Trenton-Princeton migration, mapped
In 2022–23, 14,201 people moved into the Trenton metro and 16,784 moved out, a net of −2,583. 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: New York, NY-NJ leads both directions, with 7,252 people in and 5,367 out in 2022–23.
- Trend: net outflow has deepened over the last three years, from −1,705 in 2020–21 to −2,583 in 2022–23†.
Population · 2025
399,289
▲ 0.5% year over year · growing
Peak population
399,289
highest in the series shown (since 2000)
Why the population is changing
- Growth driver: the population grew in 2025 even after losing 2,240 people to domestic migration. International migration (+3,089) and births minus deaths (+1,082) more than made up for it.
- Peak population: the 2025 estimate of 399,289 is the highest on record, in data going back to 2000.
Net income flow · 2022–23
−$250M
▼ $852M arrived · $1.1B left
Avg household income · movers
$99k in · $106k out
leavers out-earn arrivals by 7%
Trenton wealth migration
- Money moved: households moving into the Trenton metro in 2022–23 reported $852M in income (AGI). Households leaving took $1.1B with them, a net loss of $250M.
- Income gap: the average household moving in reported $99k of income, vs $106k for leavers. Leavers out-earn arrivals by 7%.
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 80% of inbound and 78% 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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