Derby, Colorado
Derby is a Census-designated place (an unincorporated community) in Adams County, Colorado, with 8,407 residents in 2020. It is in Colorado's 8th congressional district. Its state senate district is State Senate District 21; its state house district is State House District 32.
County
| County | Share of residents |
|---|---|
| Adams County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Colorado's 8th congressional district (CO-08) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CO-08) | Gabe Evans (R) | 202-225-5625 | 100% |
| 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 21) | Adrienne Benavidez (Democratic) | 100% | |
| State Representative (State House District 32) | María González (Democratic) | 100% |
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
- Derby laws: search for the Derby, Colorado code of ordinances
- Adams County laws: search for the Adams County, Colorado code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 21 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 32 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Derby: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Derby'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:0820275")
Derby here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.