ZIP code 70374: Lockport, LA
ZIP code 70374 is in Lockport (37% of residents) and Lockport Heights (10%), in Lafourche Parish, Louisiana. 53% of its residents live outside city limits. It is in Louisiana's 1st congressional district (90%) and Louisiana's 6th congressional district (10%). Its state senate district is State Senate District 20; its state house district is State House District 54.
See it on the mapAll of Louisiana
City and county
| City or town | Share of ZIP residents |
|---|---|
| Lockport | 37% |
| Lockport Heights | 10% |
| Larose | 0.3% |
| County | Share of ZIP residents |
|---|---|
| Lafourche Parish | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 7 | 100% |
| District 5 | land only |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Louisiana's 1st congressional district (LA-01) | 90% |
| Louisiana's 6th congressional district (LA-06) | 10% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (LA-01) | Steve Scalise (R) | 202-225-3015 | 90% |
| U.S. Representative (LA-06) | Cleo Fields (D) | 202-225-3901 | 10% |
| U.S. Senator | Bill Cassidy (R) | 202-224-5824 · contact form | statewide |
| U.S. Senator | John Kennedy (R) | 202-224-4623 · contact form | statewide |
| State Senator (State Senate District 20) | Mike Fési (R) | 985-858-2979 | 100% |
| State Representative (State House District 54) | Joe Orgeron (R) | 985-693-9000 | 100% |
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
- Lockport website: http://townoflockport.com/
- Lockport laws: search for the Lockport, Louisiana code of ordinances
- Lockport Heights laws: search for the Lockport Heights, Louisiana code of ordinances
- Lafourche Parish website: http://www.lafourchegov.org
- Lafourche Parish laws: search for the Lafourche Parish, Louisiana code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 20 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 54 | 100% |
Voting precincts
8 voting precincts overlap ZIP 70374. 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:70374")
ZIP 70374 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.