Ionia County, Michigan Demographics 2026
Ionia County, Michigan has a population of 66,574, the 30th most populous county in Michigan. The median household income is $75,611 and the median home value is $198,500. The poverty rate is 10.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Ionia County Quick Facts
How Ionia County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 66,706 | 66,574 | -0.2% |
| Median household income | $73,436 | $75,611 | +3.0% |
| Median home value | $189,400 | $198,500 | +4.8% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Ionia County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Ionia | 12,753 | $63,978 | 12.0% | $164,800 |
| Belding | 5,960 | $60,373 | 15.5% | $163,800 |
| Portland | 3,790 | $65,845 | 7.3% | $166,200 |
| Lake Odessa | 2,155 | $62,813 | 13.5% | $148,600 |
| Saranac | 2,013 | $66,944 | 15.3% | $202,800 |
| Lyons | 896 | $68,603 | 12.2% | $121,500 |
| Muir | 490 | $46,771 | 14.1% | $143,100 |
| Pewamo | 439 | $72,500 | 6.6% | $189,400 |
| Clarksville | 417 | $75,625 | 9.3% | $173,000 |
| Palo | 375 | $34,489 | 20.3% | $94,300 |
Explore Michigan Rankings
Population Overview
Ionia County is located in Michigan with a total population of 66,574. It is the 30th most populous county out of 83 in Michigan. The county encompasses 10 Census-designated places.
Age Demographics
The median age in Ionia County is 39.1 years. This is 3% lower than the state median of 40.2 years.
Economy, Income & Housing
The median household income in Ionia County is $75,611. This is 4% higher than the state median of $72,875. It is also 6% lower than the national median of $80,734. The poverty rate stands at 10.6%. This is 20% lower than the state poverty rate of 13.2%. The unemployment rate is 3.9%. This is 31% lower than the state rate of 5.7%. The median home value is $198,500. Housing costs are 14% lower than the state median of $231,600. With a home-value-to-income ratio of just 2.6x, Ionia County is one of the most affordable housing markets in the area. 77.3% of occupied housing units are owner-occupied. This homeownership rate is 6% higher than the state average of 73.2%.
Race & Ethnicity
Ionia County has a predominantly White (non-Hispanic) population, comprising 85.3% of all residents. Hispanic or Latino residents account for 5.3%. The Black or African American population (3.3%) is well below the state average of 13.1%. The Asian population (0.5%) is well below the state average of 3.4%.
Education
18.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 43% lower than the state rate of 32.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.0%.
Data Sources & Methodology
All figures for Ionia County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Michigan and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Ionia County, Michigan?
Ionia County has a population of 66,574, making it the 30th most populous county in Michigan.
What is the median income in Ionia County?
The median household income in Ionia County is $75,611 with a poverty rate of 10.6%.
How many cities are in Ionia County, Michigan?
Ionia County contains 10 Census-designated places.