80,450 people (2024 Census estimate, +2.5% since 2020)
968 square miles of land · 83 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.
69 active community water systems list Sullivan County in the area they serve, reporting 51,903 people served in all (a system that crosses county lines counts its whole population).
| MONTICELLO VILLAGE surface water · local government · NY5203337 | 8,000 served |
| FALLSBURG WHO-LS-SF groundwater · local government · NY5203324 | 7,850 served |
| LIBERTY VILLAGE surface water · local government · NY5203329 | 3,900 served |
| STEVENSVILLE+RFL groundwater · local government · NY5211831 | 3,250 served |
| SWAN IN SWAN LAKE groundwater · private · NY5230273 | 2,900 served |
| EMERALD GREEN LAKE LOUISE MARIE WC surface water · private · NY5203346 | 2,400 served |
| LIVINGSTON MANOR WD groundwater · local government · NY5203330 | 1,500 served |
| WURTSBORO VILLAGE groundwater · local government · NY5203352 | 1,400 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 113 people were held in Sullivan County's jail, in Vera's latest figure (2026). In 2021 it was about 107.
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.
8 school districts have their office in Sullivan County. School taxes are usually the largest part of a property tax bill.
Spent $113 million — $95.1 million to run schools, about $32,938 per student, plus $12.9 million on buildings and equipment. Money in: $52.8 million local (mostly property tax), $48.9 million state, $9.3 million federal. Long-term debt: $905,000.
Spent $56.7 million — $54.2 million to run schools, about $29,026 per student, plus $186,000 on buildings and equipment. Money in: $20.4 million local (mostly property tax), $40.8 million state, $5.9 million federal. Long-term debt: $8.4 million.
Spent $54.9 million — $53.6 million to run schools, about $34,419 per student, plus $194,000 on buildings and equipment. Money in: $20.9 million local (mostly property tax), $31.3 million state, $5.9 million federal. Long-term debt: $17.2 million.
Spent $38.7 million — $35.5 million to run schools, about $32,965 per student, plus $1.5 million on buildings and equipment. Money in: $20.3 million local (mostly property tax), $18.7 million state, $2.8 million federal. Long-term debt: $6.3 million.
Spent $43.7 million — $34.3 million to run schools, about $37,150 per student, plus $4.7 million on buildings and equipment. Money in: $22 million local (mostly property tax), $13.5 million state, $2.8 million federal. Long-term debt: $5.1 million.
Spent $24.2 million — $18.7 million to run schools, about $38,299 per student, plus $3.4 million on buildings and equipment. Money in: $13.2 million local (mostly property tax), $6.9 million state, $1.5 million federal. Long-term debt: $3.1 million.
Spent $19 million — $18.4 million to run schools, about $43,314 per student, plus $198,000 on buildings and equipment. Money in: $11 million local (mostly property tax), $8.7 million state, $1.4 million federal.
Spent $12 million — $11.4 million to run schools, about $48,846 per student, plus $189,000 on buildings and equipment. Money in: $6.5 million local (mostly property tax), $4.9 million state, $571,000 federal. Long-term debt: $1.5 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 Low compared with other U.S. counties. FEMA estimates natural hazards cost Sullivan County about $36.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Moderate; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
365 bridges in Sullivan County: 108 in good condition, 230 fair, and 27 poor (7.4%). “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 52 over 17 17 96091178 RTE 17 · built 1956 | 15,138 vehicles a day |
| RTE 42 over NEVERSINK RIVER · built 1983 | 9,826 vehicles a day |
| RTE 209 over WILSEY BROOK · built 1956 | 6,304 vehicles a day |
| RTE 209 over PINE KILL · built 1928 | 3,645 vehicles a day |
| RTE 52 over NYS & W · built 1948 | 2,510 vehicles a day |
| RTE 17 over E BR CALLICOON CK · built 1950 | 1,867 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $33.6 million of work in Sullivan County in fiscal 2025, about $428 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 Sullivan 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 Sullivan County built: brayden.ozark@gmail.com.
More of New York: the state government and every county in New York.
Nearby counties: Wayne County, PA (27 mi) · Pike County, PA (30 mi) · Ulster County (30 mi) · Orange County (32 mi) · Delaware County (34 mi) · Sussex County, NJ (40 mi).