Lee County, IL ZIP Codes

Illinois (IL)  ·  14 ZIP codes  ·  14 cities
14
ZIP codes
34,049
population (2021)
-5.5%
pop change since 2010
17103
FIPS code
Lee County ZIP code map
About Lee County
Lee County is located in Illinois and contains 14 ZIP codes across 14 cities and communities. The county's population was 34,049 as of 2021, a decrease of 5.5% from 36,031 in 2010. The timezone is Mountain Time (observes DST). The Federal Information Processing System (FIPS) code for Lee County is 17103.
Population
2021 population34,049
2010 population36,031
Change-5.5%
County details
StateIllinois
FIPS code17103
TimezoneMountain
Daylight savingYes
Cities in Lee County
ZIP codes for Lee County, IL (14)

Demographics & statistics

34,602
Population
43.2
Median age
$64,207
Median household income
$33,290
Per capita income
$163,509
Median home value
$963
Median monthly rent
73.5%
Home ownership
9.4%
Poverty rate
3.5%
Unemployment
11,151
Housing units
18.1%
Bachelor's or higher

Age distribution

Male Female
853
Under 5
782
883
5–9
810
1,138
10–14
1,044
1,001
15–19
918
979
20–24
898
2,414
25–34
2,212
2,217
35–44
2,033
2,192
45–54
2,009
1,417
55–59
1,298
1,239
60–64
1,135
2,087
65–74
1,913
1,057
75–84
968
577
85+
528
← Male
Female →

Age summary

GroupCount%
Under 186,70523.0%
18 and over27,89777.0%
65 and over7,13017.8%
Median age43.2 years

Race & ethnicity

White 84.5%
Black or African American 5%
Two or more races 4.8%
Hispanic or Latino 4%
Other race 1.1%
Asian 0.5%
GroupCount%
White30,45984.5%
Black or African American1,7955%
Two or more races1,7394.8%
Hispanic or Latino1,4364%
Other race4041.1%
Asian1920.5%

Household income

Under $10k 4.0%
$10k–$15k 3.6%
$15k–$25k 7.5%
$25k–$35k 7.0%
$35k–$50k 9.6%
$50k–$75k 19.9%
$75k–$100k 14.1%
$100k–$150k 18.9%
$150k–$200k 9.9%
$200k+ 5.5%
Range% of households
Under $10k4.0%
$10k–$15k3.6%
$15k–$25k7.5%
$25k–$35k7.0%
$35k–$50k9.6%
$50k–$75k19.9%
$75k–$100k14.1%
$100k–$150k18.9%
$150k–$200k9.9%
$200k+5.5%
Median income$64,207

Housing

Home values

Under $50k 6.8%
$50k–$100k 18.6%
$100k–$150k 18.8%
$150k–$200k 20.4%
$200k–$300k 22.1%
$300k–$500k 11.8%
$500k–$1M 1.3%
$1M+ 0.1%

Housing overview

MetricValue
Median home value$163,509
Median rent / month$963
Owner occupied73.5%
Renter occupied26.5%
Vacant9.2%
Single-family detached86.9%
Large apartment buildings1.8%
Mobile homes4.1%
Median rooms6.5
Avg household size (owned)2.60

Year built

Era%
2020 or later0.0%
2010–20191.2%
2000–20098.0%
1990–19999.8%
1980–19895.5%
1970–19799.6%
1960–19698.9%
1950–19597.4%
1940–19495.1%
1939 or earlier44.3%

Bedrooms

Size% of units
No bedroom (studio)0.6%
1 bedroom5.5%
2 bedrooms22.7%
3 bedrooms45.8%
4 bedrooms17.5%
5+ bedrooms8.0%

Vehicles per household

Vehicles% of households
No vehicle4.5%
1 vehicle26.1%
2 vehicles39.1%
3 or more30.4%

