118,305 people (2024 Census estimate, +0.7% since 2020)
952 square miles of land · 124 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.
42 active community water systems list Oswego County in the area they serve, reporting 76,562 people served in all (a system that crosses county lines counts its whole population).
| OSWEGO CITY surface water · local government · NY3704361 | 29,400 served |
| FULTON CITY buys surface water · local government · NY3704355 | 16,600 served |
| SCRIBA WD (OSWEGO) buys surface water · local government · NY3730037 | 9,044 served |
| RICHLAND TOWN PWS groundwater · local government · NY3730165 | 3,950 served |
| PULASKI VILLAGE groundwater · local government · NY3704364 | 2,398 served |
| PHOENIX VILLAGE buys surface water · public/private · NY3704363 | 2,138 served |
| MEXICO VILLAGE groundwater · local government · NY3704359 | 2,100 served |
| HANNIBAL TOWN WATER DISTRICT #2 buys surface water · private · NY3730101 | 2,000 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 123 people were held in Oswego County's jail, in Vera's latest figure (2026). In 2021 it was about 122.
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.
9 school districts have their office in Oswego County. School taxes are usually the largest part of a property tax bill.
Spent $98.7 million — $87.6 million to run schools, about $24,096 per student, plus $3.4 million on buildings and equipment. Money in: $29 million local (mostly property tax), $59.8 million state, $9.1 million federal. Long-term debt: $48.8 million.
Spent $108.3 million — $94.9 million to run schools, about $26,855 per student, plus $8.3 million on buildings and equipment. Money in: $52.9 million local (mostly property tax), $50.1 million state, $10.9 million federal. Long-term debt: $24.8 million.
Spent $89.4 million — $82.1 million to run schools, about $25,879 per student, plus $4.2 million on buildings and equipment. Money in: $21.1 million local (mostly property tax), $60.7 million state, $9.3 million federal. Long-term debt: $14.2 million.
Spent $62.6 million — $55.9 million to run schools, about $26,909 per student, plus $2.2 million on buildings and equipment. Money in: $22.2 million local (mostly property tax), $37.2 million state, $5.2 million federal. Long-term debt: $47.1 million.
Spent $50.8 million — $42.7 million to run schools, about $25,411 per student, plus $2.4 million on buildings and equipment. Money in: $16.8 million local (mostly property tax), $36.9 million state, $4.3 million federal. Long-term debt: $54.2 million.
Spent $43 million — $31.7 million to run schools, about $25,814 per student, plus $1.5 million on buildings and equipment. Money in: $7.1 million local (mostly property tax), $30.9 million state, $4.4 million federal. Long-term debt: $31.3 million.
Spent $38.4 million — $33.7 million to run schools, about $30,250 per student, plus $3 million on buildings and equipment. Money in: $7.5 million local (mostly property tax), $27.9 million state, $4 million federal. Long-term debt: $7.5 million.
Spent $30.4 million — $26 million to run schools, about $26,858 per student, plus $785,000 on buildings and equipment. Money in: $8.1 million local (mostly property tax), $19.4 million state, $2.7 million federal. Long-term debt: $21.2 million.
And 1 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 Low compared with other U.S. counties. FEMA estimates natural hazards cost Oswego County about $26.6 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.
234 bridges in Oswego County: 68 in good condition, 134 fair, and 32 poor (13.7%). “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 I81 over ONEIDA LAKE · built 1959 | 16,277 vehicles a day |
| RTE 49 over BIG BAY CREEK · built 1941 | 10,186 vehicles a day |
| RTE I81 over HALSEY ROAD · built 1961 | 8,174 vehicles a day |
| RTE 69 over LITTLE SALMON RIVER · built 1934 | 2,613 vehicles a day |
| PHOENIX ROAD over FISH CREEK · built 2005 | 2,023 vehicles a day |
| GAYVILLE ROAD over SCRIBA CREEK · built 1950 | 1,820 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $21.9 million of work in Oswego County in fiscal 2025, about $187 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 Oswego 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 Oswego County built: brayden.ozark@gmail.com.
More of New York: the state government and every county in New York.
Nearby counties: Onondaga County (31 mi) · Cayuga County (36 mi) · Jefferson County (38 mi) · Oneida County (42 mi) · Lewis County (44 mi) · Wayne County (45 mi).