ZIP code 40328: Marion County, KY
ZIP code 40328 is in Marion County (57%), Boyle County (34%) and Casey County (9.8%), Kentucky, outside any city or Census-designated place. It is in Kentucky's 1st congressional district. Its state senate districts are State Senate District 14 (57%), State Senate District 12 (34%) and State Senate District 21 (9.8%); its state house districts are State House District 51 (57%) and State House District 54 (43%).
See it on the mapAll of Kentucky
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Marion County | 57% |
| Boyle County | 34% |
| Casey County | 9.8% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Gravel Switch CCD | 57% |
| Perryville CCD | 31% |
| Dividing Ridge CCD | 9.8% |
| Junction City CCD | 2.7% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Kentucky's 1st congressional district (KY-01) | 100% |
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 14 | 57% |
| State Senate District 12 | 34% |
| State Senate District 21 | 9.8% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 51 | 57% |
| State House District 54 | 43% |
Voting precincts
4 voting precincts overlap ZIP 40328. 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:40328")
ZIP 40328 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.