Heating fuel

Fuel type%
Utility gas46.7%
Electricity19.4%
Propane / LP gas30.7%
Fuel oil0.7%
Wood1.0%
No fuel used0.2%

Households & families

Household typeCount%
Married-couple family6,23653.8%
Cohabiting couple1,2418.0%
Male householder, no spouse2,54219.9%
Female householder, no spouse3,78418.2%
Households with children under 183,49729.1%
Households with seniors (65+)4,72532.3%
Average household size2.64

Marital status

StatusMaleFemale
Never married34.1%27.2%
Married53.2%55.3%
Separated1.8%0.6%
Widowed3.0%8.8%
Divorced7.9%8.1%

Education

Less than 9th grade 1.5%
Some HS, no diploma 6.9%
HS graduate 38.0%
Some college, no degree 26.4%
Associate's degree 9.1%
Bachelor's degree 12.6%
Graduate / professional 5.5%
Metric%
HS diploma or higher91.6%
Bachelor's or higher18.1%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool51312.1%
Kindergarten3106.7%
Elementary school3,02644.9%
High school1,62220.0%
College / grad school1,28016.4%

Employment

Industry of employment

Education & healthcare 22.2%
Manufacturing 17.8%
Retail trade 9.7%
Professional & management 7.8%
Transportation & utilities 7.4%
Arts, food & hospitality 7.0%
Construction 6.1%
Agriculture & mining 5.1%
Finance & real estate 4.8%
Wholesale trade 3.9%
Other services 3.7%
Public administration 3.2%
Information 1.1%

Occupation

Category%
Management, business & arts27.7%
Service17.6%
Sales & office19.4%
Natural resources & construction11.4%
Production & transportation23.9%

Employment type

Type%
Private sector79.3%
Government13.9%
Self-employed6.9%
Unpaid family workers0.0%

Commute

Method%
Drive alone80.1%
Carpool7.4%
Public transit0.3%
Walk1.6%
Other means1.4%
Avg commute (minutes)30.5

Poverty

All people 9.4%
Under 18 years 8.1%
18 and over 9.7%
Married-couple families 4.6%
Female-led households 13.7%

Income support

Source% of households
Social Security33.7%
Retirement income24.0%
Supplemental Security4.7%
Cash public assistance1.5%
Food stamps / SNAP12.5%

Health indicators

Condition%
High blood pressure34.2%
High cholesterol33.5%
Heart disease7.0%
Stroke3.2%
Asthma9.6%
Arthritis27.3%
Kidney disease3.0%
Pulmonary disease7.7%
Cancer7.3%
Behavior / access%
Binge drinking15.3%
No physical activity25.2%
Less than 7 hrs sleep32.1%
Fair or poor health14.6%
Poor mental health12.7%
Poor physical health10.3%
No health insurance10.9%
Visited doctor (checkup)76.8%
Visited dentist65.5%
Cholesterol screening90.1%
Teeth loss14.4%

Veterans & disability

VeteransCount%
Civilian veterans1,9346.0%
Disability%
Any disability13.8%
Under 183.6%
18–64 years12.1%
65 and over33.8%

Health insurance coverage

Type%
Private insurance71.8%
Public insurance37.6%
Uninsured under 191.7%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only32,96793.3%
Spanish3860.9%
Other Indo-European2490.7%
Asian & Pacific Islander950.1%
Other languages400.1%

Place of birth & citizenship

OriginCount%
Native born (US)33,83698.6%
Born in same state33,70198.2%
Born in different state28,70284.4%
Foreign born1350.4%
Naturalized citizen7661.4%
Not a US citizen30755.1%

Ancestry

AncestryCount%
Italian5,63716.3%
French3,72410.8%
Arab1,5544.5%
English1,0463%
Polish8172.4%
AncestryCount%
German2380.7%
Dutch1880.5%
Irish1540.4%
Norwegian260.1%

Technology access

Metric% of households
Computer access37.8%
Internet access91.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

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