ZIP code 70346: Donaldsonville, LA
ZIP code 70346 is in Donaldsonville (65% of residents), Lemannville (5.9%) and Belle Rose (3.4%), in Ascension Parish (94%) and Assumption Parish (5.9%), Louisiana. 26% of its residents live outside city limits. It is in Louisiana's 2nd congressional district (94%) and Louisiana's 6th congressional district (5.9%). Its state senate district is State Senate District 2; its state house districts are State House District 58 (94%) and State House District 60 (5.9%).
See it on the mapAll of Louisiana
City and county
| City or town | Share of ZIP residents |
|---|---|
| Donaldsonville | 65% |
| Lemannville | 5.9% |
| Belle Rose | 3.4% |
| County | Share of ZIP residents |
|---|---|
| Ascension Parish | 94% |
| Assumption Parish | 5.9% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 1 | 94% |
| District 7 | 5.8% |
| District 1 | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Louisiana's 2nd congressional district (LA-02) | 94% |
| Louisiana's 6th congressional district (LA-06) | 5.9% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (LA-02) | Troy A. Carter (D) | 202-225-6636 | 94% |
| U.S. Representative (LA-06) | Cleo Fields (D) | 202-225-3901 | 5.9% |
| 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 2) | Ed Price (Democratic) | 225-644-6738 | 100% |
| State Representative (State House District 58) | Ken Brass (Democratic) | 225-265-9005 | 94% |
| State Representative (State House District 60) | Chasity Martinez (Democratic) | 225-401-4079 | 5.9% |
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
- Donaldsonville website: http://www.donaldsonville-la.gov/
- Donaldsonville laws: search for the Donaldsonville, Louisiana code of ordinances
- Lemannville laws: search for the Lemannville, Louisiana code of ordinances
- Belle Rose laws: search for the Belle Rose, Louisiana code of ordinances
- Ascension Parish website: http://www.ascensionparish.net
- Ascension Parish laws: search for the Ascension Parish, Louisiana code of ordinances
- Assumption Parish website: https://assumptionla.com/
- Assumption Parish laws: search for the Assumption Parish, Louisiana code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 2 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 58 | 94% |
| State House District 60 | 5.9% |
Voting precincts
12 voting precincts overlap ZIP 70346. 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:70346")
ZIP 70346 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.