9,420 people (2024 Census estimate, −1.0% since 2020)
550 square miles of land · 17 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 Iron County in the area they serve, reporting 5,164 people served in all (a system that crosses county lines counts its whole population).
| MO AMERICAN IRONTON surface water · private · MO4010402 | 1,460 served |
| PILOT KNOB RURAL WD 1 N & S buys groundwater · local government · MO4020601 | 839 served |
| PILOT KNOB PWS groundwater · local government · MO4010643 | 746 served |
| VIBURNUM PWS groundwater · local government · MO4010821 | 639 served |
| ARCADIA PWS groundwater · local government · MO4010023 | 607 served |
| ANNAPOLIS PWS groundwater · local government · MO4010017 | 300 served |
| KILLARNEY SHORES SUBD groundwater · private · MO4036256 | 203 served |
| BELLEVIEW VALLEY NURSING HOME groundwater · private · MO4069040 | 140 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 10 people were held in Iron County's jail, in Vera's latest figure (2019), or 169 per 100,000 residents ages 15–64. In 2014 it was about 14.
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 Iron County. School taxes are usually the largest part of a property tax bill.
Spent $14.4 million — $13.3 million to run schools, about $13,267 per student, plus $519,000 on buildings and equipment. Money in: $4.9 million local (mostly property tax), $6.7 million state, $3.3 million federal. Long-term debt: $4.4 million.
Spent $4.6 million — $4.4 million to run schools, about $12,941 per student, plus $114,000 on buildings and equipment. Money in: $2.9 million local (mostly property tax), $1.2 million state, $1.2 million federal.
Spent $5.3 million — $4.5 million to run schools, about $15,384 per student, plus $704,000 on buildings and equipment. Money in: $2.3 million local (mostly property tax), $1.8 million state, $1.8 million federal.
Spent $2.1 million — $1.6 million to run schools, about $17,538 per student, plus $46,000 on buildings and equipment. Money in: $798,000 local (mostly property tax), $1 million state, $485,000 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 Low compared with other U.S. counties. FEMA estimates natural hazards cost Iron County about $22.8 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Low; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
126 bridges in Iron County: 37 in good condition, 76 fair, and 13 poor (10.3%). “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.
| MO 49 S over BR · built 1924 | 973 vehicles a day |
| MO 49 S over UP RR · built 1927 | 973 vehicles a day |
| RT E E over MARBLE CR · built 1936 | 931 vehicles a day |
| MO 32 E over RICHARDSON CR · built 1922 | 860 vehicles a day |
| THOMPSON RD over CREEK · built 1930 | 800 vehicles a day |
| RT U E over BR E FK CEDAR CR · built 1922 | 375 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $9.6 million of work in Iron County in fiscal 2025, about $1,003 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 Iron 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 Iron County built: brayden.ozark@gmail.com.
More of Missouri: the state government and every county in Missouri.
Nearby counties: St. Francois County (18 mi) · Madison County (22 mi) · Reynolds County (23 mi) · Washington County (24 mi) · Ste. Genevieve County (34 mi) · Wayne County (38 mi).