Menu
Summary
Analysis & Demographics
Voter Metrics Census Data Ideology Analysis Overlapping Districts
Results & Analysis
Statewide Elections Precinct-Level Map Precinct Analysis
Sign In Subscribe Help
LocalBallotBook Logo
Counties: Colusa County / Lake County / Napa County / Placer County / Sacramento County / Sonoma County / Sutter County / Yolo County / Yuba County

4th Congressional District (2026)

These maps go into effect starting with the 2026 election cycle, following the passage of Proposition 50. View 2022 4th Congressional District.
Counties: Colusa County / Lake County / Napa County / Placer County / Sacramento County / Sonoma County / Sutter County / Yolo County / Yuba County

4th Congressional District (2026)

These maps go into effect starting with the 2026 election cycle, following the passage of Proposition 50. View 2022 4th Congressional District.
See the full picture with a subscription

Get complete access to exact numbers, detailed analysis, and comprehensive data for jurisdictions across California. Pick the plan that fits your work.

For Campaigns For Local Government For Sacramento Professionals
District Overlaps
Population-based overlap analysis
Help
How to read these tables:
  • % of 4th Congressional District (2026): what portion of 4th Congressional District (2026)’s population is in each overlapping jurisdiction/district
  • % of District: what portion of a jurisdiction/district's population is in 4th Congressional District (2026)

Name % of 4th Congressional District (2026) % of District
Colusa County ~XXX ~XXX
Lake County ~XXX ~XXX
Napa County ~XXX ~XXX
Placer County ~XXX ~XXX
Sacramento County ~XXX ~XXX
Sonoma County ~XXX ~XXX
Sutter County ~XXX ~XXX
Yolo County ~XXX ~XXX
Yuba County ~XXX ~XXX

Name % of 4th Congressional District (2026) % of District
City of American Canyon ~XXX ~XXX
City of Calistoga ~XXX ~XXX
City of Colusa ~XXX ~XXX
City of Cotati ~XXX ~XXX
City of Davis ~XXX ~XXX
City of Davis - District 1 ~XXX ~XXX
City of Davis - District 2 ~XXX ~XXX
City of Davis - District 3 ~XXX ~XXX
City of Davis - District 4 ~XXX ~XXX
City of Davis - District 5 ~XXX ~XXX
City of Lincoln ~XXX ~XXX
City of Lincoln - District 1 ~XXX ~XXX
City of Lincoln - District 2 ~XXX ~XXX
City of Lincoln - District 3 ~XXX ~XXX
City of Lincoln - District 4 ~XXX ~XXX
City of Lincoln - District 5 ~XXX ~XXX
City of Live Oak ~XXX ~XXX
City of Marysville ~XXX ~XXX
City of Napa ~XXX ~XXX
City of Napa - District 1 ~XXX ~XXX
City of Napa - District 2 ~XXX ~XXX
City of Napa - District 3 ~XXX ~XXX
City of Napa - District 4 ~XXX ~XXX
City of Petaluma ~XXX ~XXX
City of Petaluma - District 1 ~XXX ~XXX
City of Petaluma - District 2 ~XXX ~XXX
City of Petaluma - District 3 ~XXX ~XXX
City of Petaluma - District 4 ~XXX ~XXX
City of Rohnert Park ~XXX ~XXX
City of Rohnert Park - District 1 ~XXX ~XXX
City of Rohnert Park - District 2 ~XXX ~XXX
City of Rohnert Park - District 3 ~XXX ~XXX
City of Rohnert Park - District 4 ~XXX ~XXX
City of Rohnert Park - District 5 ~XXX ~XXX
City of Sonoma ~XXX ~XXX
City of St. Helena ~XXX ~XXX
City of Wheatland ~XXX ~XXX
City of Williams ~XXX ~XXX
City of Winters ~XXX ~XXX
City of Woodland ~XXX ~XXX
City of Woodland - District 1 ~XXX ~XXX
City of Woodland - District 2 ~XXX ~XXX
City of Woodland - District 3 ~XXX ~XXX
City of Woodland - District 4 ~XXX ~XXX
City of Woodland - District 5 ~XXX ~XXX
City of Yountville ~XXX ~XXX
City of Yuba City ~XXX ~XXX
City of Yuba City - District 1 ~XXX ~XXX
City of Yuba City - District 2 ~XXX ~XXX
City of Yuba City - District 3 ~XXX ~XXX
City of Yuba City - District 4 ~XXX ~XXX
City of Yuba City - District 5 ~XXX ~XXX

