Kennewick-Richland migration, mapped
In 2022–23, 10,793 people moved into the Kennewick metro and 9,852 moved out, a net of +941. 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: more arrivals come from Yakima, WA than anywhere else: 1,269 people in 2022–23. The top destination for leavers is Seattle, WA (945). The listed corridors cover about 51–57% of all flows; the totals count everyone.
- Trend: net inflow has held roughly steady over the last three years, from +902 in 2020–21 to +941 in 2022–23†.
Population · 2025
324,334
▲ 1.3% year over year · growing
Peak population
324,334
highest in the series shown (since 2000)
Why the population is changing
- Growth driver: growth is led by births minus deaths (+1,611); domestic migration added +1,338 in 2025.
- Peak population: the 2025 estimate of 324,334 is the highest on record, in data going back to 2000.
Net income flow · 2022–23
+$14M
▲ $412M arrived · $398M left
Avg household income · movers
$69k in · $72k out
similar incomes both directions
Kennewick wealth migration
- Money moved: households moving into the Kennewick metro in 2022–23 reported $412M in income (AGI). Households leaving took $398M with them, a net gain of $14M.
- Income gap: the average household moving in reported $69k of income, vs $72k 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 57% of inbound and 51% 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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