Market insights · Michigan
Ionia County, MI: growth, migration and housing
Ionia County has 66,557 residents, down 0.5% since 2020 (+0.4% in the last year). In 2022–2023, 1,605 households moved in and 1,567 moved out (+38 net), while a net $0.8M of income left. Median household income is $75,611, the median home $198,500 and median rent $884 a month.
In Michigan: 66th of 83 counties for 5-year population growth · 45th of 83 counties for net in-migration (per resident) · 18th of 83 counties for median household income · 28th of 83 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Ionia County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Kent County, MI | 497 | $26.7M |
| Montcalm County, MI | 211 | $8.0M |
| Eaton County, MI | 113 | $5.6M |
| Barry County, MI | 80 | $3.8M |
| Ingham County, MI | 80 | $3.9M |
| Clinton County, MI | 77 | $3.8M |
| Ottawa County, MI | 56 | $3.5M |
| Allegan County, MI | 24 | $1.8M |
Where leavers went
Top counties by households leaving Ionia County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Kent County, MI | 375 | $21.9M |
| Montcalm County, MI | 223 | $8.0M |
| Eaton County, MI | 128 | $7.1M |
| Clinton County, MI | 83 | $5.5M |
| Ingham County, MI | 76 | $3.6M |
| Barry County, MI | 67 | $2.8M |
| Ottawa County, MI | 52 | $2.5M |
| Gratiot County, MI | 24 | $1.0M |
BizyFi in Ionia County
No companies in the BizyFi directory are based here yet. Search them on the company map (company names with a free account), or browse Michigan companies.
← All Michigan counties · National rankings
Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.