District % of 4th Congressional District (2026) % of District
12th Assembly District ~XXX ~XXX
3rd Assembly District ~XXX ~XXX
4th Assembly District ~XXX ~XXX
5th Assembly District ~XXX ~XXX
6th Assembly District ~XXX ~XXX

District % of 4th Congressional District (2026) % of District
1st State Senate District ~XXX ~XXX
2nd State Senate District ~XXX ~XXX
3rd State Senate District ~XXX ~XXX
6th State Senate District ~XXX ~XXX
8th State Senate District ~XXX ~XXX

District % of 4th Congressional District (2026) % of District
1st Congressional District (2022) ~XXX ~XXX
2nd Congressional District (2022) ~XXX ~XXX
3rd Congressional District (2022) ~XXX ~XXX
4th Congressional District (2022) ~XXX ~XXX
6th Congressional District (2022) ~XXX ~XXX

District % of 4th Congressional District (2026) % of District
1st Board of Equalization District ~XXX ~XXX
2nd Board of Equalization District ~XXX ~XXX

District % of 4th Congressional District (2026) % of District
Bellevue Union ~XXX ~XXX
Bennett Valley Union Elementary ~XXX ~XXX
Brittan Elementary ~XXX ~XXX
Browns Elementary ~XXX ~XXX
Calistoga Joint Unified ~XXX ~XXX
Camptonville Elementary ~XXX ~XXX
Center Joint Unified ~XXX ~XXX
Cinnabar Elementary ~XXX ~XXX
Colusa Unified ~XXX ~XXX
Cotati-Rohnert Park Unified ~XXX ~XXX
Cotati-Rohnert Park Unified - District 1 ~XXX ~XXX
Cotati-Rohnert Park Unified - District 2 ~XXX ~XXX
Cotati-Rohnert Park Unified - District 3 ~XXX ~XXX
Cotati-Rohnert Park Unified - District 4 ~XXX ~XXX
Cotati-Rohnert Park Unified - District 5 ~XXX ~XXX
Davis Joint Unified ~XXX ~XXX
Davis Joint Unified - District 1 ~XXX ~XXX
Davis Joint Unified - District 2 ~XXX ~XXX
Davis Joint Unified - District 3 ~XXX ~XXX
Davis Joint Unified - District 4 ~XXX ~XXX
Davis Joint Unified - District 5 ~XXX ~XXX
Dry Creek Joint Elementary ~XXX ~XXX
Dunham Elementary ~XXX ~XXX
East Nicolaus Joint Union High ~XXX ~XXX
Elverta Joint Elementary ~XXX ~XXX
Esparto Unified ~XXX ~XXX
Esparto Unified - District 1 ~XXX ~XXX
Esparto Unified - District 2 ~XXX ~XXX
Esparto Unified - District 3 ~XXX ~XXX
Esparto Unified - District 4 ~XXX ~XXX
Esparto Unified - District 5 ~XXX ~XXX
Franklin Elementary ~XXX ~XXX
Gravenstein Union Elementary ~XXX ~XXX
Howell Mountain Elementary ~XXX ~XXX
Kenwood ~XXX ~XXX
Konocti Unified ~XXX ~XXX
Liberty Elementary ~XXX ~XXX
Live Oak Unified ~XXX ~XXX
Marcum-Illinois Union Elementary ~XXX ~XXX
Marysville Joint Unified ~XXX ~XXX
Marysville Joint Unified - District 1 ~XXX ~XXX
Marysville Joint Unified - District 2 ~XXX ~XXX
Marysville Joint Unified - District 3 ~XXX ~XXX
Marysville Joint Unified - District 4 ~XXX ~XXX
Maxwell Unified ~XXX ~XXX
Meridian Elementary ~XXX ~XXX
Middletown Unified ~XXX ~XXX
Napa Valley Unified ~XXX ~XXX
Napa Valley Unified - District 1 ~XXX ~XXX
Napa Valley Unified - District 2 ~XXX ~XXX
Napa Valley Unified - District 3 ~XXX ~XXX
