44,191 people (2024 Census estimate, −0.1% since 2020)
1,443 square miles of land · 31 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.
34 active community water systems list Delaware County in the area they serve, reporting 20,947 people served in all (a system that crosses county lines counts its whole population).
| DELHI VILLAGE groundwater · local government · NY1200257 | 3,833 served |
| SIDNEY VILLAGE groundwater · local government · NY1200270 | 3,800 served |
| WALTON VILLAGE groundwater · local government · NY1200274 | 3,010 served |
| STAMFORD VILLAGE surface water · local government · NY1200272 | 1,280 served |
| HANCOCK VILLAGE groundwater · local government · NY1200266 | 1,182 served |
| HOBART VILLAGE groundwater · local government · NY1200267 | 700 served |
| MARGARETVILLE VILLAGE groundwater · local government · NY1200268 | 650 served |
| DOWNSVILLE WATER DISTRICT groundwater (surface-influenced) · local government · NY1200258 | 617 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 71 people were held in Delaware County's jail, in Vera's latest figure (2026). In 2021 it was about 48.
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.
13 school districts have their office in Delaware County. School taxes are usually the largest part of a property tax bill.
Spent $31.4 million — $27.3 million to run schools, about $25,505 per student, plus $1.3 million on buildings and equipment. Money in: $7.4 million local (mostly property tax), $22.2 million state, $3.7 million federal. Long-term debt: $15.4 million.
Spent $28.5 million — $23 million to run schools, about $26,795 per student, plus $4.9 million on buildings and equipment. Money in: $7.5 million local (mostly property tax), $15.7 million state, $3.5 million federal. Long-term debt: $2.7 million.
Spent $23.1 million — $19.9 million to run schools, about $26,380 per student, plus $2 million on buildings and equipment. Money in: $10.5 million local (mostly property tax), $11.1 million state, $1.9 million federal. Long-term debt: $4.8 million.
Spent $25.1 million — $17.1 million to run schools, about $34,444 per student, plus $7.1 million on buildings and equipment. Money in: $9.2 million local (mostly property tax), $8.4 million state, $2 million federal. Long-term debt: $6.1 million.
Spent $13 million — $11.6 million to run schools, about $32,827 per student, plus $861,000 on buildings and equipment. Money in: $4 million local (mostly property tax), $6.8 million state, $2.4 million federal. Long-term debt: $7 million.
Spent $13.1 million — $12.3 million to run schools, about $36,713 per student, plus $382,000 on buildings and equipment. Money in: $7.8 million local (mostly property tax), $3.8 million state, $1.1 million federal. Long-term debt: $2.8 million.
Spent $11.3 million — $9.9 million to run schools, about $30,606 per student, plus $284,000 on buildings and equipment. Money in: $5.5 million local (mostly property tax), $6.1 million state, $998,000 federal. Long-term debt: $7.1 million.
Spent $14.1 million — $11.3 million to run schools, about $35,495 per student, plus $1.8 million on buildings and equipment. Money in: $5.3 million local (mostly property tax), $8.1 million state, $1.6 million federal. Long-term debt: $5.2 million.
And 5 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 Delaware County about $35.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Very High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
450 bridges in Delaware County: 129 in good condition, 296 fair, and 25 poor (5.6%). “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 23 over JUMP BROOK · built 1931 | 2,685 vehicles a day |
| RTE 28 over HONEST BROOK · built 1936 | 2,592 vehicles a day |
| RTE 30 over E BR DELAWARE RVR · built 1930 | 2,088 vehicles a day |
| RTE 10 over ELK CREEK · built 1936 | 1,997 vehicles a day |
| RTE 30 over HUBBELL HILL BRK · built 1958 | 1,725 vehicles a day |
| RTE 30 over BATAVIA CREEK · built 1933 | 1,725 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $44.3 million of work in Delaware County in fiscal 2025, about $1,001 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 Delaware 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 Delaware County built: brayden.ozark@gmail.com.
More of New York: the state government and every county in New York.
Nearby counties: Otsego County (30 mi) · Sullivan County (34 mi) · Chenango County (38 mi) · Schoharie County (38 mi) · Ulster County (40 mi) · Wayne County, PA (41 mi).