Boundary Atlas

ZIP code 70589: Washington, LA

ZIP code 70589 is in Washington (21% of residents), in St. Landry Parish (97%) and Evangeline Parish (2.6%), Louisiana. 79% of its residents live outside city limits. It is in Louisiana's 5th congressional district (97%) and Louisiana's 4th congressional district (2.6%). Its state senate districts are State Senate District 17 (72%), State Senate District 24 (26%) and State Senate District 28 (2.6%); its state house districts are State House District 28 (54%), State House District 40 (29%), State House District 46 (14%) and State House District 38 (2.6%).

3,464residents (2020 Census)
118.2 sq miland area
2cities and towns
2congressional districts
15voting precincts

See it on the mapAll of Louisiana

City and county

City or townShare of ZIP residents
Washington21%
Lebeau0.1%

CountyShare of ZIP residents
St. Landry Parish97%
Evangeline Parish2.6%

Town or county subdivisionShare of ZIP residents
District 468%
District 529%
District 91.1%
District 101.1%
District 80.4%

Congressional districts

Congressional districtShare of ZIP residents
Louisiana's 5th congressional district (LA-05)97%
Louisiana's 4th congressional district (LA-04)2.6%

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)202-225-849097%
U.S. Representative (LA-04)Mike Johnson (R)202-225-27772.6%
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 17)Caleb Kleinpeter (R)225-246-883872%
State Senator (State Senate District 24)Gerald Boudreaux (Democratic)26%
State Senator (State Senate District 28)Heather Cloud (R)337-461-25952.6%
State Representative (State House District 28)Daryl Deshotel (R)318-253-889154%
State Representative (State House District 40)Dustin Miller (Democratic)337-943-290029%
State Representative (State House District 46)Chad Boyer (R)337-332-333114%
State Representative (State House District 38)Rhonda Butler (R)2.6%

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 1772%
State Senate District 2426%
State Senate District 282.6%

State house districtShare of ZIP residents
State House District 2854%
State House District 4029%
State House District 4614%
State House District 382.6%

Voting precincts

15 voting precincts overlap ZIP 70589. 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:70589")

ZIP 70589 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.