107,914 people (2024 Census estimate, +4.0% since 2020)
519 square miles of land · 208 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.
35 active community water systems list Adams County in the area they serve, reporting 48,199 people served in all (a system that crosses county lines counts its whole population).
| GETTYSBURG MUNI AUTH surface water · local government · PA7010019 | 12,425 served |
| LITTLESTOWN BORO groundwater · local government · PA7010022 | 7,300 served |
| NEW OXFORD MUNCI AUTH surface water · local government · PA7010025 | 3,963 served |
| LAKE MEADE MUNI AUTH groundwater · local government · PA7010036 | 3,221 served |
| BONNEAUVILLE MUNI WATER AUTH groundwater · local government · PA7010012 | 2,730 served |
| BIGLERVILLE WATER CO groundwater · local government · PA7010020 | 2,501 served |
| FAIRFIELD MUNI AUTH groundwater · local government · PA7010005 | 2,150 served |
| EAST BERLIN AREA JOINT AUTH groundwater · local government · PA7010003 | 1,750 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 206 people were held in Adams County's jail, in Vera's latest figure (2023), or 311 per 100,000 residents ages 15–64. In 2018 it was about 193.
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.
6 school districts have their office in Adams County. School taxes are usually the largest part of a property tax bill.
Spent $72.6 million — $63.9 million to run schools, about $17,010 per student, plus $1.6 million on buildings and equipment. Money in: $46.8 million local (mostly property tax), $25.4 million state, $4.5 million federal. Long-term debt: $42.4 million.
Spent $71.3 million — $61.4 million to run schools, about $22,075 per student, plus $2.9 million on buildings and equipment. Money in: $51.4 million local (mostly property tax), $21.7 million state, $3.7 million federal. Long-term debt: $68.9 million.
Spent $38.9 million — $32.3 million to run schools, about $18,395 per student, plus $2.4 million on buildings and equipment. Money in: $24.6 million local (mostly property tax), $14.7 million state, $2.5 million federal. Long-term debt: $23.2 million.
Spent $38.6 million — $30 million to run schools, about $17,099 per student, plus $4.9 million on buildings and equipment. Money in: $20 million local (mostly property tax), $14.3 million state, $2.3 million federal. Long-term debt: $50.8 million.
Spent $33.6 million — $29.1 million to run schools, about $18,216 per student, plus $2.3 million on buildings and equipment. Money in: $18.6 million local (mostly property tax), $15.1 million state, $3.2 million federal. Long-term debt: $34.3 million.
Spent $19.3 million — $16.8 million to run schools, about $17,485 per student, plus $506,000 on buildings and equipment. Money in: $14.1 million local (mostly property tax), $7.5 million state, $907,000 federal. Long-term debt: $21.7 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: Relatively Low compared with other U.S. counties. FEMA estimates natural hazards cost Adams County about $27.2 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.
254 bridges in Adams County: 93 in good condition, 143 fair, and 18 poor (7.1%). “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.
| PA 34; SR 0034 over CONEWAGO CREEK · built 1920 | 4,740 vehicles a day |
| PA 116; SR 0116 over TRIB TO MARSH CREEK · built 1920 | 3,987 vehicles a day |
| JACK MTN.RD. /3021 over MINEY BRANCH RUN · built 1937 | 2,578 vehicles a day |
| PA 394; SR 0394 over CONEWAGO CREEK · built 1935 | 1,280 vehicles a day |
| SR 4008 over CONEWAGO CREEK · built 1957 | 1,081 vehicles a day |
| SR 3002 over ROCK CREEK · built 1940 | 667 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $6.2 million of work in Adams County in fiscal 2025, about $59 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 Pennsylvania 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 Adams 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 Adams County built: brayden.ozark@gmail.com.
More of Pennsylvania: the state government and every county in Pennsylvania.
Nearby counties: Cumberland County (21 mi) · Carroll County, MD (24 mi) · York County (26 mi) · Franklin County (27 mi) · Frederick County, MD (29 mi) · Perry County (37 mi).