835,427 people (2024 Census estimate, −1.0% since 2020)
1,841 square miles of land · 454 people per square mile
“Highest” and “lowest” are just order, not grades: a high rank for poverty or hazard losses means more of it. Each figure's source is in its section below.
68 active community water systems list Ventura County in the area they serve, reporting 865,135 people served in all (a system that crosses county lines counts its whole population).
| OXNARD WATER DEPT buys surface water · local government · CA5610007 | 200,232 served |
| VENTURA WATER DEPARTMENT surface water · local government · CA5610017 | 112,285 served |
| VENTURA WWD NO. 8 - SIMI VALLEY buys surface water · local government · CA5610023 | 94,736 served |
| CAL AMERICAN WATER CO buys surface water · private · CA5610040 | 66,809 served |
| CITY OF THOUSAND OAKS WATER DEPARTMENT buys surface water · local government · CA5610020 | 54,770 served |
| CAMARILLO WATER DEPT buys surface water · local government · CA5610019 | 47,701 served |
| GOLDEN STATE WATER COMPANY - SIMI VALLEY buys surface water · private · CA5610059 | 45,086 served |
| VENTURA CWWD NO. 1 - MOORPARK buys surface water · local government · CA5610018 | 35,514 served |
Source: U.S. EPA Safe Drinking Water Information System (SDWIS), active community systems, . Look up any system's violations and test results with EPA's search using its ID.
About 1,197 people were held in Ventura County's jail, in Vera's latest figure (2025). In 2020 it was about 1,277.
Source: Vera Institute of Justice, Incarceration Trends (built from federal Bureau of Justice Statistics jail surveys). Counties without their own jail, or that share one, may show no figure.
20 school districts have their office in Ventura County. School taxes are usually the largest part of a property tax bill.
Spent $465.8 million — $299.4 million to run schools, about $17,674 per student, plus $141.3 million on buildings and equipment. Money in: $132.6 million local (mostly property tax), $231.3 million state, $37.5 million federal. Long-term debt: $412.1 million.
Spent $294.6 million — $263.1 million to run schools, about $16,093 per student, plus $15.8 million on buildings and equipment. Money in: $173.3 million local (mostly property tax), $115.7 million state, $19.3 million federal. Long-term debt: $151.5 million.
Spent $302.3 million — $244 million to run schools, about $15,349 per student, plus $39.6 million on buildings and equipment. Money in: $119.1 million local (mostly property tax), $162 million state, $19.6 million federal. Long-term debt: $293.8 million.
Spent $269.6 million — $248.8 million to run schools, about $16,607 per student, plus $8.1 million on buildings and equipment. Money in: $112 million local (mostly property tax), $165.6 million state, $23.4 million federal. Long-term debt: $37.3 million.
Spent $317.8 million — $274.5 million to run schools, about $19,370 per student, plus $32 million on buildings and equipment. Money in: $73.8 million local (mostly property tax), $268.4 million state, $36.1 million federal. Long-term debt: $278.9 million.
Spent $165.3 million — $146 million to run schools, about $20,454 per student, plus $13.1 million on buildings and equipment. Money in: $25.7 million local (mostly property tax), $132.1 million state, $18.2 million federal. Long-term debt: $59.2 million.
Spent $89.5 million — $81.4 million to run schools, about $13,979 per student, plus $2.8 million on buildings and equipment. Money in: $39.2 million local (mostly property tax), $60.7 million state, $5.7 million federal. Long-term debt: $77.4 million.
Spent $110.2 million — $83.4 million to run schools, about $14,358 per student, plus $14.8 million on buildings and equipment. Money in: $48.4 million local (mostly property tax), $52.4 million state, $10.3 million federal. Long-term debt: $109.9 million.
And 12 more.
Source: U.S. Census Bureau, 2023 Annual Survey of School System Finances. Districts are listed by the county of their main office; some serve neighboring counties too.
Source: County Health Rankings & Roadmaps 2025 (University of Wisconsin Population Health Institute), which gathers federal data (CDC, Census, and others); measures cover different recent years. Blank lines aren't reported for small counties.
Overall risk: Relatively High compared with other U.S. counties. FEMA estimates natural hazards cost Ventura County about $762.2 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Low; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
501 bridges in Ventura County: 288 in good condition, 201 fair, and 12 poor (2.4%). “Poor” means a main part — the deck, the beams, or the supports — is rated 4 or lower on the federal 0–9 scale. It doesn't mean unsafe to drive; unsafe bridges are closed.
| MADERA ROAD over UP RR AMTRAK METROLINK · built 1981 | 33,000 vehicles a day |
| STATE ROUTE 126 over POLE CREEK · built 1981 | 30,000 vehicles a day |
| MADERA ROAD over ARROYO SIMI · built 1979 | 30,000 vehicles a day |
| STATE ROUTE 126 over ELLSWORTH BARRANCA · built 1965 | 25,000 vehicles a day |
| 1ST STREET over ARROYO SIMI · built 1971 | 22,500 vehicles a day |
| STATE ROUTE 33 over SAN ANTONIO CREEK · built 1936 | 20,500 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $192.4 million of work in Ventura County in fiscal 2025, about $228 per resident — to the county, cities, schools, hospitals, nonprofits and others.
Source: USAspending.gov, grants by place of performance, fiscal 2025 (Oct. 2024 to Sept. 2025). Search it by county to see each award.
From Grants.gov: posted grants listing county governments as eligible, soonest deadline first; research-only and overseas programs left out; list updated 2026-10-13, refreshed weekly. 62 are open in all. Cities, towns, school districts and nonprofits have their own lists there.
General election: Tuesday, November 3, 2026. Ballots mailed; drop boxes open: 2026-10-05. Last day to register to vote: 2026-10-19. Early in-person voting: 2026-10-24 to 2026-11-03. Election Day: 2026-11-03. Last day for mailed ballots to arrive: 2026-11-10.
Source: California Secretary of State — Nov. 3, 2026 key dates · California Official Voter Information Guide — dates to remember · California Secretary of State — make a plan to vote
The budget, property tax rates, audits, local officials and offices for Ventura County come from the county's own records, which we haven't gathered — not gathered, never hidden. See what a full county site looks like, or ask to have Ventura County built: brayden.ozark@gmail.com.
More of California: the state government and every county in California.
Nearby counties: Los Angeles County (51 mi) · Santa Barbara County (53 mi) · Kern County (72 mi) · Orange County (90 mi) · San Luis Obispo County (103 mi) · Kings County (124 mi).