Colorado’s 4th Congressional District is represented by Lauren Boebert (R) 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
741,771
Median Household Income
$111,866
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
R+18
2024 presidential margin (Trump vs Harris). Source: The Downballot.
District boundary, 119th Congress. Boundary data: U.S. Census Bureau TIGERweb. Map tiles: OpenStreetMap.
Lauren Boebert and Colorado's 4th Congressional District
Lauren Boebert, a member of the Republican Party, represents Colorado's 4th Congressional District and has held the seat since January 3, 2025. 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 Natural Resources and House Committee on Oversight and Government Reform.
The current term ends January 3, 2027. The seat is on the ballot on Tuesday, November 3, 2026. Washington office phone: 202-225-4761. Official site: boebert.house.gov.
Current Representative
Rep. Lauren Boebert (R)
119th Congress • Republican • Representing this district since January 3, 2025 • In the House since January 3, 2021
Lauren Boebert currently represents Colorado’s 4th Congressional District as a member of the Republican 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
- Lauren Boebert, Republican Incumbent
- Eileen Laubacher, Democratic
- Douglas Mangeris, Libertarian
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
1713 Longworth House Office Building
Washington, DC 20515
Phone: (202) 225-4761
Online
Committee Assignments
About This District
The district spans 21 counties in Colorado, including Baca, Yuma, Washington, Lincoln, and Cheyenne, and others. Its largest cities are Loveland (about 76,000), Castle Rock (about 73,000), Parker (about 59,000), and Windsor (about 33,000).
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 4th Congressional District?
Lauren Boebert (R) represents Colorado's 4th Congressional District in the U.S. House of Representatives.
What political party is Lauren Boebert a member of?
Lauren Boebert is a member of the Republican Party.
How can I contact Lauren Boebert?
You can reach Lauren Boebert by phone at 202-225-4761 or through their official website at https://boebert.house.gov.
When does Lauren Boebert's current term end?
Lauren Boebert's current term in the U.S. House of Representatives ends on January 3, 2027.
Where is Colorado's 4th Congressional District?
Colorado's 4th 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 Lauren Boebert represent?
Lauren Boebert has represented Colorado's 4th Congressional District since January 3, 2025. The boundary map for the district is on this page.
Where can I see a map of Lauren Boebert's district?
The boundary map for Colorado's 4th Congressional District is on this page. It is drawn from U.S. Census Bureau TIGERweb boundary files for the 119th Congress.
What committees is Lauren Boebert on?
Lauren Boebert sits on House Committee on Natural Resources and House Committee on Oversight and Government Reform. Committee assignments come from the Clerk of the House MemberData file.
Is Lauren Boebert still in Congress?
This site shows Lauren Boebert holding Colorado's 4th 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 4th Congressional District
This congressional district contains 158 ZIP codes. The most common 10 are shown below; expand the full list to see every ZIP in the district.
70 of these ZIP codes also extend into another Colorado district, so a ZIP code here does not always identify a single representative. Examples include 80011 (also in the 6th), 80013 (also in the 6th), 80015 (also in the 6th), 80016 (also in the 6th), 80018 (also in the 6th), 80019 (also in the 6th), 80022 (also in the 6th and 8th), 80102 (also in the 6th).
- 69168
- 80011
- 80013
- 80015
- 80016
- 80018
- 80019
- 80022
- 80101
- 80102
View all 158 ZIP codes in this district
- 69168
- 80011
- 80013
- 80015
- 80016
- 80018
- 80019
- 80022
- 80101
- 80102
- 80103
- 80104
- 80105
- 80106
- 80107
- 80108
- 80109
- 80112
- 80116
- 80117
- 80118
- 80120
- 80124
- 80125
- 80126
- 80129
- 80130
- 80131
- 80134
- 80135
- 80136
- 80137
- 80138
- 80504
- 80513
- 80524
- 80525
- 80526
- 80528
- 80534
- 80535
- 80536
- 80537
- 80538
- 80546
- 80547
- 80549
- 80550
- 80601
- 80603
- 80610
- 80611
- 80612
- 80615
- 80621
- 80622
- 80624
- 80631
- 80634
- 80642
- 80643
- 80644
- 80645
- 80646
- 80648
- 80649
- 80650
- 80652
- 80653
- 80654
- 80701
- 80705
- 80720
- 80721
- 80722
- 80723
- 80726
- 80727
- 80728
- 80729
- 80731
- 80732
- 80733
- 80734
- 80735
- 80736
- 80737
- 80740
- 80741
- 80742
- 80743
- 80744
- 80745
- 80746
- 80747
- 80749
- 80750
- 80751
- 80754
- 80755
- 80757
- 80758
- 80759
- 80801
- 80802
- 80804
- 80805
- 80807
- 80808
- 80810
- 80812
- 80815
- 80817
- 80818
- 80821
- 80822
- 80823
- 80824
- 80825
- 80826
- 80828
- 80830
- 80831
- 80832
- 80833
- 80834
- 80835
- 80836
- 80861
- 80862
- 80864
- 80928
- 81021
- 81029
- 81033
- 81036
- 81039
- 81041
- 81043
- 81044
- 81045
- 81047
- 81050
- 81052
- 81054
- 81057
- 81058
- 81062
- 81063
- 81064
- 81071
- 81073
- 81076
- 81084
- 81087
- 81090
- 81092
- 82082
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)
Local surveillance camera contracts
Automated license plate reader contracts are approved locally, by city councils and county boards, not by Congress. These places in this district have a contract record documented from public sources:
Records compiled by Who Approved This, an independent public-records project. Approval dates, amounts, and end dates are cited to council agendas, minutes, and signed contracts.
Place list rebuilt from the Who Approved This public export on September 26, 2026.
Last updated September 27, 2026.
Data last checked September 26, 2026.
See how this district compares with another using Compare Districts.