ZIP code 94928: Rohnert Park, CA
ZIP code 94928 is in Rohnert Park (94% of residents) and Sonoma State University (5.7%), in Sonoma County, California. It is in California's 4th congressional district. Its state senate districts are State Senate District 3 (100%) and State Senate District 2 (<0.1%); its state house district is Assembly District 12.
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Rohnert Park | 94% |
| Sonoma State University | 5.7% |
| County | Share of ZIP residents |
|---|---|
| Sonoma County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Petaluma CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| California's 4th congressional district (CA-04) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CA-04) | Mike Thompson (D) | 202-225-3311 | 100% |
| U.S. Senator | Adam B. Schiff (D) | 202-224-3841 | statewide |
| U.S. Senator | Alex Padilla (D) | 202-224-3553 · contact form | statewide |
| State Senator (State Senate District 3) | Christopher Cabaldon (Democratic) | 707-454-3808 | 100% |
| State Senator (State Senate District 2) | Mike McGuire (Democratic) | 707-468-8914 | <0.1% |
| Assembly Member (Assembly District 12) | Damon Connolly (Democratic) | 415-479-4920 | 100% |
Elected in 2024 under CA'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
- Rohnert Park website: http://www.rpcity.org
- Rohnert Park laws: search for the Rohnert Park, California code of ordinances
- Sonoma State University website: http://www.sonoma.edu
- Sonoma State University laws: search for the Sonoma State University, California code of ordinances
- Sonoma County website: https://sonomacounty.gov/
- Sonoma County laws: search for the Sonoma County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 3 | 100% |
| State Senate District 2 | <0.1% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 12 | 100% |
Voting precincts
21 voting precincts overlap ZIP 94928. 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:94928")
ZIP 94928 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.