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Moving to and from Lewis County, WA

Migration from IRS tax return addresses, filing years 2022-2023

People who moved in
4,311
2,437 tax returns, 2022-2023
People who moved out
3,612
2,086 tax returns
Net migration
+699
People, including moves to and from abroad
Did not move
64,574
People who filed here both years

Where movers came from and went

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MovesMoved inMoved outNet
Same state2,9502,199+751
Other states1,3611,413-52

Where people moving to Lewis County came from

Counties with at least 20 tax returns of movers

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#PlacePeopleTax returnsAverage income
1Thurston CountyWA990558$70,000
2Pierce CountyWA553301$64,800
3Cowlitz CountyWA310171$79,300
4Clark CountyWA269135$73,700
5King CountyWA242150$76,400
6Grays Harbor CountyWA12568$55,400
7Multnomah CountyOR7441$101,800
8Snohomish CountyWA6743$56,000
9Mason CountyWA6636$61,900
10Maricopa CountyAZ6032$64,800
11Spokane CountyWA4029$46,300
12Washington CountyOR3822$78,800
13Clark CountyNV3421$63,900

Where people leaving Lewis County went

Counties with at least 20 tax returns of movers

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#PlacePeopleTax returnsAverage income
1Thurston CountyWA813483$51,600
2Pierce CountyWA279168$52,500
3Cowlitz CountyWA254134$53,000
4King CountyWA173122$49,800
5Grays Harbor CountyWA13878$49,600
6Clark CountyWA11468$47,900
7Spokane CountyWA5235$38,000
8Pacific CountyWA5126$62,000
9Snohomish CountyWA4832$63,200
10Mason CountyWA4427$63,700
11Multnomah CountyOR4026$66,400
12Kitsap CountyWA4025$73,200
13Maricopa CountyAZ3724$69,800

Frequently asked questions

Where are people moving to Lewis County from?
In 2022-2023, the most people moving to Lewis County came from Thurston County, WA (990); Pierce County, WA (553); Cowlitz County, WA (310).
Where are people leaving Lewis County moving to?
The most people leaving Lewis County moved to Thurston County, WA (813); Pierce County, WA (279); Cowlitz County, WA (254).
Where does this migration data come from?
The IRS compares the address on each person's tax return with the address on their return a year earlier. A move is counted when the county or state changed. The data counts tax returns (roughly households) and the people listed on them, so people who do not file a return are not included.
Why are small flows missing?
The IRS only lists a county-to-county flow when it has at least 20 returns. Smaller flows are grouped together and are counted only in the totals.

Source: Internal Revenue Service, Statistics of Income, U.S. Population Migration Data · 2022-2023 filing years