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Gratiot County, MI
8 cities and towns and 13 ZIP codes in Gratiot County, Michigan.
Population
41,385
Land area
568sq mi
People per sq mi
73
ZIP codes
13
Cities and towns in Gratiot County
Gratiot County at a glance
- Gratiot County is 59% less dense than Michigan as a whole.
- The median household income is $63,556, 13% below the Michigan median of $72,875.
- A typical owner-occupied home is valued at $147,500 (36% below Michigan) and median rent is $834 a month.
- Its largest cities are Alma (9,396), St. Louis (7,367) and Ithaca (2,817).
Local data for Gratiot County, MI
Counts from official public data
Housing and community stats
Gratiot County, MI, American Community Survey 2020-2024
Median household income
$63,556
Poverty rate
14.0%
Median home value
$147,500
Prices +4.2% in a year
Median rent
$834/mo
Homeownership
78.9%
Bachelor's or higher
18.7%
Median age
39.6
Average commute
23.9 min
Largest reported origins and ancestries: German Americans (9,139), Irish Americans (3,766), Mexican Americans (2,379).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
4.5%
Sep 2026, 0.0 pts in a year
Average annual pay
$57,646
12,739 jobs, 2025
Income per person
$46,618
BEA, 2024
Federal spending
$256M
FY 2026, $6,142 per person
PPP loans
$77.2M
1,157 loans, 9,295 jobs reported
Campaign donations
$124K
Itemized, 2026 cycle
How people get to work
Gratiot County, MI, workers 16 and older. American Community Survey 5-year estimates
- Drove alone79.9%
- Carpooled6.7%
- Public transit0.1%
- Walked4.0%
- Bicycle0.5%
- Taxi, ride-hailing, motorcycle or other1.2%
- Worked from home7.7%
Average one-way commute: 23.9 minutes for people who do not work from home.
Environment and hazard risk
Gratiot County, MI, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: strong wind
Storm events since 1996
190
Most often thunderstorm wind
Flood insurance policies
51
0.4% of homes, county
July high / Jan low
82° / 15°F
34.5 inches of rain a year
Hazards, floods and storm historyCheck a flood zone5 historic places
Health statistics
Share of adults in Gratiot County, MI, CDC PLACES estimates
Obesity
36.7%
U.S. 33.3% +3.4 pts
Diabetes
11.6%
U.S. 12.1% -0.5 pts
Smoking
16.6%
U.S. 12.8% +3.8 pts
Uninsured (18-64)
8.2%
U.S. 11.1% -2.9 pts
Cities, towns and ZIP codes in Gratiot County
Population shown
Frequently asked questions
- What is the largest city in Gratiot County, MI?
- Alma is the largest city or town in Gratiot County, with about 9,396 residents.
- How many ZIP codes are in Gratiot County?
- Gratiot County includes 13 ZIP Code Tabulation Areas, including 48615, 48662, 48801, 48806, 48807.
- What is the population of Gratiot County, MI?
- About 41,385 people live in Gratiot County, based on American Community Survey 5-year estimates.
- What counties border Gratiot County?
- Gratiot County borders Saginaw County, Midland County, Clinton County, Shiawassee County, Montcalm County, Ionia County, Isabella County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023