HomeIllinoisDeKalb CountySomonauk village
Somonauk village, Illinois: commercial real estate data.
Somonauk village is a Census village of 1,569 people across 2.50 square miles of land, lying across DeKalb County and LaSalle County. Median household income is $84,583, 73.9 percent of occupied homes are owned.
65 sourced place values · tier FULL · 8 sections
Somonauk
What Somonauk is
- Census place typevillage
- Land area2.5 sq mi
- Water area0.01 sq mi
- Population per square mile of land627
- County holding the largest share of its areaDeKalb County, 85.0 percent
- Counties this place lies inDeKalb County 85.0 percent, LaSalle County 15.0 percent
Somonauk village crosses a county line. The split above is measured from the Census boundary of the place against the county boundaries, by area, so it says where the ground is and not where the town hall is.
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Somonauk
How many people live in Somonauk
- Population1,569
- Median age45.6
- Population under 18321 plus or minus 67
- Share under 1820.5 percent
- Population 65 and over402 plus or minus 96
- Share 65 and over25.6 percent
- Households659
- Family households452
- Share of households that are families68.6 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Somonauk
Income and work in Somonauk
- Median household income$84,583 plus or minus $19,599
- Per capita income$45,767
- Civilian labor force734
- Employed696
- Unemployed38 plus or minus 21
- Unemployment rate5.2 percent plus or minus 2.7
- Adults 25 and over1,122
- Adults 25 and over with a high school diploma or higher95.7 percent plus or minus 19.5
- Adults 25 and over with a bachelor degree or higher22.7 percent plus or minus 4.9
- Adults 25 and over with a graduate degree8.1 percent plus or minus 2.3
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Somonauk
Housing in Somonauk
- Housing units677
- Occupied units659
- Vacant units18 plus or minus 25
- Vacancy rate2.7 percent plus or minus 3.7
- Owner occupied487
- Renter occupied172 plus or minus 43
- Ownership rate73.9 percent
- Median owner-occupied home value$234,400
- Median gross rent, monthly$993
- Annual rent as a share of median income14.1 percent plus or minus 4.0
- Single family units596
- Share single family88.0 percent
- Units in buildings of two or more81 plus or minus 36
- Share in buildings of two or more12.0 percent plus or minus 5.0
- Mobile homes0
- Median year structure built1973
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Somonauk
How Somonauk gets to work
- Workers 16 and over who commute638
- Commuting under 15 minutes205 plus or minus 56
- Share commuting under 15 minutes32.1 percent plus or minus 7.1
- Commuting 30 minutes or more305 plus or minus 64
- Share commuting 30 minutes or more47.8 percent
- Drove alone85.1 percent
- Carpooled4.1 percent plus or minus 2.7
- Public transport0.0 percent
- Walked2.6 percent plus or minus 2.4
- Worked from home6.9 percent plus or minus 3.0
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Somonauk
SBA 504 lending to Somonauk borrowers
- Approvals1
- Gross approval$112,000
- Average approval$112,000
- Median approval$112,000
- Largest approval$112,000
- Jobs supported4
- Loans with a final outcome0
- Charged off0
- Median term300 months
- Distinct CDCs1
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Somonauk
Flood programme status in Somonauk
- Listed NFIP communities1
- Of those, participating1
- NFIP community number170190
- Currently effective map date07/18/11(M)
This community carries no Community Rating System class, so no CRS premium discount applies to it.
FEMA, National Flood Insurance Program Community Status Book, Community Status Book, as retrieved.
DeKalb County, not Somonauk
DeKalb County context, not Somonauk figures
These are DeKalb County figures. There is no place level equivalent published for any of them, so they are shown as the county backdrop and never as Somonauk measurements.
- Establishments in DeKalb County1,975
- Employment at those establishments, DeKalb County29,129
- Covered employment, DeKalb County36,272
- Average annual pay, DeKalb County$56,896
- Average weekly wage, DeKalb County$1,094
- Housing units permitted, DeKalb County257
- Of those, single family, DeKalb County180
- County product, 2024, DeKalb County$5,661,367,000
- County product change over the prior year, DeKalb County2.2 percent
- Average income of an arriving household, DeKalb County$51,918
Every figure in this section is published for DeKalb County as a whole and is not a measurement of Somonauk. It is here because a county backdrop is what a credit committee reads a place against, and it is labelled so that it can never be quoted as the place's own.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual. US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024. US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- Parcel level detail, zoning and flood zone at an address are resolved in the platform, not on this page.
SBA figures count approvals to borrowers whose address is in the place. They are not approvals for projects inside the place boundary: the tape records a borrower city and a project county, and those can differ.
Common questions
Somonauk questions, answered from the record.
How many people live in Somonauk, Illinois?
1,569, in 659 households. Somonauk village covers 2.50 square miles of land, which is 627 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Somonauk in?
Somonauk lies in more than one. By area it is 85.0 percent in DeKalb County, 15.0 percent in LaSalle County. This page sits under DeKalb County because that county holds the largest share. The split is measured from the Census boundary of the place against the county boundaries.
What is the median household income in Somonauk?
$84,583. The median owner-occupied home is valued at $234,400. Median gross rent is $993 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is Somonauk in the National Flood Insurance Program?
Yes. Somonauk appears in the FEMA Community Status Book as community 170190, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Somonauk figures?
No, and they are labelled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for DeKalb County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Somonauk.
Is zoning published for Somonauk?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning.
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