67,982 people (2024 Census estimate, −0.0% since 2020)
531 square miles of land · 128 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.
21 active community water systems list Shiawassee County in the area they serve, reporting 28,461 people served in all (a system that crosses county lines counts its whole population).
| OWOSSO, CITY OF surface water · local government · MI0005120 | 16,353 served |
| DURAND, CITY OF groundwater · local government · MI0001900 | 3,446 served |
| PERRY, CITY OF groundwater · local government · MI0005280 | 2,065 served |
| CORUNNA, CITY OF buys groundwater · local government · MI0001640 | 2,028 served |
| BANCROFT, VILLAGE OF groundwater · local government · MI0000370 | 616 served |
| NEW LOTHROP, VILLAGE OF groundwater · local government · MI0004700 | 610 served |
| BYRON, VILLAGE OF groundwater · local government · MI0001020 | 581 served |
| WOODS AND FIELDS COMMUNITIES EAST groundwater · private · MI0040639 | 528 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 120 people were held in Shiawassee County's jail, in Vera's latest figure (2019), or 273 per 100,000 residents ages 15–64. In 2014 it was about 132.
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.
8 school districts have their office in Shiawassee County. School taxes are usually the largest part of a property tax bill.
Spent $46.5 million — $39.1 million to run schools, about $13,263 per student, plus $4.9 million on buildings and equipment. Money in: $10.8 million local (mostly property tax), $31.5 million state, $7.6 million federal. Long-term debt: $39 million.
Spent $30.5 million — $23.6 million to run schools, about $14,390 per student, plus $5.7 million on buildings and equipment. Money in: $6.7 million local (mostly property tax), $18 million state, $3.1 million federal. Long-term debt: $18.5 million.
Spent $28.5 million — $16.5 million to run schools, about $13,290 per student, plus $10.1 million on buildings and equipment. Money in: $5.3 million local (mostly property tax), $13.2 million state, $1.8 million federal. Long-term debt: $39.2 million.
Spent $17.3 million — $14.4 million to run schools, about $12,680 per student, plus $1.3 million on buildings and equipment. Money in: $4.6 million local (mostly property tax), $12.8 million state, $1.5 million federal. Long-term debt: $35.5 million.
Spent $19.3 million — $13.4 million to run schools, about $13,858 per student, plus $4.6 million on buildings and equipment. Money in: $5.2 million local (mostly property tax), $10.5 million state, $1.6 million federal. Long-term debt: $32.1 million.
Spent $13.4 million — $11.8 million to run schools, about $13,462 per student, plus $844,000 on buildings and equipment. Money in: $3 million local (mostly property tax), $10.2 million state, $1.2 million federal. Long-term debt: $743,000.
Spent $9.8 million — $8.6 million to run schools, about $12,677 per student, plus $868,000 on buildings and equipment. Money in: $2.2 million local (mostly property tax), $7.4 million state, $1.2 million federal. Long-term debt: $161,000.
Spent $7.2 million — $6.8 million to run schools, about $14,108 per student, plus $72,000 on buildings and equipment. Money in: $1.9 million local (mostly property tax), $5.4 million state, $764,000 federal. Long-term debt: $10.3 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 Shiawassee County about $22.1 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
163 bridges in Shiawassee County: 72 in good condition, 76 fair, and 15 poor (9.2%). “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-69 EB over HURON & EASTERN RR · built 1961 | 14,378 vehicles a day |
| I-69 EB over CN RR & REED RD · built 1961 | 13,840 vehicles a day |
| I-69 WB over CN RR & REED RD · built 1961 | 13,840 vehicles a day |
| NEW LOTHROP ROAD over SHIAWASSEE RIVER · built 1955 | 2,055 vehicles a day |
| DURAND ROAD over NORTHWOOD CREEK · built 1930 | 1,409 vehicles a day |
| MAIN ST over HOLLY DRAIN · built 1965 | 1,209 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $8.8 million of work in Shiawassee County in fiscal 2025, about $130 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 Michigan 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 Shiawassee 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 Shiawassee County built: brayden.ozark@gmail.com.
More of Michigan: the state government and every county in Michigan.
Nearby counties: Clinton County (22 mi) · Genesee County (23 mi) · Saginaw County (26 mi) · Ingham County (27 mi) · Livingston County (27 mi) · Gratiot County (33 mi).