4% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Lincoln township | 73% |
| Scott township | 16% |
| Miami township | 5.9% |
| Sugar Creek township | 3.5% |
| Valley township | 1.0% |
| Paris township | 0.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Kansas's 2nd congressional district (KS-02) | 91% |
| Kansas's 3rd congressional district (KS-03) | 9.4% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 12 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 4 | 91% |
| State House District 9 | 9.4% |
Voting precincts
7 voting precincts overlap ZIP 66040. 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:66040")
ZIP 66040 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.