ZIP code 94515: Calistoga, CA
ZIP code 94515 is in Calistoga (76% of residents), in Napa County (94%) and Sonoma County (6.2%), California. 24% of its residents live outside city limits. It is in California's 4th congressional district (99%) and California's 1st congressional district (1.5%). Its state senate districts are State Senate District 3 (94%) and State Senate District 2 (6.2%); its state house districts are Assembly District 4 (94%) and Assembly District 2 (6.2%).
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Calistoga | 76% |
| County | Share of ZIP residents |
|---|---|
| Napa County | 94% |
| Sonoma County | 6.2% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Calistoga CCD | 92% |
| Cloverdale-Geyserville CCD | 3.6% |
| Santa Rosa CCD | 2.4% |
| Angwin CCD | 1.0% |
| St. Helena CCD | 0.6% |
| Healdsburg CCD | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| California's 4th congressional district (CA-04) | 99% |
| California's 1st congressional district (CA-01) | 1.5% |
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 (CA-04) | Mike Thompson (D) | 202-225-3311 | 99% |
| U.S. Representative (CA-01) | James Gallagher (R) | 202-225-3076 | 1.5% |
| 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 | 94% |
| State Senator (State Senate District 2) | Mike McGuire (Democratic) | 707-468-8914 | 6.2% |
| Assembly Member (Assembly District 4) | Cecilia Aguiar-Curry (Democratic) | 530-757-1034 | 94% |
| Assembly Member (Assembly District 2) | Chris Rogers (Democratic) | 707-576-2526 | 6.2% |
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
- Calistoga laws: search for the Calistoga, California code of ordinances
- Napa County website: https://www.napacounty.gov/
- Napa County laws: search for the Napa County, 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 | 94% |
| State Senate District 2 | 6.2% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 4 | 94% |
| Assembly District 2 | 6.2% |
Voting precincts
12 voting precincts overlap ZIP 94515. 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:94515")
ZIP 94515 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.