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County · Illinois

Lee County

33,544Population
-1.8 %Change since 2020
-194Net migration
4.6 %Unemployment rate

Facts

Population
33,544 (2024)
Change since 2020
-1.8 %
Net migration
-194 (2023)
Unemployment rate
4.6 % (2025)
Population base, April 2020
34,151 (2020)
Births
281 (2023)
Births per 1,000 residents, 2023
8.4
Deaths
403 (2023)
Deaths per 1,000 residents, 2023
12.0
Natural change, 2023
-122
International migration
54 (2023)
Domestic migration
-248 (2023)
Net migration per 1,000, 2023
-5.8
Postal code
IL
FIPS code
17103

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020254.64.9
PeriodValue
20254.6 %
20244.9 %
20235.0 %
20224.6 %
20215.2 %
20207.4 %
20194.3 %
20184.9 %
20174.9 %
20165.7 %
20155.3 %
20146.2 %

Population estimates, 2020–2024

2020202433.5K34.1K
PeriodValue
202433,544
202333,606
202233,928
202134,202
202034,063