What are the schools like in Somonauk, IL?

Somonauk is served primarily by Somonauk CUSD 432. The district operates 1 elementary schools, 1 middle schools, and 1 high schools with a student-to-teacher ratio of 11.8:1.

What is the median household income in Somonauk?

The median household income in Somonauk, IL is $78,750 according to the most recent US Census American Community Survey 5-year estimates. The unemployment rate is 3.4%.

What is the weather like in Somonauk, IL?

Somonauk has an average high temperature of 30.5°F in January and 84.4°F in July. Annual precipitation averages 42.4 inches and annual snowfall averages 29.8 inches.

Somonauk, IL Cost of Living, Crime & Is It a Good Place to Live? (2026)

Q: Is Somonauk, IL affordable or expensive?

Somonauk's cost of living index is 103, where 100 represents the national average. This means Somonauk is 3% more expensive than the average US city. The median home value is $207,700 and the median rent is $888 per month.

Q: What is the crime rate in Somonauk, IL?

Somonauk has a violent crime rate of 167.8 incidents per 100,000 residents and a property crime rate of 1212.6 per 100,000. The national average violent crime rate is approximately 380 per 100,000.

Is Somonauk, IL a Good Place to Live?

Somonauk is a small town of 1,797 in Illinois, with a median household income of $78,750 and a 3.4% unemployment rate. Its cost of living index is 103 (US average = 100), which is 3% above the national average.

Strengths: Somonauk stands out for below-average home prices, solid school ratings (B).

Trade-offs: No major red flags stand out in the available data. Whether Somonauk is right for you depends on your priorities — the full breakdown is below.

All Somonauk city data on this page comes from official government sources — the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.

Cost of Living

Index: 102.6

Somonauk's overall cost of living index is 102.6, where 100 represents the US national average. Living in Somonauk costs roughly 3% more than the average American city.

Metric	Somonauk, IL	National Avg
Median Home Value	$207,700	$244,900
Median Monthly Rent	$888	$1,163
Homeownership Rate	71.6%	65.9%
Median Household Income	$78,750	$74,755

Crime & Safety

Very Safe

Somonauk's violent crime rate is 167.8 per 100,000 residents — 56% lower than the national average of ~380 per 100,000.

Violent Crime

167.8 /100k

Property Crime

1212.6 /100k

Vertical marker = national average. Source: FBI UCR Program.

Schools & Education

Somonauk is served primarily by Somonauk CUSD 432. The student-to-teacher ratio is 11.8:1 (better than the national average of ~16:1).

Metric	Somonauk, IL	National Avg
School District	Somonauk CUSD 432	—
Elementary Schools	1	—
Middle Schools	1	—
High Schools	1	—
Student/Teacher Ratio	11.8:1	16:1
Bachelor's Degree or Higher	20.7%	35.4%
High School Diploma or Higher	96.0%	91.1%

Weather & Climate

Somonauk sees average highs of 30.5°F in January and 84.4°F in July, with 42.4 inches of annual precipitation and 29.8 inches of snow per year.

Metric	Somonauk, IL
Average High — January	30.5°F
Average High — July	84.4°F
Annual Precipitation	42.4"
Annual Snowfall	29.8"

Demographics

Metric	Somonauk, IL	National Avg
Population	1,797	—
Median Age	38.9	38.9
Unemployment Rate	3.4%	3.7%
Avg Commute Time	29.5 min	26 min
White (non-Hispanic)	95.0%	59.3%
Black or African American	0.1%	13.6%
Hispanic or Latino	2.4%	18.9%
Asian	0.0%	6.3%
Under 18	24.0%	22.2%
65 and over	20.3%	16.8%

Nearby Cities

Lake Holiday, IL 2 mi Sandwich, IL 4 mi Leland, IL 6 mi Millington, IL 7 mi Sheridan, IL 7 mi

ZIP Codes in Somonauk

Somonauk, IL is covered by 1 ZIP code:

60552

Somonauk vs Other Cities

Somonauk, IL vs Lake Holiday, IL Somonauk, IL vs Sandwich, IL Somonauk, IL vs Leland, IL Somonauk, IL vs Millington, IL Somonauk, IL vs Sheridan, IL

Frequently Asked Questions

Is Somonauk, IL affordable or expensive?

Somonauk's cost of living index is 103, where 100 is the national average. That puts Somonauk roughly 3% above the national average in cost. The median home price is $207,700 and median rent is $888/month.

What is the crime rate in Somonauk, IL?

Somonauk's violent crime rate is 167.8 per 100,000 residents — the national average is ~380 per 100,000. Property crime is 1212.6 per 100,000 (national avg ~2,100). Data from the FBI Uniform Crime Reporting Program.

What are the schools like in Somonauk?

Public schools in Somonauk are operated by Somonauk CUSD 432. The district has 1 elementary, 1 middle, and 1 high schools. The student-to-teacher ratio is 11.8:1. 20.7% of adults 25+ hold a bachelor's degree or higher.

Is Somonauk, IL a good place to live?

Somonauk, IL has a population of 1,797, a median household income of $78,750, and an unemployment rate of 3.4%. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.

What is the weather like in Somonauk?

Somonauk averages 30.5°F in January and 84.4°F in July. Annual rainfall is 42.4 inches with about 29.8 inches of snow per year. Based on NOAA 30-year climate normals (1991–2020).

What ZIP codes are in Somonauk?

Somonauk, IL is covered by 1 ZIP code: 60552.

What is the population of Somonauk?

The population of Somonauk, Illinois is 1,797 with a median age of 38.9. Source: US Census ACS 5-Year Estimates.

What are the pros and cons of living in Somonauk?

Key numbers for living in Somonauk: cost of living index 103 (100 = US average), median home $207,700, median household income $78,750, crime index 50 (100 = US average, lower is safer), schools rated B. Whether these are benefits or drawbacks depends on where you're coming from — compare Somonauk side by side with your current city to see the trade-offs.