Boundary Atlas

Arcadia, California

Arcadia is a city in Los Angeles County, California, with 56,681 residents in 2020. It is in California's 28th congressional district. Its state senate district is State Senate District 25; its state house district is Assembly District 49.

56,681residents (2020 Census)
10.9 sq miland area
3ZIP codes
1congressional district

County

CountyShare of residents
Los Angeles County100%

Congressional district

Congressional districtShare of residents
California's 28th congressional district (CA-28)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (CA-28)Judy Chu (D)202-225-5464100%
U.S. SenatorAdam B. Schiff (D)202-224-3841statewide
U.S. SenatorAlex Padilla (D)202-224-3553 · contact formstatewide
State Senator (State Senate District 25)Sasha Pérez (Democratic)818-409-0402100%
Assembly Member (Assembly District 49)Mike Fong (Democratic)626-457-4918100%

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

State legislative districts

State senate districtShare of residents
State Senate District 25100%

State house districtShare of residents
Assembly District 49100%

ZIP codes

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

Get this in your AI agent

Your agent can get Arcadia'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:0602462")

Arcadia 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.