1,055,159 people (2024 Census estimate, +5.7% since 2020)
763 square miles of land · 1,384 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.
21 active community water systems list Duval County in the area they serve, reporting 932,353 people served in all (a system that crosses county lines counts its whole population).
| JEA MAJOR GRID groundwater · local government · FL2161328 | 826,664 served |
| ATLANTIC BEACH WATER SYSTEM groundwater · local government · FL2160200 | 23,503 served |
| JACKSONVILLE BEACH WTP groundwater · local government · FL2160563 | 23,352 served |
| N.A.S. JACKSONVILLE groundwater · federal · FL2161212 | 22,000 served |
| N.S. MAYPORT groundwater · federal · FL2160734 | 20,500 served |
| NEPTUNE BEACH groundwater · local government · FL2160206 | 7,270 served |
| JACKSONVILLE UNIVERSITY groundwater · public/private · FL2160568 | 3,480 served |
| BALDWIN WATER SYSTEM groundwater · local government · FL2160053 | 1,790 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 2,975 people were held in Duval County's jail, in Vera's latest figure (2026). In 2021 it was about 3,775.
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.
1 school district has its office in Duval County. School taxes are usually the largest part of a property tax bill.
Spent $1.7 billion — $1.5 billion to run schools, about $11,670 per student, plus $170 million on buildings and equipment. Money in: $722.7 million local (mostly property tax), $662.3 million state, $365.6 million federal. Long-term debt: $349.7 million.
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 Duval County about $263.9 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
829 bridges in Duval County: 520 in good condition, 295 fair, and 14 poor (1.7%). “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.
| I-95 (SR-9) over 13th ST. · built 1959 | 128,500 vehicles a day |
| I-95 (SR-9) over SWEETWATER CREEK · built 1966 | 100,362 vehicles a day |
| I-295 (SR-9A) over DRAINAGE DITCH · built 2004 | 100,000 vehicles a day |
| I-95 SB (SR-9) over NASSAU RIVER · built 1967 | 45,000 vehicles a day |
| I-95 NB (SR-9) over NASSAU RIVER · built 1967 | 45,000 vehicles a day |
| SR-134 (103rd ST.) over ORTEGA CREEK · built 1983 | 44,500 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $438.6 million of work in Duval County in fiscal 2025, about $441 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. Last day to register to vote: 2026-10-05. Vote-by-mail request due by 5 pm: 2026-10-22. Early voting — the statewide minimum: 2026-10-24 to 2026-10-31. Election Day — and mail ballots must arrive: 2026-11-03.
Source: Florida Division of Elections — election dates · WPTV, 2026 deadlines · Florida Division of Elections — early voting
The budget, property tax rates, audits, local officials and offices for Duval 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 Duval County built: brayden.ozark@gmail.com.
More of Florida: the state government and every county in Florida.
Nearby counties: Nassau County (20 mi) · Clay County (27 mi) · St. Johns County (34 mi) · Baker County (39 mi) · Camden County, GA (40 mi) · Bradford County (41 mi).