Boundary Atlas

ZIP code 70438: District 6, LA

ZIP code 70438 is in Franklinton (19% of residents), in Washington Parish (98%), St. Tammany Parish (1.9%) and Tangipahoa Parish (0.3%), Louisiana. 81% of its residents live outside city limits. It is in Louisiana's 5th congressional district (98%) and Louisiana's 1st congressional district (1.9%). Its state senate district is State Senate District 12; its state house districts are State House District 75 (98%), State House District 74 (1.9%) and State House District 86 (0.3%).

19,652residents (2020 Census)
347.9 sq miland area
1cities and towns
2congressional districts
21voting precincts

See it on the mapAll of Louisiana

City and county

City or townShare of ZIP residents
Franklinton19%

CountyShare of ZIP residents
Washington Parish98%
St. Tammany Parish1.9%
Tangipahoa Parish0.3%

Town or county subdivisionShare of ZIP residents
District 633%
District 225%
District 723%
District 517%
District 31.9%
District 10.3%
District 40.2%

Congressional districts

Congressional districtShare of ZIP residents
Louisiana's 5th congressional district (LA-05)98%
Louisiana's 1st congressional district (LA-01)1.9%

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.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (LA-05)Julia Letlow (R)202-225-849098%
U.S. Representative (LA-01)Steve Scalise (R)202-225-30151.9%
U.S. SenatorBill Cassidy (R)202-224-5824 · contact formstatewide
U.S. SenatorJohn Kennedy (R)202-224-4623 · contact formstatewide
State Senator (State Senate District 12)Beth Mizell (R)985-839-3936100%
State Representative (State House District 75)John Wyble (R)98%
State Representative (State House District 74)Peter Egan (R)985-893-63191.9%
State Representative (State House District 86)Nicky Muscarello (R)985-974-00090.3%

Elected in 2024 under LA's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 12100%

State house districtShare of ZIP residents
State House District 7598%
State House District 741.9%
State House District 860.3%

Voting precincts

21 voting precincts overlap ZIP 70438. Map them, with each precinct's share of the ZIP's residents.

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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:

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ZIP 70438 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.