128,461 people (2024 Census estimate, +3.0% since 2020)
867 square miles of land · 148 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.
31 active community water systems list Kennebec County in the area they serve, reporting 55,771 people served in all (a system that crosses county lines counts its whole population).
| KENNEBEC WATER DISTRICT surface water · local government · ME0090750 | 22,060 served |
| GREATER AUGUSTA UTILITY DISTRICT groundwater · local government · ME0090080 | 13,750 served |
| GARDINER WATER DISTRICT groundwater · local government · ME0090610 | 9,000 served |
| MAINE WATER COMPANY OAKLAND DIVISION buys surface water · private · ME0091190 | 2,873 served |
| WINTHROP UTILITIES DISTRICT surface water · local government · ME0091650 | 2,750 served |
| HALLOWELL WATER DISTRICT groundwater · local government · ME0090650 | 2,300 served |
| CLINTON WATER DISTRICT groundwater · local government · ME0090350 | 1,013 served |
| MONMOUTH WATER ASSOCIATION buys surface water · private · ME0091020 | 588 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 146 people were held in Kennebec County's jail, in Vera's latest figure (2023), or 182 per 100,000 residents ages 15–64. In 2018 it was about 141.
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.
11 school districts have their office in Kennebec County. School taxes are usually the largest part of a property tax bill.
Spent $44.9 million — $43.1 million to run schools, about $15,509 per student, plus $1 million on buildings and equipment. Money in: $25.4 million local (mostly property tax), $18.6 million state, $2.9 million federal. Long-term debt: $12.8 million.
Spent $39.6 million — $38 million to run schools, about $17,158 per student, plus $545,000 on buildings and equipment. Money in: $14.1 million local (mostly property tax), $20.6 million state, $6 million federal. Long-term debt: $5.7 million.
Spent $32.4 million — $32 million to run schools, about $16,414 per student, plus $91,000 on buildings and equipment. Money in: $11.8 million local (mostly property tax), $18 million state, $3.6 million federal. Long-term debt: $1.7 million.
Spent $35.4 million — $34 million to run schools, about $17,897 per student, plus $442,000 on buildings and equipment. Money in: $19.3 million local (mostly property tax), $17.6 million state, $2.5 million federal. Long-term debt: $14.8 million.
Spent $37.1 million — $35.5 million to run schools, about $21,525 per student, plus $714,000 on buildings and equipment. Money in: $10.9 million local (mostly property tax), $19.8 million state, $6.2 million federal. Long-term debt: $1.3 million.
Spent $22.8 million — $22.2 million to run schools, about $18,390 per student, plus $89,000 on buildings and equipment. Money in: $14.5 million local (mostly property tax), $6.8 million state, $1.7 million federal. Long-term debt: $4.1 million.
Spent $22.8 million — $21.9 million to run schools, about $20,512 per student, plus $276,000 on buildings and equipment. Money in: $9.3 million local (mostly property tax), $10 million state, $3.8 million federal. Long-term debt: $5.6 million.
Spent $16.2 million — $15.6 million to run schools, about $18,775 per student, plus $504,000 on buildings and equipment. Money in: $7.3 million local (mostly property tax), $5.9 million state, $1.5 million federal. Long-term debt: $21.3 million.
And 3 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 Kennebec County about $37.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
190 bridges in Kennebec County: 38 in good condition, 128 fair, and 24 poor (12.6%). “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.
| WESTERN AV over INTERSTATE 95 NB & SB · built 1955 | 16,934 vehicles a day |
| MOUNT VERNON AV over BOND BROOK · built 1934 | 13,526 vehicles a day |
| WATER STREET over BOND BROOK · built 1854 | 8,861 vehicles a day |
| SPRING ST over KENNEBEC RIVER · built 1936 | 8,829 vehicles a day |
| W RIVER RD over TOWN FARM BROOK · built 1917 | 2,844 vehicles a day |
| POND RD over WHITTEN STREAM (NORTH) · built 1931 | 1,867 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $724.6 million of work in Kennebec County in fiscal 2025, about $5,861 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 Maine 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 Kennebec 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 Kennebec County built: brayden.ozark@gmail.com.
More of Maine: the state government and every county in Maine.
Nearby counties: Androscoggin County (28 mi) · Lincoln County (32 mi) · Waldo County (32 mi) · Sagadahoc County (35 mi) · Knox County (44 mi) · Oxford County (48 mi).