Washington’s 1st Congressional District is represented by Suzan K. DelBene (D) in the U.S. House of Representatives. The district is one of Washington’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
773,262
Median Household Income
$131,931
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+28
2024 presidential margin (Trump vs Harris). Source: The Downballot.
District boundary, 119th Congress. Boundary data: U.S. Census Bureau TIGERweb. Map tiles: OpenStreetMap.
Suzan K. DelBene and Washington's 1st Congressional District
Suzan K. DelBene, a member of the Democratic Party, represents Washington's 1st Congressional District and has held the seat since November 13, 2012. 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 Ways and Means.
The current term ends January 3, 2027. The seat is on the ballot on Tuesday, November 3, 2026. Washington office phone: 202-225-6311. Official site: delbene.house.gov.
Current Representative
Rep. Suzan K. DelBene (D)
119th Congress • Democrat • Representing this district since November 13, 2012
Suzan K. DelBene currently represents Washington’s 1st 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
- Suzan DelBene, Democratic Incumbent
- Mary Silva, Republican
Source: Washington 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 in person at a county elections office or voting center until 8 p.m. on Election Day. |
| Early in-person voting | October 16 to November 3 Voting centers are open through Election Day. |
| Mail ballot | Every registered voter is mailed a ballot by October 16. |
| Return a mail ballot | Postmarked by November 3, or placed in a drop box by 8 p.m. on November 3. |
| Election Day | Tuesday, November 3, 2026 |
Check your registration with the Washington voter lookup. Dates come from the Washington election office and were checked September 26, 2026. States can change deadlines, so confirm with your election office before you act.
Polling places in Washington have hours set locally: opening varies, closing at 8 p.m.. Confirm your registration and polling place on the official federal voter page for Washington: vote.gov.
What is on the ballot nationally on November 3, 2026
Contact Your Representative
Washington Office
2311 Rayburn House Office Building
Washington, DC 20515
Phone: (202) 225-6311
Online
Committee Assignments
About This District
The district covers parts of Snohomish and King counties in Washington. Its largest cities are Kirkland (about 92,000), Redmond (about 73,000), Marysville (about 71,000), and Bothell (about 48,000).
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 Washington's 1st Congressional District?
Suzan K. DelBene (D) represents Washington's 1st Congressional District in the U.S. House of Representatives.
What political party is Suzan K. DelBene a member of?
Suzan K. DelBene is a member of the Democratic Party.
How can I contact Suzan K. DelBene?
You can reach Suzan K. DelBene by phone at 202-225-6311 or through their official website at https://delbene.house.gov.
When does Suzan K. DelBene's current term end?
Suzan K. DelBene's current term in the U.S. House of Representatives ends on January 3, 2027.
Where is Washington's 1st Congressional District?
Washington's 1st Congressional District is located in the state of Washington and is one of the 435 voting congressional districts in the U.S. House of Representatives.
What district does Suzan K. DelBene represent?
Suzan K. DelBene has represented Washington's 1st Congressional District since November 13, 2012. The boundary map for the district is on this page.
Where can I see a map of Suzan K. DelBene's district?
The boundary map for Washington's 1st Congressional District is on this page. It is drawn from U.S. Census Bureau TIGERweb boundary files for the 119th Congress.
What committees is Suzan K. DelBene on?
Suzan K. DelBene sits on House Committee on Ways and Means. Committee assignments come from the Clerk of the House MemberData file.
Is Suzan K. DelBene still in Congress?
This site shows Suzan K. DelBene holding Washington's 1st 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 Washington
ZIP Codes in Washington's 1st Congressional District
This congressional district contains 38 ZIP codes. The most common 10 are shown below; expand the full list to see every ZIP in the district.
32 of these ZIP codes also extend into another Washington district, so a ZIP code here does not always identify a single representative. Examples include 98004 (also in the 9th), 98005 (also in the 9th), 98007 (also in the 9th), 98008 (also in the 9th), 98020 (also in the 2nd), 98026 (also in the 2nd), 98028 (also in the 7th), 98036 (also in the 2nd).
- 98004
- 98005
- 98007
- 98008
- 98011
- 98012
- 98020
- 98021
- 98026
- 98028
View all 38 ZIP codes in this district
- 98004
- 98005
- 98007
- 98008
- 98011
- 98012
- 98020
- 98021
- 98026
- 98028
- 98033
- 98034
- 98036
- 98037
- 98039
- 98043
- 98052
- 98053
- 98072
- 98077
- 98087
- 98155
- 98201
- 98203
- 98204
- 98208
- 98223
- 98251
- 98252
- 98256
- 98258
- 98270
- 98271
- 98272
- 98290
- 98292
- 98294
- 98296
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: Maria Cantwell (D), Patty Murray (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.