Boundary Atlas

ZIP code 39740: District 1, MS

ZIP code 39740 is in Caledonia (20% of residents), in Lowndes County (93%) and Monroe County (7.0%), Mississippi. 80% of its residents live outside city limits. It is in Mississippi's 1st congressional district. Its state senate district is State Senate District 17; its state house districts are State House District 37 (55%), State House District 39 (44%) and State House District 41 (0.7%).

5,801residents (2020 Census)
79.6 sq miland area
2cities and towns
1congressional district
3voting precincts

See it on the mapAll of Mississippi

City and county

City or townShare of ZIP residents
Caledonia20%
Gattman0.2%

CountyShare of ZIP residents
Lowndes County93%
Monroe County7.0%

Town or county subdivisionShare of ZIP residents
District 190%
District 37.0%
District 23.4%

Congressional district

Congressional districtShare of ZIP residents
Mississippi's 1st congressional district (MS-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 17100%

State house districtShare of ZIP residents
State House District 3755%
State House District 3944%
State House District 410.7%

Voting precincts

3 voting precincts overlap ZIP 39740. 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:39740")

ZIP 39740 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.