Boundary Atlas

Arvada, Colorado

Arvada is a city in Jefferson County (98% of residents) and Adams County (2.3%), Colorado, with 124,393 residents in 2020. It is in Colorado's 7th congressional district. It spans 2 state senate and 2 state house districts.

124,393residents (2020 Census)
39.0 sq miland area
8ZIP codes
1congressional district

County

CountyShare of residents
Jefferson County98%
Adams County2.3%

Congressional district

Congressional districtShare of residents
Colorado's 7th congressional district (CO-07)100%

Elected officials

OfficeMemberContactShare of residents
MayorLauren Simpson720-961-3779citywide
U.S. Representative (CO-07)Brittany Pettersen (D)202-225-2645100%
U.S. SenatorJohn W. Hickenlooper (D)202-224-5941 · contact formstatewide
U.S. SenatorMichael F. Bennet (D)202-224-5852 · contact formstatewide
State Senator (State Senate District 19)Lindsey Daugherty (Democratic)92%
State Senator (State Senate District 20)Lisa Cutter (Democratic)8.3%
State Representative (State House District 24)Lisa Feret (Democratic)64%
State Representative (State House District 27)Brianna Titone (Democratic)36%

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 1992%
State Senate District 208.3%

State house districtShare of residents
State House District 2464%
State House District 2736%

ZIP codes

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

Get this in your AI agent

Your agent can get Arvada'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:0803455")

Arvada 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.