Bay City migration, mapped
In 2022–23, 3,701 people moved into the Bay City metro and 3,505 moved out, a net of +196. Yellow arcs are people arriving, blue arcs are people leaving. Hover a dot to see the corridor, or click through to compare.
The map couldn’t load. The numbers below still tell the story.
† IRS methodology change in this year’s files (see methodology)
What the flows say
- Biggest published corridors: Saginaw, MI leads both directions, with 821 people in and 772 out in 2022–23. The listed corridors cover about 65% of all flows; the totals count everyone.
- Trend: net inflow has strengthened over the last three years, from +118 in 2020–21 to +196 in 2022–23†.
Population · 2025
102,123
▼ 0.3% year over year · shrinking
Peak population · 2000
110,192
7.3% below the 2000 peak
Why the population is changing
- Growth driver: the population fell in 2025 despite domestic gains (+112). Births minus deaths (−465) and international migration (+40) outweighed them.
- Peak population: the high-water mark was 110,192 in 2000. The 2025 estimate of 102,123 is 7.3% below that.
Net income flow · 2022–23
+$237k
▲ $120M arrived · $120M left
Avg household income · movers
$51k in · $52k out
similar incomes both directions
Bay City wealth migration
- Money moved: households moving into the Bay City metro in 2022–23 reported $120M in income (AGI). Households leaving took $120M with them, a net gain of $237k.
- Income gap: the average household moving in reported $51k of income, vs $52k for leavers. Arriving and leaving households report similar incomes.
About the data
Corridors are IRS county-to-county migration flows added up into metro areas (2023 Census metro definitions; exemptions ≈ people). "Rest of" entries cover a state's counties outside any featured metro. The IRS hides corridors with fewer than 20 returns, so the lists here cover about 65% of inbound and 65% of outbound movers in 2022–23. The in, out, and net totals count everyone. Income figures are the total income (AGI) movers reported, from the complete county totals. Dollars are not adjusted for inflation, and household averages divide by the number of returns. Population figures are Census Bureau estimates; the peak covers records since 2000. Years marked † had a change in how the IRS built the files. Full details on the methodology page.
Download this data (CSV), free to use with attribution.
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