San Marcos, California
San Marcos is a city in San Diego County, California, with 94,833 residents in 2020. It is in California's 48th congressional district. Its state senate district is State Senate District 40; its state house district is Assembly District 76.
County
| County | Share of residents |
|---|---|
| San Diego County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| California's 48th congressional district (CA-48) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Rebecca Jones | 760-744-1050 | citywide |
| U.S. Representative (CA-48) | Darrell Issa (R) | 202-225-5672 | 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 40) | Brian Jones (R) | 760-796-4655 | 100% |
| Assembly Member (Assembly District 76) | Darsh Patel (Democratic) | 858-675-0760 | 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: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- San Marcos laws: search for the San Marcos, California code of ordinances
- San Diego County laws: search for the San Diego County, California code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 40 | 100% |
| State house district | Share of residents |
|---|---|
| Assembly District 76 | 100% |
ZIP codes
Percentages mark ZIPs only partly in San Marcos: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get San Marcos's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:0668196")
San Marcos 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.