127,479 people (2024 Census estimate, +5.0% since 2020)
372 square miles of land · 342 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.
10 active community water systems list Clark County in the area they serve, reporting 175,951 people served in all (a system that crosses county lines counts its whole population).
| INDIANA AMERICAN WATER - S. INDIANA groundwater · private · IN5210005 | 104,445 served |
| WATSON RURAL WATER COMPANY groundwater · local government · IN5210016 | 15,750 served |
| SELLERSBURG WATER DEPARTMENT groundwater · local government · IN5210010 | 15,655 served |
| BORDEN TRI-COUNTY REGION surface water · local government · IN5210002 | 11,000 served |
| INDIANA AMERICAN WATER - CHARLESTOWN groundwater · local government · IN5210003 | 8,658 served |
| RURAL MEMBERSHIP WATER CORP. OF CLARK CO buys groundwater · local government · IN5210009 | 8,630 served |
| MARYSVILLE OTISCO NABB WATER CORP. buys groundwater · local government · IN5210006 | 6,813 served |
| WASHINGTON TOWNSHIP WATER groundwater · local government · IN5210015 | 4,315 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 437 people were held in Clark County's jail, in Vera's latest figure (2024), or 537 per 100,000 residents ages 15–64. In 2019 it was about 617.
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.
4 school districts have their office in Clark County. School taxes are usually the largest part of a property tax bill.
Spent $154.1 million — $120.1 million to run schools, about $11,695 per student, plus $21.6 million on buildings and equipment. Money in: $48.1 million local (mostly property tax), $94.4 million state, $19.2 million federal. Long-term debt: $159 million.
Spent $39.2 million — $24.6 million to run schools, about $6,096 per student, plus $6.3 million on buildings and equipment. Money in: $6.5 million local (mostly property tax), $32 million state, $2.6 million federal. Long-term debt: $16.1 million.
Spent $44 million — $34.5 million to run schools, about $10,959 per student, plus $9.1 million on buildings and equipment. Money in: $13 million local (mostly property tax), $27.8 million state, $3.1 million federal. Long-term debt: $92.9 million.
Spent $29.1 million — $22.6 million to run schools, about $13,177 per student, plus $6 million on buildings and equipment. Money in: $6.3 million local (mostly property tax), $15.6 million state, $1.7 million federal. Long-term debt: $9.4 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 Moderate compared with other U.S. counties. FEMA estimates natural hazards cost Clark County about $54.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
259 bridges in Clark County: 131 in good condition, 124 fair, and 4 poor (1.5%). “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.
| US 31 over OHIO RIV. I-64 STREETS · built 1929 | 15,200 vehicles a day |
| HENRYVILLE-OTISCO over Branch of CLEGG CREEK · built 1969 | 1,280 vehicles a day |
| UTICA PIKE over BATTLE CREEK · built 1950 | 1,050 vehicles a day |
| CHARLESTOWN PK ACC over LICK CREEK · built 1996 | 180 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $31.1 million of work in Clark County in fiscal 2025, about $257 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 Indiana 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 Clark 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 Clark County built: brayden.ozark@gmail.com.
More of Indiana: the state government and every county in Indiana.
Nearby counties: Scott County (14 mi) · Oldham County, KY (15 mi) · Floyd County (15 mi) · Jefferson County, KY (20 mi) · Trimble County, KY (22 mi) · Washington County (23 mi).