Centennial, Colorado
Centennial is a city in Arapahoe County, Colorado, with 108,418 residents in 2020. It spans 2 congressional districts: CO-06 (98%) and CO-04 (2.5%). It spans 2 state senate and 3 state house districts.
County
| County | Share of residents |
|---|---|
| Arapahoe County | 100% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Colorado's 6th congressional district (CO-06) | 98% |
| Colorado's 4th congressional district (CO-04) | 2.5% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Stephanie Piko | citywide | |
| U.S. Representative (CO-06) | Jason Crow (D) | 202-225-7882 | 98% |
| U.S. Representative (CO-04) | Lauren Boebert (R) | 202-225-4761 | 2.5% |
| U.S. Senator | John W. Hickenlooper (D) | 202-224-5941 · contact form | statewide |
| U.S. Senator | Michael F. Bennet (D) | 202-224-5852 · contact form | statewide |
| State Senator (State Senate District 16) | Chris Kolker (Democratic) | 53% | |
| State Senator (State Senate District 27) | Tom Sullivan (Democratic) | 47% | |
| State Representative (State House District 37) | Chad Clifford (Democratic) | 44% | |
| State Representative (State House District 38) | Gretchen Rydin (Democratic) | 28% | |
| State Representative (State House District 61) | Eliza Hamrick (Democratic) | 28% |
From Wikidata (community-maintained); confirm on the city's website.
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
- Centennial website: https://www.centennialco.gov/Home
- Centennial laws: search for the Centennial, Colorado code of ordinances
- Arapahoe County website: http://www.co.arapahoe.co.us
- Arapahoe County laws: search for the Arapahoe County, Colorado code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 16 | 53% |
| State Senate District 27 | 47% |
| State house district | Share of residents |
|---|---|
| State House District 37 | 44% |
| State House District 38 | 28% |
| State House District 61 | 28% |
ZIP codes
Percentages mark ZIPs only partly in Centennial: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Centennial'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:0812815")
Centennial 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.