5,082 people (2024 Census estimate, +0.2% since 2020)
1,717 square miles of land · 3 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.
7 active community water systems list Hamilton County in the area they serve, reporting 4,728 people served in all (a system that crosses county lines counts its whole population).
| SPECULATOR V groundwater · local government · NY2004501 | 2,008 served |
| INDIAN LAKE WD groundwater · local government · NY2000126 | 900 served |
| LONG LAKE WD surface water · local government · NY2000129 | 800 served |
| WELLS WD groundwater · local government · NY2000131 | 450 served |
| BLUE MT LAKE WD surface water · local government · NY2000135 | 400 served |
| RAQUETTE LAKE WD groundwater · local government · NY2000130 | 90 served |
| ROCKY POINT HOMEOWNERS ASSN groundwater · private · NY2022252 | 80 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 people were held in Hamilton County's jail, in Vera's latest figure (2026). In 2021 it was about 2.
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.
4 school districts have their office in Hamilton County. School taxes are usually the largest part of a property tax bill.
Spent $7.9 million — $5.8 million to run schools, about $42,867 per student, plus $103,000 on buildings and equipment. Money in: $4.6 million local (mostly property tax), $1.7 million state, $385,000 federal.
Spent $7.1 million — $6.2 million to run schools, about $48,383 per student, plus $745,000 on buildings and equipment. Money in: $5.8 million local (mostly property tax), $1 million state, $609,000 federal. Long-term debt: $2.5 million.
Spent $6.2 million — $4.2 million to run schools, about $56,959 per student, plus $1.4 million on buildings and equipment. Money in: $4.2 million local (mostly property tax), $773,000 state, $178,000 federal. Long-term debt: $4.8 million.
Spent $4.7 million — $4.3 million to run schools, about $73,492 per student, plus $293,000 on buildings and equipment. Money in: $3.4 million local (mostly property tax), $821,000 state, $433,000 federal. Long-term debt: $2.4 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Hamilton County about $5.5 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.
87 bridges in Hamilton County: 30 in good condition, 44 fair, and 13 poor (14.9%). “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 30 over BIG BROOK · built 1938 | 1,095 vehicles a day |
| RTE 10 over W BR SACANDAGA RIVER · built 1930 | 302 vehicles a day |
| BIG BROOK ROAD over BIG BROOK · built 1945 | 230 vehicles a day |
| CEDAR RIVER ROAD over BROWNS BROOK · built 1966 | 117 vehicles a day |
| OTTER BROOK ROAD over OTTER BROOK · built 1968 | 103 vehicles a day |
| OLD PISECO ROAD over MILL STREAM · built 1931 | 85 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $19.9 million of work in Hamilton County in fiscal 2025, about $3,896 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 Hamilton 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 Hamilton County built: brayden.ozark@gmail.com.
More of New York: the state government and every county in New York.
Nearby counties: Herkimer County (18 mi) · Warren County (34 mi) · Fulton County (38 mi) · Essex County (48 mi) · Lewis County (48 mi) · Saratoga County (50 mi).