40,617 people (2024 Census estimate, +2.4% since 2020)
730 square miles of land · 56 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.
18 active community water systems list Waldo County in the area they serve, reporting 10,819 people served in all (a system that crosses county lines counts its whole population).
| BELFAST WATER DISTRICT groundwater · local government · ME0090140 | 5,698 served |
| SEARSPORT WATER DISTRICT groundwater · local government · ME0091440 | 2,763 served |
| WINTERPORT WATER DISTRICT groundwater · local government · ME0091640 | 763 served |
| NORTHPORT VILLAGE CORP WATER DEPT buys groundwater · local government · ME0091165 | 550 served |
| MORRILL VILLAGE WATER DISTRICT groundwater · local government · ME0091040 | 143 served |
| THE SANDY POINT WATER COMPANY groundwater · private · ME0091400 | 98 served |
| BELFAST COHOUSING & ECOVILLAGE CONDOS groundwater · private · ME0092433 | 90 served |
| BIRCHWOOD TRAILER PARK groundwater · private · ME0095550 | 90 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 19 people were held in Waldo County's jail, in Vera's latest figure (2023), or 78 per 100,000 residents ages 15–64. In 2018 it was about 23.
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 Waldo County. School taxes are usually the largest part of a property tax bill.
Spent $28.6 million — $27.5 million to run schools, about $18,898 per student, plus $334,000 on buildings and equipment. Money in: $16.9 million local (mostly property tax), $12.9 million state, $1.3 million federal. Long-term debt: $5 million.
Spent $18.1 million — $17.2 million to run schools, about $16,034 per student, plus $431,000 on buildings and equipment. Money in: $9.8 million local (mostly property tax), $10.7 million state, $1.1 million federal. Long-term debt: $7.7 million.
Spent $11.8 million — $11.5 million to run schools, about $25,401 per student, plus $112,000 on buildings and equipment. Money in: $5.8 million local (mostly property tax), $4.1 million state, $417,000 federal. Long-term debt: $3.2 million.
Spent $4.1 million — $4 million to run schools, about $19,814 per student, plus $2,000 on buildings and equipment. Money in: $3.4 million local (mostly property tax), $800,000 state, $58,000 federal. Long-term debt: $689,000.
Spent $3.6 million — $3.6 million to run schools, about $24,876 per student, plus $4,000 on buildings and equipment. Money in: $2 million local (mostly property tax), $1.3 million state, $12,000 federal.
Spent $3.4 million — $3.3 million to run schools, about $24,726 per student, plus $27,000 on buildings and equipment. Money in: $1.4 million local (mostly property tax), $1.3 million state, $89,000 federal. Long-term debt: $182,000.
Spent $3.5 million — $2.6 million to run schools, about $29,169 per student, plus $81,000 on buildings and equipment. Money in: $3.3 million local (mostly property tax), $338,000 state, $235,000 federal. Long-term debt: $2.4 million.
Spent $2.8 million — $2.7 million to run schools, about $32,695 per student, plus $61,000 on buildings and equipment. Money in: $2.5 million local (mostly property tax), $271,000 state, $46,000 federal. Long-term debt: $6.1 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Waldo County about $13.4 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.
92 bridges in Waldo County: 15 in good condition, 62 fair, and 15 poor (16.3%). “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.
| ATLANTIC HWY over LITTLE RIVER · built 1944 | 7,764 vehicles a day |
| BANGOR RD over COLSON STREAM · built 1935 | 5,459 vehicles a day |
| SWAN LAKE AV over GOOSE RIVER · built 1953 | 4,806 vehicles a day |
| ACADIA HWY over KINGDOM BROOK · built 1958 | 4,173 vehicles a day |
| S MAIN ST over JOHNSON BROOK · built 1932 | 2,161 vehicles a day |
| TROY RD over 25 MILE STREAM · built 1921 | 1,263 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $23.7 million of work in Waldo County in fiscal 2025, about $598 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 Waldo 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 Waldo County built: brayden.ozark@gmail.com.
More of Maine: the state government and every county in Maine.
Nearby counties: Knox County (30 mi) · Kennebec County (32 mi) · Hancock County (37 mi) · Lincoln County (38 mi) · Sagadahoc County (53 mi) · Androscoggin County (58 mi).