Napa Valley Unified - District 4 ~XXX ~XXX
Napa Valley Unified - District 5 ~XXX ~XXX
Napa Valley Unified - District 6 ~XXX ~XXX
Napa Valley Unified - District 7 ~XXX ~XXX
Nuestro Elementary ~XXX ~XXX
Old Adobe Union ~XXX ~XXX
Petaluma City Elementary ~XXX ~XXX
Petaluma Joint Union High ~XXX ~XXX
Petaluma Joint Union High - District 1 ~XXX ~XXX
Petaluma Joint Union High - District 2 ~XXX ~XXX
Petaluma Joint Union High - District 3 ~XXX ~XXX
Petaluma Joint Union High - District 5 ~XXX ~XXX
Pierce Joint Unified ~XXX ~XXX
Pleasant Grove Joint Union ~XXX ~XXX
Plumas Lake Elementary ~XXX ~XXX
Pope Valley Union Elementary ~XXX ~XXX
Princeton Joint Unified ~XXX ~XXX
Rincon Valley Union Elementary ~XXX ~XXX
Rincon Valley Union Elementary - District 5 ~XXX ~XXX
Roseville Joint Union High ~XXX ~XXX
Roseville Joint Union High - District 1 ~XXX ~XXX
Saint Helena Unified ~XXX ~XXX
Santa Rosa High ~XXX ~XXX
Santa Rosa High - District 4 ~XXX ~XXX
Santa Rosa High - District 5 ~XXX ~XXX
Santa Rosa High - District 6 ~XXX ~XXX
Santa Rosa High - District 7 ~XXX ~XXX
Sonoma Valley Unified ~XXX ~XXX
Sonoma Valley Unified - District 1 ~XXX ~XXX
Sonoma Valley Unified - District 2 ~XXX ~XXX
Sonoma Valley Unified - District 3 ~XXX ~XXX
Sonoma Valley Unified - District 4 ~XXX ~XXX
Sonoma Valley Unified - District 5 ~XXX ~XXX
Stony Creek Joint Unified ~XXX ~XXX
Stony Creek Joint Unified - District 4 ~XXX ~XXX
Stony Creek Joint Unified - District 5 ~XXX ~XXX
Sutter Union High ~XXX ~XXX
Twin Rivers Unified ~XXX ~XXX
Twin Rivers Unified - District 4 ~XXX ~XXX
Waugh Elementary ~XXX ~XXX
Western Placer Unified ~XXX ~XXX
Western Placer Unified - District 1 ~XXX ~XXX
Western Placer Unified - District 2 ~XXX ~XXX
Western Placer Unified - District 3 ~XXX ~XXX
Western Placer Unified - District 4 ~XXX ~XXX
Western Placer Unified - District 5 ~XXX ~XXX
Wheatland ~XXX ~XXX
Wheatland Union High ~XXX ~XXX
Williams Unified ~XXX ~XXX
Winship-Robbins ~XXX ~XXX
Winters Joint Unified ~XXX ~XXX
Winters Joint Unified - District 1 ~XXX ~XXX
Winters Joint Unified - District 2 ~XXX ~XXX
Winters Joint Unified - District 3 ~XXX ~XXX
Winters Joint Unified - District 4 ~XXX ~XXX
Winters Joint Unified - District 5 ~XXX ~XXX
Woodland Joint Unified ~XXX ~XXX
Woodland Joint Unified - District 1 ~XXX ~XXX
Woodland Joint Unified - District 2 ~XXX ~XXX
Woodland Joint Unified - District 3 ~XXX ~XXX
Woodland Joint Unified - District 4 ~XXX ~XXX
Woodland Joint Unified - District 5 ~XXX ~XXX
Woodland Joint Unified - District 6 ~XXX ~XXX
Woodland Joint Unified - District 7 ~XXX ~XXX
Yuba City Unified ~XXX ~XXX
Yuba City Unified - District 1 ~XXX ~XXX
Yuba City Unified - District 2 ~XXX ~XXX
Yuba City Unified - District 3 ~XXX ~XXX
Yuba City Unified - District 4 ~XXX ~XXX
Yuba City Unified - District 5 ~XXX ~XXX
Yuba City Unified - District 6 ~XXX ~XXX
Yuba City Unified - District 7 ~XXX ~XXX

