What are the fastest-growing counties in Michigan?
Lake County is the fastest-growing county in Michigan: its population grew 1.75% a year from 2020 to 2025, to 13,182 residents (Census PEP Vintage 2025). Crawford County (1.11%) and Antrim County (1.04%) follow. Michigan as a whole grew 0.11% a year to 10,127,884 residents.
Data as of 2026-09-23. Population, growth and migration: PEP Vintage 2025 · 2020–2025. Income migration: IRS SOI 2022–2023 (2-yr lag).
Top 10 counties in Michigan by population growth, 2020 to 2025
| Rank | County | Population | Growth (% per year) | Net domestic migration | Net international migration | IRS net AGI migration |
|---|---|---|---|---|---|---|
| 1 | Lake County | 13,182 | 1.75% | +1,574 | +15 | +$8.2M |
| 2 | Crawford County | 13,722 | 1.11% | +1,210 | +25 | +$7.9M |
| 3 | Antrim County | 24,698 | 1.04% | +1,894 | +80 | +$14.6M |
| 4 | Mecosta County | 42,320 | 0.93% | +2,051 | +86 | +$7.7M |
| 5 | Kalkaska County | 18,693 | 0.84% | +1,126 | +19 | +$12.3M |
| 6 | Montcalm County | 69,406 | 0.81% | +2,541 | +641 | +$15.6M |
| 7 | Ottawa County | 308,459 | 0.77% | +6,136 | +2,251 | +$73.2M |
| 8 | Mackinac County | 11,236 | 0.76% | +527 | +323 | -$3.6M |
| 9 | Otsego County | 26,080 | 0.74% | +1,260 | +105 | +$16.6M |
| 10 | Alcona County | 10,556 | 0.72% | +1,079 | +29 | +$5.3M |
Where are people moving in Michigan?
Ottawa County gained the most people from elsewhere in the United States: net domestic migration of +6,136 from 2020 to 2025 (Census PEP Vintage 2025). The table ranks every Michigan place with 10,000 or more residents by that figure; the IRS column shows net adjusted gross income migration for 2022 to 2023.
| Rank | County | Population | Growth (% per year) | Net domestic migration | Net international migration | IRS net AGI migration |
|---|---|---|---|---|---|---|
| 1 | Ottawa County | 308,459 | 0.77% | +6,136 | +2,251 | +$73.2M |
| 2 | Muskegon County | 177,901 | 0.35% | +3,704 | +512 | +$39.8M |
| 3 | Livingston County | 197,315 | 0.34% | +3,522 | +326 | +$34.3M |
| 4 | St. Clair County | 160,486 | 0.01% | +2,614 | +433 | +$7.9M |
| 5 | Montcalm County | 69,406 | 0.81% | +2,541 | +641 | +$15.6M |
| 6 | Monroe County | 156,004 | 0.14% | +2,431 | +703 | -$7.0M |
| 7 | Marquette County | 68,064 | 0.45% | +2,151 | +219 | +$18.7M |
| 8 | Mecosta County | 42,320 | 0.93% | +2,051 | +86 | +$7.7M |
| 9 | Grand Traverse County | 96,729 | 0.27% | +2,010 | +230 | +$89.7M |
| 10 | Lapeer County | 89,516 | 0.21% | +1,977 | +269 | +$20.4M |
Go past the headline numbers
The interactive Demographics map layer and the full report for a single place are part of paid plans.
Get the Demographics Report for Lake CountyFrequently asked questions
- What are the fastest-growing counties in Michigan?
- By population growth from 2020 to 2025, the fastest are Lake County (1.75% a year), Crawford County (1.11% a year), Antrim County (1.04% a year), Mecosta County (0.93% a year) and Kalkaska County (0.84% a year) (Census PEP Vintage 2025). Only places with 10,000 or more residents are ranked.
- Where are people moving in Michigan?
- By net domestic migration from 2020 to 2025, the largest gains are Ottawa County (+6,136), Muskegon County (+3,704) and Livingston County (+3,522) (Census PEP Vintage 2025).
- How fast is Michigan growing overall?
- Michigan grew 0.11% a year from 2020 to 2025, to 10,127,884 residents, with net migration of +95,365 people (Census PEP Vintage 2025).
- Where does this Michigan data come from, and how current is it?
- Population, growth and migration come from the U.S. Census Bureau Population Estimates Program (PEP Vintage 2025 · 2020–2025). Income migration comes from IRS Statistics of Income (IRS SOI 2022–2023 (2-yr lag)). Counties with fewer than 10,000 residents are not ranked (8 of 83 in Michigan). Data last loaded 2026-09-23.
Data as of 2026-09-23: sources and periods
- Population, growth and migration
- U.S. Census Bureau, Population Estimates Program: PEP Vintage 2025 · 2020–2025. census.gov/programs-surveys/popest
- Income migration (net AGI)
- Internal Revenue Service, Statistics of Income migration data: IRS SOI 2022–2023 (2-yr lag). irs.gov/statistics/soi-tax-stats-migration-data
How to read the table
- Population is the Census July 1 estimate of the latest vintage.
- Growth is the compound annual rate over 2020 to 2025.
- Net domestic and international migration are cumulative people over 2020 to 2025.
- IRS net AGI migration is adjusted gross income that moved in, less what moved out, for 2022 to 2023. A plus sign means a net inflow.
- Places with fewer than 10,000 residents are left out of the rankings.