Real IRS tax-return address changes, not a Census population estimate -- people who actually filed from a different county the following year. Positive means more people left than arrived; negative means the reverse. See the reporting-vs-reality read of this same data for how this compares against the Census's own population-change numbers.

Each number below is people who moved specifically from King County, WA to that one county, in this one year -- not that county's own total gain from every source. Select it in the picker above to see its own totals.

Each number below is people who moved specifically from that one county to King County, WA, in this one year -- not that county's own total loss to everywhere else.