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.
2019→2020: 25,802 out, 25,289 in, net +513
2020→2021: 25,657 out, 25,885 in, net -228
2021→2022: 25,076 out, 23,904 in, net +1,172
2022→2023: 22,179 out, 20,525 in, net +1,654
Where Lake County, IL's Leavers Went, 2022→2023
Each number below is people who moved specifically from Lake County, IL 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.
Cook County (IL)7,323
McHenry County (IL)2,134
Kenosha County (WI)1,572
DuPage County (IL)616
Maricopa County (AZ)518
Kane County (IL)471
Milwaukee County (WI)404
San Diego County (CA)373
Racine County (WI)336
Will County (IL)277
Where Lake County, IL's Arrivals Came From, 2022→2023
Each number below is people who moved specifically from that one county to Lake County, IL,
in this one year -- not that county's own total loss to everywhere else.
Oluwadi