1,384,724 people (2024 Census estimate, −5.1% since 2020)
42 square miles of land · 32,832 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.
1 active community water system list Bronx County in the area they serve, reporting 8,271,000 people served in all (a system that crosses county lines counts its whole population).
| NEW YORK CITY SYSTEM surface water · local government · NY7003493 | 8,271,000 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 1,031 people were held in Bronx County's jail, in Vera's latest figure (2024), or 117 per 100,000 residents ages 15–64. In 2019 it was about 2,090.
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.
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 Bronx County about $212.2 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Very High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
311 bridges in Bronx County: 49 in good condition, 236 fair, and 26 poor (8.4%). “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.
| RTE I95 over Pedestrian walkway and b · built 1958 | 145,579 vehicles a day |
| RTE I95 over Bronx River Ave. RAMP I · built 1951 | 141,112 vehicles a day |
| RTE 907H over EAST 180TH STREET MORRI · built 1951 | 112,038 vehicles a day |
| RTE 907H over E TREMONT AVENUE · built 1951 | 112,038 vehicles a day |
| RTE 907H over AMTRAK/CSXT/P&W · built 1951 | 112,038 vehicles a day |
| RTE I87 over ALEXANDER AVENUE · built 1960 | 105,993 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $2.2 billion of work in Bronx County in fiscal 2025, about $1,487 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.
Registration deadlines, early voting and polling places for New York are on the federal site vote.gov, which links to the state's official election office.
The budget, property tax rates, audits, local officials and offices for Bronx 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 Bronx County built: brayden.ozark@gmail.com.
More of New York: the state government and every county in New York.
Nearby counties: New York County (8 mi) · Queens County (13 mi) · Bergen County, NJ (14 mi) · Hudson County, NJ (14 mi) · Kings County (16 mi) · Nassau County (16 mi).