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Lee County, IL
14 cities and towns and 14 ZIP codes in Lee County, Illinois.
Population
33,869
Land area
725sq mi
People per sq mi
47
ZIP codes
14
Cities and towns in Lee County
Lee County at a glance
- Lee County is 80% less dense than Illinois as a whole.
- The median household income is $70,292, 16% below the Illinois median of $83,390.
- A typical owner-occupied home is valued at $154,600 (41% below Illinois) and median rent is $894 a month.
- Its largest cities are Dixon (14,910), Amboy (2,384) and Franklin Grove (988).
Local data for Lee County, IL
Counts from official public data
Housing and community stats
Lee County, IL, American Community Survey 2020-2024
Median household income
$70,292
Poverty rate
11.8%
Median home value
$154,600
Prices +8.8% in a year
Median rent
$894/mo
Homeownership
73.6%
Bachelor's or higher
19.4%
Median age
43.1
Average commute
24.6 min
Largest reported origins and ancestries: German Americans (9,563), Irish Americans (5,192), Mexican Americans (1,711).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.7%
Aug 2026, -0.9 pts in a year
Average annual pay
$63,207
12,642 jobs, 2025
Income per person
$55,487
BEA, 2024
Federal spending
$245M
FY 2026, $7,185 per person
PPP loans
$69.5M
1,394 loans, 8,178 jobs reported
Campaign donations
$77.7K
Itemized, 2026 cycle
How people get to work
Lee County, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone82.0%
- Carpooled9.5%
- Public transit0.6%
- Walked1.2%
- Bicycle0.2%
- Taxi, ride-hailing, motorcycle or other1.0%
- Worked from home5.5%
Average one-way commute: 24.6 minutes for people who do not work from home.
Environment and hazard risk
Lee County, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: strong wind
Storm events since 1996
471
Most often thunderstorm wind
Flood insurance policies
93
0.6% of homes, county
July high / Jan low
83° / 12°F
Hazards, floods and storm historyCheck a flood zone8 historic places
Health statistics
Share of adults in Lee County, IL, CDC PLACES estimates
Obesity
38.9%
U.S. 33.3% +5.6 pts
Diabetes
12.8%
U.S. 12.1% +0.7 pts
Smoking
15.3%
U.S. 12.8% +2.5 pts
Uninsured (18-64)
9.1%
U.S. 11.1% -2.0 pts
Cities, towns and ZIP codes in Lee County
Population shown
Frequently asked questions
- What is the largest city in Lee County, IL?
- Dixon is the largest city or town in Lee County, with about 14,910 residents.
- How many ZIP codes are in Lee County?
- Lee County includes 14 ZIP Code Tabulation Areas, including 60530, 60553, 61006, 61021, 61031.
- What is the population of Lee County, IL?
- About 33,869 people live in Lee County, based on American Community Survey 5-year estimates.
- What counties border Lee County?
- Lee County borders LaSalle County, DeKalb County, Whiteside County, Ogle County, Bureau County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023