11,910 people (2024 Census estimate, +0.4% since 2020)
616 square miles of land · 19 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.
9 active community water systems list Linn County in the area they serve, reporting 14,642 people served in all (a system that crosses county lines counts its whole population).
| CHARITON LINN COUNTY PWSD 3 buys surface water · local government · MO2024128 | 5,200 served |
| BROOKFIELD PWS surface water · local government · MO2010105 | 4,111 served |
| MARCELINE PWS surface water · local government · MO2010497 | 2,200 served |
| LINN COUNTY CONS PWSD 1 groundwater · local government · MO2024346 | 1,420 served |
| MEADVILLE PWS groundwater · local government · MO2010512 | 415 served |
| BUCKLIN PWS buys surface water · local government · MO2010112 | 408 served |
| LACLEDE PWS buys surface water · local government · MO2010437 | 345 served |
| LINNEUS PWS buys groundwater · local government · MO2010472 | 278 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.
No county jail figure in the national data for Linn County — not gathered, never hidden. Some counties share a regional jail or have none.
5 school districts have their office in Linn County. School taxes are usually the largest part of a property tax bill.
Spent $14.4 million — $11.2 million to run schools, about $12,715 per student, plus $2.8 million on buildings and equipment. Money in: $5.9 million local (mostly property tax), $5.7 million state, $3.6 million federal. Long-term debt: $6.2 million.
Spent $8.1 million — $7.5 million to run schools, about $11,424 per student, plus $292,000 on buildings and equipment. Money in: $4.5 million local (mostly property tax), $3.6 million state, $902,000 federal. Long-term debt: $6.6 million.
Spent $4.6 million — $2.9 million to run schools, about $12,921 per student, plus $1.6 million on buildings and equipment. Money in: $1.7 million local (mostly property tax), $1.4 million state, $404,000 federal. Long-term debt: $2.6 million.
Spent $3.2 million — $3 million to run schools, about $15,653 per student, plus $214,000 on buildings and equipment. Money in: $1.5 million local (mostly property tax), $1.6 million state, $546,000 federal.
Spent $2.5 million — $2.3 million to run schools, about $20,070 per student, plus $135,000 on buildings and equipment. Money in: $1 million local (mostly property tax), $1.2 million state, $270,000 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Linn County about $8.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
313 bridges in Linn County: 119 in good condition, 138 fair, and 56 poor (17.9%). “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 36 E over SIGHTS BR · built 1924 | 8,773 vehicles a day |
| US 36 W over MUDDY CR · built 1964 | 6,227 vehicles a day |
| US 36 W over BIG TURKEY CR · built 1961 | 5,215 vehicles a day |
| US 36 W over BIG TURKEY CR OVRF · built 1961 | 5,215 vehicles a day |
| RT U S over LONG BR · built 1955 | 298 vehicles a day |
| RT C E over LONG BR · built 1930 | 289 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $6.7 million of work in Linn County in fiscal 2025, about $565 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 Linn 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 Linn County built: brayden.ozark@gmail.com.
More of Missouri: the state government and every county in Missouri.
Nearby counties: Sullivan County (24 mi) · Livingston County (24 mi) · Chariton County (25 mi) · Macon County (29 mi) · Grundy County (30 mi) · Adair County (35 mi).