Somonauk

Population: 1,592
Median household income: $81,731
Median home value: $221,500

Somonauk is a community in DeKalb County, Illinois, home to 1,592 residents. At $81,731, its median household income sits above DeKalb County's $69,022.

From 2019 to 2023, Somonauk's population declined 25.1% from 2,125 to 1,592, while its median home value rose 31.1% from $168,900 to $221,500.

Owners occupy 72.2% of the area's occupied homes. The median resident is 46.1 years old.

Demographics

ACS 2019–2023

Population: 1,592
Median age: 46.1 yrs
Median household income: $81,731
Median home value: $221,500
Median gross rent: $883
Housing units: 692
Homeownership rate: 72.2%
Bachelor's degree or higher: 22.7%
Unemployment rate: 4.1%

Trends

ACS 5-year · 2019–2023

Population

2,1251,592

Median household income

$65,139$81,731

Median home value

$168,900$221,500

Median gross rent

$988$883

Year	Population	Median household income	Median home value	Median gross rent
2019	2,125	$65,139	$168,900	$988
2020	2,027	$71,375	$174,600	$932
2021	1,757	$72,500	$181,900	$950
2022	1,797	$78,750	$207,700	$888
2023	1,592	$81,731	$221,500	$883

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 54.2%

5 to 1716.0%

18 to 248.1%

25 to 3410.8%

35 to 448.9%

45 to 5415.3%

55 to 6412.9%

65 to 7414.9%

75 and over8.9%

	Count	Share
Under 5	67	4.2%
5 to 17	255	16.0%
18 to 24	129	8.1%
25 to 34	172	10.8%
35 to 44	142	8.9%
45 to 54	243	15.3%
55 to 64	205	12.9%
65 to 74	238	14.9%
75 and over	141	8.9%

Race & ethnicity

	Count	Share
White (non-Hispanic)	1,444	90.7%
Black or African American	15	0.9%
American Indian & Alaska Native	0	0.0%
Asian	0	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	24	1.5%
Two or more races	42	2.6%
Hispanic or Latino (any race)	67	4.2%

Educational attainment (age 25+)

No high school diploma3.8%

High school graduate37.1%

Some college or associate's36.5%

Bachelor's degree15.2%

Graduate or professional degree7.4%

	Count	Share
No high school diploma	43	3.8%
High school graduate	423	37.1%
Some college or associate's	416	36.5%
Bachelor's degree	174	15.2%
Graduate or professional degree	85	7.4%

Commute to work

Mean travel time to work: 28 min

Drove alone84.3%

Carpooled3.2%

Public transit2.6%

Walked2.3%

Bicycle0.3%

Worked from home6.4%

Other means0.9%

How workers get to work

	Count	Share
Drove alone	654	84.3%
Carpooled	25	3.2%
Public transit	20	2.6%
Walked	18	2.3%
Bicycle	2	0.3%
Worked from home	50	6.4%
Other means	7	0.9%

Travel time

	Count	Share
Under 15 min	238	32.8%
15 to 29 min	152	20.9%
30 to 44 min	161	22.2%
45 to 59 min	102	14.0%
60+ min	73	10.1%

Households

Average household size: 2.40
Poverty rate: 5.9% (94 of 1,592)

	Count	Share
Family households	444	67.1%
Nonfamily households	218	32.9%

Housing

Median year structure built: 1971

Occupancy

	Count	Share
Occupied	662	95.7%
Vacant	30	4.3%

Tenure (of occupied units)

	Count	Share
Owner-occupied	478	72.2%
Renter-occupied	184	27.8%

1-unit, detached68.5%

1-unit, attached15.2%

2 to 4 units8.5%

5 to 19 units4.2%

20 or more units3.6%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	474	68.5%
1-unit, attached	105	15.2%
2 to 4 units	59	8.5%
5 to 19 units	29	4.2%
20 or more units	25	3.6%
Mobile home & other	0	0.0%

Geography

Place GEOID: 1770460
Type (LSAD): 47
Land area: 2.5 sq mi
Water area: 0.01 sq mi
Center point: 41.6347, -88.6875