45,126 people (2024 Census estimate, +1.8% since 2020)
835 square miles of land · 54 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.
11 active community water systems list Callaway County in the area they serve, reporting 38,234 people served in all (a system that crosses county lines counts its whole population).
| CALLAWAY 2 WATER DISTRICT groundwater · local government · MO3024085 | 13,080 served |
| FULTON PWS groundwater · local government · MO3010296 | 12,600 served |
| CALLAWAY COUNTY PWSD 1 groundwater · local government · MO3024084 | 9,840 served |
| AUXVASSE PWS groundwater · local government · MO3010039 | 1,001 served |
| NEW BLOOMFIELD PWS groundwater · local government · MO3010563 | 669 served |
| SEGES MHP buys groundwater · private · MO2041558 | 285 served |
| WINTERWOOD ESTATES buys groundwater · private · MO2046330 | 250 served |
| MOKANE PWS groundwater · local government · MO3010535 | 208 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 84 people were held in Callaway County's jail, in Vera's latest figure (2023), or 291 per 100,000 residents ages 15–64. In 2018 it was about 81.
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 Callaway County. School taxes are usually the largest part of a property tax bill.
Spent $39.4 million — $24.9 million to run schools, about $11,076 per student, plus $12.7 million on buildings and equipment. Money in: $15 million local (mostly property tax), $13.4 million state, $5.1 million federal. Long-term debt: $24.5 million.
Spent $14 million — $11.9 million to run schools, about $11,709 per student, plus $981,000 on buildings and equipment. Money in: $7.8 million local (mostly property tax), $5.8 million state, $2.4 million federal. Long-term debt: $7.1 million.
Spent $11.8 million — $10.6 million to run schools, about $14,098 per student, plus $1.1 million on buildings and equipment. Money in: $10 million local (mostly property tax), $2.1 million state, $1.3 million federal.
Spent $8.3 million — $7.3 million to run schools, about $10,916 per student, plus $1 million on buildings and equipment. Money in: $3.8 million local (mostly property tax), $4.3 million state, $1.8 million federal. Long-term debt: $1.8 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 Callaway County about $22.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
305 bridges in Callaway County: 113 in good condition, 173 fair, and 19 poor (6.2%). “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.
| NICHOLS ST over KCS RR · built 1940 | 1,500 vehicles a day |
| RT H E over MIDDLE RVR · built 1964 | 1,298 vehicles a day |
| RT B E over HARRISON CR · built 1959 | 1,139 vehicles a day |
| OR 63 S over TURKEY CR · built 1940 | 996 vehicles a day |
| OLD HWY 54 over AUXVASSE CR · built 1921 | 500 vehicles a day |
| RT A S over BACHELOR CR · built 1954 | 321 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $146.2 million of work in Callaway County in fiscal 2025, about $3,302 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 Missouri 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 Callaway 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 Callaway County built: brayden.ozark@gmail.com.
More of Missouri: the state government and every county in Missouri.
Nearby counties: Boone County (23 mi) · Montgomery County (26 mi) · Osage County (26 mi) · Audrain County (26 mi) · Cole County (30 mi) · Gasconade County (35 mi).