California’s 18th Congressional District is represented by Zoe Lofgren (D) in the U.S. House of Representatives. The district is one of California’s seats in the 435-member House of Representatives. Each congressional district represents roughly 760,000 people based on the 2020 Census, and district boundaries were most recently redrawn during the redistricting cycle following that census.
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
756,539
Median Household Income
$100,769
Partisan Lean
D+30
2024 presidential margin (Trump vs Harris). Source: The Downballot.
District boundary, 119th Congress. Boundary data: U.S. Census Bureau TIGERweb. Map tiles: OpenStreetMap.
Zoe Lofgren and California's 18th Congressional District
Zoe Lofgren, a member of the Democratic Party, represents California's 18th 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 Science, Space, and Technology and House Committee on the Judiciary.
The current term ends January 3, 2027. The seat is on the ballot on Tuesday, November 3, 2026. Washington office phone: 202-225-3072. Official site: lofgren.house.gov.
Current Representative
Rep. Zoe Lofgren (D)
119th Congress • Democrat • Representing this district since January 3, 2023 • In the House since January 4, 1995
Zoe Lofgren currently represents California’s 18th 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
The Federal Election Commission has 4 candidate filings on record for the 2026 race in this district as of September 16, 2026. A filing stays on record after a candidate withdraws or loses a primary, so some names below will not be on the November 3, 2026 ballot.
- Zoe Lofgren (Democratic, incumbent)
- Luis Antonio Acevedo-Arreguin (Democratic)
- Christopher Demers (No Party Affiliation)
- Shane Lewis (Republican)
Source: Federal Election Commission filings, refreshed automatically. The FEC lists everyone who has filed to run; it does not show who won a primary. Voters can confirm registration and polling places through their state's secretary of state website.
On the ballot Tuesday, November 3, 2026
This seat is on the ballot on Tuesday, November 3, 2026. All 435 seats in the U.S. House are, because House terms run 2 years. The winner takes office on January 3, 2027.
Zoe Lofgren holds the seat now and appears in the Federal Election Commission list above, so the incumbent has filed to run again.
Polling places in California are open 7 a.m. to 8 p.m., local time. Confirm your registration and polling place on the official federal voter page for California: vote.gov.
What is on the ballot nationally on November 3, 2026
Contact Your Representative
Washington Office
1401 Longworth House Office Building
Washington, DC 20515
Phone: (202) 225-3072
Online
Committee Assignments
About This District
The district covers all of San Benito County and parts of Monterey, Santa Clara, Santa Cruz, and San Luis Obispo counties in California. Its largest cities are Salinas (about 164,000), Gilroy (about 60,000), Watsonville (about 53,000), and Morgan Hill (about 45,000).
Frequently Asked Questions
Who represents California's 18th Congressional District?
Zoe Lofgren (D) represents California's 18th Congressional District in the U.S. House of Representatives.
What political party is Zoe Lofgren a member of?
Zoe Lofgren is a member of the Democratic Party.
How can I contact Zoe Lofgren?
You can reach Zoe Lofgren by phone at 202-225-3072 or through their official website at https://lofgren.house.gov.
When does Zoe Lofgren's current term end?
Zoe Lofgren's current term in the U.S. House of Representatives ends on January 3, 2027.
Where is California's 18th Congressional District?
California's 18th Congressional District is located in the state of California and is one of the 435 voting congressional districts in the U.S. House of Representatives.
What district does Zoe Lofgren represent?
Zoe Lofgren has represented California's 18th Congressional District since January 3, 2023. The boundary map for the district is on this page.
Where can I see a map of Zoe Lofgren's district?
The boundary map for California's 18th Congressional District is on this page. It is drawn from U.S. Census Bureau TIGERweb boundary files for the 119th Congress.
What committees is Zoe Lofgren on?
Zoe Lofgren sits on House Committee on Science, Space, and Technology and House Committee on the Judiciary. Committee assignments come from the Clerk of the House MemberData file.
Is Zoe Lofgren still in Congress?
This site shows Zoe Lofgren holding California's 18th 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.
Explore More
View all of California’s congressional districts or use our ZIP code lookup to find your own district.
All California Districts → Find Your District →Learn more about congressional districts
- What is a congressional district?
- What does a U.S. Representative do?
- What is gerrymandering?
- How congressional redistricting works
- Mid-decade redistricting explained
- Find your congressional representative
Nearby Districts in California
ZIP Codes in California's 18th Congressional District
This congressional district contains 58 ZIP codes. The most common 10 are shown below; expand the full list to see every ZIP in the district.
52 of these ZIP codes also extend into another California district, so a ZIP code here does not always identify a single representative. Examples include 93210 (also in the 13th and 19th), 93426 (also in the 19th), 93450 (also in the 19th), 93451 (also in the 19th), 93901 (also in the 19th), 93905 (also in the 19th), 93906 (also in the 19th), 93907 (also in the 19th).
- 93210
- 93426
- 93450
- 93451
- 93901
- 93905
- 93906
- 93907
- 93908
- 93920
View all 58 ZIP codes in this district
- 93210
- 93426
- 93450
- 93451
- 93901
- 93905
- 93906
- 93907
- 93908
- 93920
- 93923
- 93924
- 93925
- 93926
- 93927
- 93928
- 93930
- 93932
- 93940
- 93954
- 93960
- 93962
- 94550
- 95003
- 95004
- 95012
- 95013
- 95019
- 95020
- 95023
- 95033
- 95035
- 95037
- 95039
- 95043
- 95045
- 95046
- 95050
- 95053
- 95075
- 95076
- 95110
- 95111
- 95112
- 95113
- 95116
- 95122
- 95125
- 95126
- 95127
- 95128
- 95131
- 95132
- 95133
- 95135
- 95138
- 95140
- 95148
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: Adam B. Schiff (D), Alex Padilla (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.
Last updated September 3, 2026.
Data last checked September 7, 2026.
See how this district compares with another using Compare Districts.