Boundary Atlas

San Francisco, California

San Francisco is a city in San Francisco County, California, with 873,766 residents in 2020. It spans 2 congressional districts: CA-11 (87%) and CA-15 (13%). It spans 2 state house districts. Its state senate district is State Senate District 11.

873,766residents (2020 Census)
46.7 sq miland area
28ZIP codes
2congressional districts

County

CountyShare of residents
San Francisco County100%

Congressional districts

Congressional districtShare of residents
California's 11th congressional district (CA-11)87%
California's 15th congressional district (CA-15)13%

Elected officials

OfficeMemberContactShare of residents
MayorDaniel Lurie415-554-6141citywide
U.S. Representative (CA-11)Nancy Pelosi (D)202-225-496587%
U.S. Representative (CA-15)Kevin Mullin (D)202-225-353113%
U.S. SenatorAdam B. Schiff (D)202-224-3841statewide
U.S. SenatorAlex Padilla (D)202-224-3553 · contact formstatewide
State Senator (State Senate District 11)Scott Wiener (Democratic)415-557-1300100%
Assembly Member (Assembly District 17)Matt Haney (Democratic)415-557-301359%
Assembly Member (Assembly District 19)Catherine Stefani (Democratic)415-557-231241%

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

State legislative districts

State senate districtShare of residents
State Senate District 11100%

State house districtShare of residents
Assembly District 1759%
Assembly District 1941%

ZIP codes

Percentages mark ZIPs only partly in San Francisco: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get San Francisco'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:0667000")

San Francisco 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.