Boundary Atlas

ZIP code 70518: Broussard, LA

ZIP code 70518 is in Broussard (68% of residents) and Cade (4.8%), in Lafayette Parish (85%), St. Martin Parish (11%) and Iberia Parish (3.9%), Louisiana. 27% of its residents live outside city limits. It is in Louisiana's 3rd congressional district. Its state senate districts are State Senate District 22 (60%) and State Senate District 23 (40%); its state house districts are State House District 48 (59%), State House District 43 (39%), State House District 49 (2.2%) and State House District 96 (0.1%).

16,683residents (2020 Census)
41.7 sq miland area
4cities and towns
1congressional district
13voting precincts

See it on the mapAll of Louisiana

City and county

City or townShare of ZIP residents
Broussard68%
Cade4.8%
Lafayette0.8%
Youngsville0.1%

CountyShare of ZIP residents
Lafayette Parish85%
St. Martin Parish11%
Iberia Parish3.9%

Town or county subdivisionShare of ZIP residents
District G85%
District 211%
District 143.9%

Congressional district

Congressional districtShare of ZIP residents
Louisiana's 3rd congressional district (LA-03)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2260%
State Senate District 2340%

State house districtShare of ZIP residents
State House District 4859%
State House District 4339%
State House District 492.2%
State House District 960.1%

Voting precincts

13 voting precincts overlap ZIP 70518. 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:

related_geographies(id="us:zcta:70518")

ZIP 70518 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.