County
Riverside County
Riverside County connects countywide government and elections to five supervisorial districts, which provide the next browsing layer for cities and communities.
Browse county districts
Data coverage
StateCalifornia
CountyRiverside County
i
U.S. Census Bureau TIGER/Line · county boundary shown without internal roads.
Community and civic data
Riverside County stats
Formed in 1893, Riverside County is governed by a five-member Board of Supervisors and provides countywide and unincorporated-area services across more than 7,200 square miles.
Current voter makeup
1,436,557 registered voters
38.1% Democratic
32.0% Republican
21.7% No party preference
8.2% Other parties
Approximate registrants
Calculated from the rounded shares above
≈547,300
Democratic
≈459,700
Republican
≈311,700
No party preference
≈117,800
Other parties
Largest group
38.1%
Democratic
Democratic–Republican gap
6.1 pts
38.1% to 32.0%
Outside two largest parties
29.9%
No party preference + other
Community snapshot
Race and ethnicity
Community indicators
2020–2024 estimates unless noted
5.2%Population growth, 2020–2025
69.1%Owner-occupied housing
42.4%Language other than English at home
$93,074Median household income
Race categories can overlap; Hispanic or Latino residents may be of any race.
U.S. Census Bureau QuickFacts →County responsibilities
Services
Learn what the county is responsible for, which public office provides each service, and how county work connects with state and local government.
How service delivery works
Who is responsible?
Service directory
What Riverside County provides
Public oversight Accountability and public records
How accountability works
Current elections
November 3rd, 2026 Riverside County election
November 3rd, 2026 Riverside County election: colored cards have a race in this election. Grey cards do not.
Race in this election
No race in this election
Loading countywide election pages…
Past elections Browse completed Riverside County elections
June 2, 2026 Primary Election: colored cards had a race in this election. Grey cards did not.
Race in selected election
No race in selected election
Loading past county election pages…
Public meetings
Board of Supervisors meetings
Upcoming agendas, recorded decisions and the official sources behind them.
Loading meeting records…
County government
Boards and commissions
Explore selected public bodies, what they oversee, how they are constituted, and who currently serves on them.
Loading county boards and commissions…
County directory
Loading county boards and commissions…
Special Districts
Special Districts serving Riverside County
Independent local governments providing focused public services are kept separate from the county's geographic browsing hierarchy.
Loading special districts…
Riverside LAFCO inventory
Loading special districts…
Local reporting
News about Riverside County
These stories are sourced from local newsrooms. Please click through to visit and support local journalism.
Loading Riverside County stories…
Documentation and limits
Sources
Official records and reference sources used for this page, together with the current completeness assessment.
Current assessment
Developing coverage
Municipal records are available, while school, special-district, and overlapping representation layers remain incomplete.
Assessed August 8, 2026
Sources used on this page
Loading sources…
Loading source details…