752,202 people (2024 Census estimate, −0.7% since 2020)
657 square miles of land · 1,145 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.
5 active community water systems list Monroe County in the area they serve, reporting 769,151 people served in all (a system that crosses county lines counts its whole population).
| MCWA surface water · public/private · NY2701047 | 525,262 served |
| ROCHESTER CITY surface water · local government · NY2704518 | 210,000 served |
| BROCKPORT VILLAGE buys surface water · local government · NY2701039 | 25,918 served |
| SEA BREEZE WD buys surface water · local government · NY2701118 | 7,800 served |
| OCFS INDUSTRY RESIDENTIAL CENTER buys surface water · state · NY2701993 | 171 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 752 people were held in Monroe County's jail, in Vera's latest figure (2026). In 2021 it was about 737.
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.
18 school districts have their office in Monroe County. School taxes are usually the largest part of a property tax bill.
Spent $1 billion — $890 million to run schools, about $39,000 per student, plus $27.8 million on buildings and equipment. Money in: $137.8 million local (mostly property tax), $744.6 million state, $209.6 million federal. Long-term debt: $548.3 million.
Spent $303.1 million — $258 million to run schools, about $25,188 per student, plus $23.4 million on buildings and equipment. Money in: $130.4 million local (mostly property tax), $151.6 million state, $26.3 million federal. Long-term debt: $147.1 million.
Spent $218.8 million — $186 million to run schools, about $23,043 per student, plus $21 million on buildings and equipment. Money in: $130.3 million local (mostly property tax), $74.8 million state, $14.8 million federal. Long-term debt: $59.5 million.
Spent $177.5 million — $138.3 million to run schools, about $24,617 per student, plus $11.1 million on buildings and equipment. Money in: $101.6 million local (mostly property tax), $59 million state, $12.6 million federal. Long-term debt: $6.8 million.
Spent $163.7 million — $138 million to run schools, about $24,875 per student, plus $6.8 million on buildings and equipment. Money in: $123.5 million local (mostly property tax), $34.9 million state, $4.7 million federal. Long-term debt: $45 million.
Spent $172.5 million — $135.7 million to run schools, about $25,014 per student, plus $26.4 million on buildings and equipment. Money in: $90.4 million local (mostly property tax), $54.7 million state, $8.4 million federal. Long-term debt: $38 million.
Spent $114.4 million — $100.1 million to run schools, about $21,389 per student, plus $4.9 million on buildings and equipment. Money in: $72.7 million local (mostly property tax), $44.4 million state, $4.8 million federal. Long-term debt: $13.3 million.
Spent $105.1 million — $89.7 million to run schools, about $21,292 per student, plus $6 million on buildings and equipment. Money in: $46.5 million local (mostly property tax), $52.3 million state, $6.1 million federal. Long-term debt: $39.7 million.
And 10 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 Moderate compared with other U.S. counties. FEMA estimates natural hazards cost Monroe County about $141 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
616 bridges in Monroe County: 170 in good condition, 356 fair, and 90 poor (14.6%). “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 590 over RTE 286 · built 1960 | 97,989 vehicles a day |
| RTE I490 over BROWN STREET · built 1971 | 97,634 vehicles a day |
| RTE I490 over CSX CHARLOTTE BRANCH · built 1971 | 93,255 vehicles a day |
| RTE 590 over RTE 404 · built 1957 | 90,523 vehicles a day |
| RTE I490 over RTE I390 · built 1963 | 52,981 vehicles a day |
| RTE 104 over HUDSON AVENUE · built 1969 | 52,637 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $553.1 million of work in Monroe County in fiscal 2025, about $728 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 Monroe 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 Monroe County built: brayden.ozark@gmail.com.
More of New York: the state government and every county in New York.
Nearby counties: Orleans County (26 mi) · Genesee County (30 mi) · Wayne County (33 mi) · Ontario County (34 mi) · Livingston County (36 mi) · Wyoming County (46 mi).