District % of 4th Congressional District (2026) % of District
Colusa County Board of Education ~XXX ~XXX
Colusa County Board of Education - District 1 ~XXX ~XXX
Colusa County Board of Education - District 2 ~XXX ~XXX
Colusa County Board of Education - District 3 ~XXX ~XXX
Colusa County Board of Education - District 4 ~XXX ~XXX
Colusa County Board of Education - District 5 ~XXX ~XXX
Lake County Board of Education ~XXX ~XXX
Lake County Board of Education - District 1 ~XXX ~XXX
Lake County Board of Education - District 5 ~XXX ~XXX
Napa County Board of Education ~XXX ~XXX
Napa County Board of Education - District 1 ~XXX ~XXX
Napa County Board of Education - District 2 ~XXX ~XXX
Napa County Board of Education - District 3 ~XXX ~XXX
Napa County Board of Education - District 4 ~XXX ~XXX
Napa County Board of Education - District 5 ~XXX ~XXX
Napa County Board of Education - District 6 ~XXX ~XXX
Napa County Board of Education - District 7 ~XXX ~XXX
Placer County Board of Education ~XXX ~XXX
Placer County Board of Education - District 2 ~XXX ~XXX
Placer County Board of Education - District 5 ~XXX ~XXX
Sacramento County Board of Education ~XXX ~XXX
Sacramento County Board of Education - District 2 ~XXX ~XXX
Sonoma County Board of Education ~XXX ~XXX
Sonoma County Board of Education - District 1 ~XXX ~XXX
Sonoma County Board of Education - District 2 ~XXX ~XXX
Sonoma County Board of Education - District 3 ~XXX ~XXX
Sutter County Board of Education ~XXX ~XXX
Sutter County Board of Education - District 1 ~XXX ~XXX
Sutter County Board of Education - District 2 ~XXX ~XXX
Sutter County Board of Education - District 3 ~XXX ~XXX
Sutter County Board of Education - District 4 ~XXX ~XXX
Sutter County Board of Education - District 5 ~XXX ~XXX
Yolo County Board of Education ~XXX ~XXX
Yolo County Board of Education - District 2 ~XXX ~XXX
Yolo County Board of Education - District 3 ~XXX ~XXX
Yolo County Board of Education - District 4 ~XXX ~XXX
Yolo County Board of Education - District 5 ~XXX ~XXX
Yuba County Board of Education ~XXX ~XXX
Yuba County Board of Education - District 1 ~XXX ~XXX
Yuba County Board of Education - District 2 ~XXX ~XXX
Yuba County Board of Education - District 3 ~XXX ~XXX
Yuba County Board of Education - District 4 ~XXX ~XXX
Yuba County Board of Education - District 5 ~XXX ~XXX