Volcano, California
Volcano is a Census-designated place (an unincorporated community) in Amador County, California, with 104 residents in 2020. It is in California's 5th congressional district. Its state senate district is State Senate District 4; its state house district is Assembly District 1.
County
| County | Share of residents |
|---|---|
| Amador County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| California's 5th congressional district (CA-05) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CA-05) | Tom McClintock (R) | 202-225-2511 | 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 4) | Marie Alvarado-Gil (R) | 916-933-8680 | 100% |
| Assembly Member (Assembly District 1) | Heather Hadwick (R) | 530-223-6300 | 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
- Volcano laws: search for the Volcano, California code of ordinances
- Amador County website: https://www.amadorcounty.gov/
- Amador County laws: search for the Amador County, California code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 4 | 100% |
| State house district | Share of residents |
|---|---|
| Assembly District 1 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Volcano: the share of that ZIP's residents living in it.
- 95689 (8.2%)
Get this in your AI agent
Your agent can get Volcano's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:0683094")
Volcano here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.