Boundary Atlas

ZIP code 39401: Hattiesburg, MS

ZIP code 39401 is in Hattiesburg (78% of residents) and Glendale (3.9%), in Forrest County (95%), Lamar County (3.9%), Jones County (0.8%) and Covington County (0.1%), Mississippi. 18% of its residents live outside city limits. It is in Mississippi's 4th congressional district (100%) and Mississippi's 3rd congressional district (0.1%). Its state senate districts are State Senate District 45 (84%), State Senate District 44 (15%), State Senate District 42 (0.8%) and State Senate District 41 (0.1%); its state house districts are State House District 103 (51%), State House District 102 (35%), State House District 104 (7.4%), State House District 87 (5.1%) and State House District 90 (1.0%).

43,183residents (2020 Census)
188.9 sq miland area
2cities and towns
2congressional districts
28voting precincts

See it on the mapAll of Mississippi

City and county

City or townShare of ZIP residents
Hattiesburg78%
Glendale3.9%

CountyShare of ZIP residents
Forrest County95%
Lamar County3.9%
Jones County0.8%
Covington County0.1%

Town or county subdivisionShare of ZIP residents
District 127%
District 426%
District 222%
District 520%
District 23.9%
District 40.8%
District 20.1%

Congressional districts

Congressional districtShare of ZIP residents
Mississippi's 4th congressional district (MS-04)100%
Mississippi's 3rd congressional district (MS-03)0.1%

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 districtShare of ZIP residents
State Senate District 4584%
State Senate District 4415%
State Senate District 420.8%
State Senate District 410.1%

State house districtShare of ZIP residents
State House District 10351%
State House District 10235%
State House District 1047.4%
State House District 875.1%
State House District 901.0%

Voting precincts

28 voting precincts overlap ZIP 39401. 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:39401")

ZIP 39401 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.