Berkeley, California
Berkeley is a city in Alameda County, California, with 124,321 residents in 2020. It is in California's 12th congressional district. Its state senate district is State Senate District 7; its state house district is Assembly District 14.
County
| County | Share of residents |
|---|---|
| Alameda County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| California's 12th congressional district (CA-12) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| mayor | Adena Ishii | citywide | |
| U.S. Representative (CA-12) | Lateefah Simon (D) | 202-225-2661 | 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 7) | Jesse Arreguín (Democratic) | 510-286-1333 | 100% |
| Assembly Member (Assembly District 14) | Buffy Wicks (Democratic) | 510-286-1400 | 100% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- Berkeley website: https://berkeleyca.gov
- Berkeley laws: search for the Berkeley, California code of ordinances
- Alameda County website: https://www.acgov.org/
- Alameda County laws: search for the Alameda County, California code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 7 | 100% |
| State house district | Share of residents |
|---|---|
| Assembly District 14 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Berkeley: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Berkeley'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:0606000")
Berkeley here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.