Colorado’s 7th Congressional District is represented by Brittany Pettersen (D) in the U.S. House of Representatives. The district is one of Colorado’s seats in the 435-member House of Representatives. After the 2020 Census, the average congressional district had 761,169 people, according to the U.S. Census Bureau, and these district boundaries were drawn during the redistricting cycle that followed.
Congressional representatives serve two-year terms and face election every even-numbered year. The next election for this seat will take place on November 3, 2026.
Population
721,623
Median Household Income
$100,667
Population and income: U.S. Census Bureau, American Community Survey 5-year estimates for 2019 to 2023, for district lines in effect on January 1, 2023.
Partisan Lean
D+15
2024 presidential margin (Trump vs Harris). Source: The Downballot.
District boundary, 119th Congress. Boundary data: U.S. Census Bureau TIGERweb. Map tiles: OpenStreetMap.
Brittany Pettersen and Colorado's 7th Congressional District
Brittany Pettersen, a member of the Democratic Party, represents Colorado's 7th Congressional District and has held the seat since January 3, 2023. The boundary map for the district is above and the ZIP codes it covers are listed further down this page.
Committee assignments: House Committee on Financial Services.
The current term ends January 3, 2027. The seat is on the ballot on Tuesday, November 3, 2026. Washington office phone: 202-225-2645. Official site: pettersen.house.gov.
Current Representative
Rep. Brittany Pettersen (D)
119th Congress • Democrat • Representing this district since January 3, 2023
Brittany Pettersen currently represents Colorado’s 7th Congressional District as a member of the Democratic Party in the United States House of Representatives. The representative’s district office helps constituents with federal casework, such as Social Security claims and veterans’ benefits.
2026 Election
On the ballot November 3, 2026
- Brittany Pettersen, Democratic Incumbent
- Tim Bennett, Republican
- Susan Hall, Unity
- Lawrence Kyle Clark, American Constitution
- Dan "Kilo" Sallis, Libertarian
- Joe Krzeczkowski, Unaffiliated
Source: Colorado Secretary of State, 2026 general election candidate list, checked September 26, 2026. Write-in candidates are not listed.
Key dates for November 3, 2026
| Register by mail | Monday, October 26 Application must be received by this date. |
|---|---|
| Register online | Monday, October 26 |
| Register in person | Through Election Day, November 3 |
| Same-day registration | Register by October 26 to be mailed a ballot. After that, register and vote in person at a voter service and polling center through Election Day. |
| Early in-person voting | October 19 to November 2 Voter service and polling centers open by October 19 and stay open on Election Day. |
| Mail ballot | Every active voter is mailed a ballot. No request is needed. |
| Return a mail ballot | Must be received by 7 p.m. on November 3. Postmarks do not count. |
| Election Day | Tuesday, November 3, 2026 |
Check your registration with the Colorado voter lookup. Dates come from the Colorado election office and were checked September 26, 2026. States can change deadlines, so confirm with your election office before you act.
Polling places in Colorado are open 7 a.m. to 7 p.m., local time. Confirm your registration and polling place on the official federal voter page for Colorado: vote.gov.
What is on the ballot nationally on November 3, 2026
Contact Your Representative
Washington Office
348 Cannon House Office Building
Washington, DC 20515
Phone: (202) 225-2645
Online
Committee Assignments
About This District
The district spans 8 counties in Colorado, including Park, Lake, Teller, Chaffee, and Fremont, and others. Its largest cities are Lakewood (about 156,000), Arvada (about 124,000), Westminster (about 116,000), and Broomfield (about 74,000).
Learn more about congressional districts
- What is a congressional district?
- What does a U.S. Representative do?
- What is gerrymandering?
- How congressional redistricting works
Frequently Asked Questions
Who represents Colorado's 7th Congressional District?
Brittany Pettersen (D) represents Colorado's 7th Congressional District in the U.S. House of Representatives.
What political party is Brittany Pettersen a member of?
Brittany Pettersen is a member of the Democratic Party.
How can I contact Brittany Pettersen?
You can reach Brittany Pettersen by phone at 202-225-2645 or through their official website at https://pettersen.house.gov.
When does Brittany Pettersen's current term end?
Brittany Pettersen's current term in the U.S. House of Representatives ends on January 3, 2027.
Where is Colorado's 7th Congressional District?
Colorado's 7th Congressional District is located in the state of Colorado and is one of the 435 voting congressional districts in the U.S. House of Representatives.
What district does Brittany Pettersen represent?
Brittany Pettersen has represented Colorado's 7th Congressional District since January 3, 2023. The boundary map for the district is on this page.
Where can I see a map of Brittany Pettersen's district?
The boundary map for Colorado's 7th Congressional District is on this page. It is drawn from U.S. Census Bureau TIGERweb boundary files for the 119th Congress.
What committees is Brittany Pettersen on?
Brittany Pettersen sits on House Committee on Financial Services. Committee assignments come from the Clerk of the House MemberData file.
Is Brittany Pettersen still in Congress?
This site shows Brittany Pettersen holding Colorado's 7th Congressional District, checked against the Clerk of the House member list. All 435 House seats are on the ballot on November 3, 2026, so the answer can change with that election.
Nearby Districts in Colorado
ZIP Codes in Colorado's 7th Congressional District
This congressional district contains 82 ZIP codes. The most common 10 are shown below; expand the full list to see every ZIP in the district.
36 of these ZIP codes also extend into another Colorado district, so a ZIP code here does not always identify a single representative. Examples include 80002 (also in the 8th), 80003 (also in the 8th), 80020 (also in the 2nd and 8th), 80023 (also in the 8th), 80026 (also in the 2nd), 80030 (also in the 8th), 80031 (also in the 8th), 80123 (also in the 1st and 6th).
- 80002
- 80003
- 80004
- 80005
- 80007
- 80020
- 80021
- 80023
- 80026
- 80030
View all 82 ZIP codes in this district
- 80002
- 80003
- 80004
- 80005
- 80007
- 80020
- 80021
- 80023
- 80026
- 80030
- 80031
- 80033
- 80123
- 80125
- 80127
- 80128
- 80135
- 80212
- 80214
- 80215
- 80221
- 80226
- 80227
- 80228
- 80232
- 80234
- 80235
- 80401
- 80403
- 80419
- 80420
- 80421
- 80425
- 80432
- 80433
- 80439
- 80440
- 80448
- 80449
- 80453
- 80454
- 80456
- 80457
- 80461
- 80465
- 80470
- 80475
- 80514
- 80516
- 80603
- 80809
- 80813
- 80814
- 80816
- 80819
- 80820
- 80827
- 80829
- 80860
- 80863
- 80904
- 80906
- 80926
- 81069
- 81201
- 81211
- 81212
- 81221
- 81222
- 81223
- 81226
- 81227
- 81228
- 81232
- 81233
- 81236
- 81240
- 81242
- 81244
- 81251
- 81252
- 81253
ZIP-to-district boundaries sourced from the U.S. Census Bureau's 2024-07-30 Block Equivalency File for the 119th Congress. ZCTAs (ZIP Code Tabulation Areas) approximate USPS delivery ZIPs.
U.S. Senators for this state: Michael F. Bennet (D), John W. Hickenlooper (D)
Last updated September 27, 2026.
Data last checked September 26, 2026.
See how this district compares with another using Compare Districts.