Congressional district · Boundaries of the 119th Congress
California's 18th district
California's 18th district has 740,763 residents on 4,573 mi² of land. It is represented by Zoe Lofgren (D-CA-18). Federal contract obligations attributed to it reached $360.8M in FY2026.
- Residents
- 740,763
- Land area
- 4,573 mi²
- Counties
- 4
- Representative
- Zoe Lofgren
Members for this district
Members who held this seat while these boundaries were in force, newest first.
Senators
The state's senators today, or on the last day of these boundaries for an older plan.
Adam B. SchiffD-CA
Alex PadillaD-CA
Counties
Share of the district's residents living in each county, and share of the county's residents living in the district (2020 census tracts weighted by their overlap).
- Santa Clara County46% of the district · 18% of the county
- Monterey County36% of the district · 61% of the county
- San Benito County9.1% of the district · 100% of the county
- Santa Cruz County8.8% of the district · 25% of the county
Federal contracts
Contract obligations attributed to the district by each action's county and its award's ZIP code (land shares through census tracts); an estimate where ZIP codes cross district lines.
- Obligations · FY2026
- $360.8M
- Per resident
- $487
- Rank in California
- 36 of 52
- Contract actions
- 2,213
- New awards: 824
By fiscal year
- 320.5MFY2017
- 349.6MFY2018
- 399.7MFY2019
- 557.4MFY2020
- 391.5MFY2021
- 448.7MFY2022
- 427.2MFY2023
- 437.5MFY2024
- 487.3MFY2025
- 360.8MFY2026
Top buyers
- Department of the Air Force$86.9M24%Department of Defense
- Department of Energy$50.8M14%
- Federal Aviation Administration$50.4M14%Department of Transportation
- Department of the Army$35.5M9.8%Department of Defense
- Federal Acquisition Service$31.8M8.8%General Services Administration
- Department of Labor
- Department of the Navy$12.8M3.6%Department of Defense
Top recipients
- 31 awards
- 1 award
- STRONGHOLD ENGINEERING INC$49.9M14%1 award
- CAREER SYSTEMS DEVELOPMENT CORPORATION$15.6M4.3%1 award
- 1 award
- R4 INTEGRATION INC$12.3M3.4%2 awards
- 1 award
- INUTEQ, LLC$11.9M3.3%17 awards
- PD SYSTEMS, LLC$9.7M2.7%1 award
- CA DEPT OF REHABILITATION$8.5M2.3%3 awards
Other boundaries
District lines change between plans; each plan keeps its own page.
Sources and method
Every figure on this page traces to these records.
- Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
- Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
- ZIP code (ZCTA) to congressional district crosswalk (U.S. Census Bureau)U.S. Census Bureau, 2020 relationship files (ZCTAs, tracts and congressional districts); shares computed by Analisa · release 2020 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
- Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
- Money and votes are shown side by side; neither explains the other.