297,703 people (2024 Census estimate, −0.6% since 2020)
142 square miles of land · 2,101 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.
2 active community water systems list Clayton County in the area they serve, reporting 298,449 people served in all (a system that crosses county lines counts its whole population).
| CLAYTON COUNTY WATER AUTHORITY surface water · local government · GA0630000 | 298,374 served |
| CORINTH WOODS SUBDIVISION groundwater · private · GA0630008 | 75 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 0 people were held in Clayton County's jail, in Vera's latest figure (2026). In 2021 it was about 1,909.
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.
1 school district has its office in Clayton County. School taxes are usually the largest part of a property tax bill.
Spent $807.6 million — $762.4 million to run schools, about $14,609 per student, plus $44.7 million on buildings and equipment. Money in: $295.6 million local (mostly property tax), $381.3 million state, $159.6 million federal.
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 Clayton County about $59.9 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
168 bridges in Clayton County: 138 in good condition, 28 fair, and 2 poor (1.2%). “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-285 RAMP over I-285 RAMP TO I-75 SBL · built 1959 | 6,805 vehicles a day |
| REX CIRCLE over BIG COTTON INDIAN CREEK · built 1932 | 2,047 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $28.4 million of work in Clayton County in fiscal 2025, about $96 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 Georgia 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 Clayton 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 Clayton County built: brayden.ozark@gmail.com.
More of Georgia: the state government and every county in Georgia.
Nearby counties: Fayette County (11 mi) · Henry County (16 mi) · Fulton County (17 mi) · DeKalb County (19 mi) · Spalding County (21 mi) · Douglas County (23 mi).