ZIP code 70121: Jefferson, LA
ZIP code 70121 is in Jefferson (92% of residents) and Elmwood (7.7%), in Jefferson Parish, Louisiana. It is in Louisiana's 1st congressional district (85%) and Louisiana's 2nd congressional district (15%). Its state senate districts are State Senate District 9 (74%), State Senate District 10 (15%) and State Senate District 5 (10%); its state house district is State House District 82.
See it on the mapAll of Louisiana
City and county
| City or town | Share of ZIP residents |
|---|---|
| Jefferson | 92% |
| Elmwood | 7.7% |
| County | Share of ZIP residents |
|---|---|
| Jefferson Parish | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 2 | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Louisiana's 1st congressional district (LA-01) | 85% |
| Louisiana's 2nd congressional district (LA-02) | 15% |
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 | 85% |
| U.S. Representative (LA-02) | Troy A. Carter (D) | 202-225-6636 | 15% |
| 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 9) | Cameron Henry (R) | 504-838-5433 | 74% |
| State Senator (State Senate District 10) | Kirk Talbot (R) | 504-736-7299 | 15% |
| State Senator (State Senate District 5) | Royce Duplessis (Democratic) | 504-568-2741 | 10% |
| State Representative (State House District 82) | Laurie Schlegel (R) | 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
- Jefferson laws: search for the Jefferson, Louisiana code of ordinances
- Elmwood laws: search for the Elmwood, Louisiana code of ordinances
- Jefferson Parish website: https://www.jeffparish.gov/
- Jefferson Parish laws: search for the Jefferson Parish, Louisiana code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 9 | 74% |
| State Senate District 10 | 15% |
| State Senate District 5 | 10% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 82 | 100% |
Voting precincts
12 voting precincts overlap ZIP 70121. 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:70121")
ZIP 70121 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.