City

Somonauk, IL

1 ZIP code  ·  DeKalb County  ·  Illinois

👥4,589Population
💰$122,375Median HH Income▲ 60% above avg
🎂48.5Median Age
🏠$245,300Median Home Value▼ 12% below avg
🎓36.3%College Grads≈ Avg
📊4.6%Unemployment≈ Avg
People & Population (ACS 2023 — weighted avg)
♂ Male 47.7% Female 52.3% ♀

Race & Ethnicity

White: 92.1%Hispanic: 2.7%Black: 1.5%Asian: 0.6%Other: 2.6%Race
White92.1%
Hispanic2.7%
Black1.5%
Asian0.6%
Other2.6%

Age Breakdown

Under 5
4%
5–17
12%
18–24
10%
25–44
20%
45–64
36%
65+
11%

Key Indicators

Median Age48.5 yrs
Avg HH Size2.46
Below Poverty5.5% ▼ 45% below avg
College Grads36.3% ≈ Avg
Unemployment4.6% ≈ Avg
No HS Diploma11 (0.3%)
HS Graduate816 (24.4%)
Some College796 (23.8%)
Associates507 (15.2%)
Bachelors232 (6.9%)
Graduate Degree983 (29.4%)

Education

No HS: 0.3%HS Grad: 24.4%Some College: 23.8%Associates: 15.2%Bachelors: 6.9%Graduate: 29.4%Edu
No HS0.3%
HS Grad24.4%
Some College23.8%
Associates15.2%
Bachelors6.9%
Graduate29.4%
Housing & Income

Housing Tenure

Owner: 84.8%Renter: 15.2%Tenure
Owner84.8%
Renter15.2%

Home Value Distribution

Under $50k
1%
$50k–$100k
2%
$100k–$150k
1%
$150k–$200k
21%
$200k–$300k
43%
$300k–$500k
25%
Over $500k
6%

Financials

Median HH Income$122,375 ▲ 60% above avg
Median Home Value$245,300 ▼ 12% below avg
Home/Income Ratio2.0x (nat avg ~3.5x)
Median Rent$1,306/mo
Total Housing Units1,999
Vacant Units135

Income Distribution

Under $25k
7%
$25k–$50k
7%
$50k–$75k
13%
$75k–$100k
12%
$100k–$150k
30%
$150k–$200k
19%
Over $200k
12%
Employment & Commute

How People Get to Work

Drove Alone
88%
Public Transit
1%
Walked
1%
Work From Home
10%

Commute Time

Under 15 min
19%
15–30 min
26%
30–45 min
17%
Over 45 min
37%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
11%
1960s–1970s
18%
1980s–1990s
13%
2000+
56%
About Somonauk, IL

Somonauk is a city in Illinois, located in DeKalb County. The city spans 1 ZIP code and is home to approximately 4,589 residents. It is a mature city, with a median age of 48.5 years.

Economically, Somonauk is a upper-middle-income community. The median household income of $122,375 is significantly above the national average. Approximately 5.5% of residents live below the poverty line. The unemployment rate is 4.6%, near the national average.

The real estate market in Somonauk is an affordable housing market. Median home values stand at $245,300, which is near the national average. Renters typically pay around $1,306 per month. Homeownership is high at 84.8%, typical of suburban and family-oriented communities.

The population of Somonauk is moderately educated. 36.3% of adults hold a bachelor's degree or higher — near the national average. The community is primarily White (92.11%).

Somonauk, IL offers residents above-average earning potential within Illinois.

ZIP Codes in Somonauk
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
60552 4,589 $122,375 $245,300 $1,306 4.6% 36.3% 84.8%