ZIP code 66030 is in Gardner (93% of residents), in Johnson County, Kansas. 7.0% of its residents live outside city limits. It is in Kansas's 3rd congressional district. Its state senate districts are State Senate District 37 (100%), State Senate District 9 (0.4%) and State Senate District 23 (<0.1%); its state house districts are State House District 43 (88%), State House District 5 (10%) and State House District 121 (2.0%).
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
State senate district
Share of ZIP residents
State Senate District 37
100%
State Senate District 9
0.4%
State Senate District 23
<0.1%
State house district
Share of ZIP residents
State House District 43
88%
State House District 5
10%
State House District 121
2.0%
Voting precincts
28 voting precincts overlap ZIP 66030.
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:66030")
ZIP 66030 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.