93,045 people (2024 Census estimate, +2.0% since 2020)
1,709 square miles of land · 54 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.
74 active community water systems list Grafton County in the area they serve, reporting 69,289 people served in all (a system that crosses county lines counts its whole population).
| LEBANON WATER DEPT surface water · local government · NH1321010 | 13,600 served |
| HANOVER WATER DEPT surface water · local government · NH1071010 | 9,600 served |
| PLYMOUTH VLG WATER AND SEWER groundwater · local government · NH1941010 | 6,700 served |
| LITTLETON WATER AND LIGHT surface water · local government · NH1381010 | 6,500 served |
| BRISTOL WATER WORKS groundwater · local government · NH0301010 | 3,575 served |
| LINCOLN WATER WORKS surface water · local government · NH1351010 | 3,300 served |
| WATERVILLE VALLEY WATER DIST groundwater · local government · NH2441010 | 3,150 served |
| WOODSTOCK WATER DEPT groundwater · local government · NH2571020 | 2,950 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 59 people were held in Grafton County's jail, in Vera's latest figure (2023), or 99 per 100,000 residents ages 15–64. In 2018 it was about 66.
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.
27 school districts have their office in Grafton County. School taxes are usually the largest part of a property tax bill.
Spent $51.7 million — $43 million to run schools, about $26,228 per student, plus $7.1 million on buildings and equipment. Money in: $39 million local (mostly property tax), $8.3 million state, $4.1 million federal. Long-term debt: $24.7 million.
Spent $25.8 million — $24.6 million to run schools, about $21,003 per student, plus $874,000 on buildings and equipment. Money in: $16.3 million local (mostly property tax), $8 million state, $2.5 million federal. Long-term debt: $802,000.
Spent $29.9 million — $27.9 million to run schools, about $25,417 per student, plus $492,000 on buildings and equipment. Money in: $21.8 million local (mostly property tax), $7.8 million state, $1.9 million federal. Long-term debt: $30.1 million.
Spent $29.4 million — $26.5 million to run schools, about $26,057 per student, plus $1.1 million on buildings and equipment. Money in: $30.8 million local (mostly property tax), $370,000 state, $397,000 federal. Long-term debt: $4.4 million.
Spent $15.5 million — $14.6 million to run schools, about $22,398 per student, plus $368,000 on buildings and equipment. Money in: $8.5 million local (mostly property tax), $5.3 million state, $1.5 million federal. Long-term debt: $3.3 million.
Spent $18.6 million — $17.5 million to run schools, about $26,761 per student, plus $748,000 on buildings and equipment. Money in: $10.3 million local (mostly property tax), $6 million state, $2.9 million federal.
Spent $17.5 million — $15 million to run schools, about $22,991 per student, plus $2.3 million on buildings and equipment. Money in: $11.7 million local (mostly property tax), $4.3 million state, $1.6 million federal. Long-term debt: $3.5 million.
Spent $13.7 million — $12.9 million to run schools, about $28,363 per student, plus $400,000 on buildings and equipment. Money in: $9.1 million local (mostly property tax), $5.4 million state, $334,000 federal. Long-term debt: $4 million.
And 19 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 Grafton County about $50.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
547 bridges in Grafton County: 262 in good condition, 242 fair, and 43 poor (7.9%). “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.
| I-89 NB over CONNECTICUT RIVER NECRR · built 1966 | 22,288 vehicles a day |
| I-89 SB over CONNECTICUT RIVER NECRR · built 1966 | 21,268 vehicles a day |
| US 4 MECHANIC ST over MASCOMA RIVER · built 1977 | 12,803 vehicles a day |
| NH 12A over NHRR · built 1949 | 9,117 vehicles a day |
| NH112 KANCAMAGUS over PEMIGEWASSET RIVER · built 1933 | 6,210 vehicles a day |
| NH 3A over NEWFOUND RIVER · built 1924 | 5,690 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $253.1 million of work in Grafton County in fiscal 2025, about $2,778 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 Hampshire 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 Grafton 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 Grafton County built: brayden.ozark@gmail.com.
More of New Hampshire: the state government and every county in New Hampshire.
Nearby counties: Orange County, VT (27 mi) · Carroll County (32 mi) · Belknap County (35 mi) · Caledonia County, VT (40 mi) · Sullivan County (43 mi) · Merrimack County (44 mi).