Housing data for Somonauk Township, IL
Somonauk Township, IL has an estimated 1,827 residents and 744 homes (US Census Bureau, 2020–2024 American Community Survey).
It is a township in DeKalb County.
18.2% of households rent.
The median gross rent is $1,375 a month.
Its population shrank measurably since 2015–2019 (−15.2%).
Figures last updated on .
- Residents
- 1,827 (±249)
- Housing units
- 744 (±80)
- Households that rent
- 18.2%
- Median gross rent
- $1,375
- Residents since 2015–2019
- −15.2%
What stands out in Somonauk Township
Homes in buildings of 5 or more units: 0.3% (±7.0 points) in Somonauk Township, lower than in DeKalb County (20.7%).
Households that rent: 18.2% (±5.9 points) in Somonauk Township, lower than in DeKalb County (38.6%).
Median household income: $100,119 (±$11,602) in Somonauk Township, higher than in DeKalb County ($70,724).
Households that moved in since 2020: 16.4% (±6.4 points) in Somonauk Township, lower than in DeKalb County (29.3%).
- Types of homes in Somonauk Township
- Renters and owners in Somonauk Township
- Income and affordability in Somonauk Township
- How long people stay in Somonauk Township
Housing in Somonauk Township at a glance
- Median rent: $1,375 median gross rent a month
- Rent by bedrooms: $1,111 median gross rent, 2 bedrooms (Small sample: wide margin of error)
- Rent burden: 41.0% of renters pay 30% or more of income
- Renters and owners: 18.2% of households rent
- Income and affordability: $100,119 median household income
- Home values: $263,900 median home value
- Homeowner costs: $1,986 median monthly cost with a mortgage
- Property taxes: $6,002 median real estate taxes a year
- Types of homes: 0.3% of homes are in buildings of 5 or more units
- Bedrooms: 81.3% of homes have 3 or more bedrooms
- Age of homes: 60.6% of homes were built before 1980
- Vacancy rate: 10.3% rental vacancy rate (Small sample: wide margin of error)
- Heating fuel: 84.3% heat with utility gas
- Commute and cars: 27.2 minutes average trip to work
- Growth: −15.2% residents since 2015–2019
- How long people stay: 16.4% moved in since 2020
- Crowding and facilities: 0.7% of homes have more than 1 person per room (Small sample: wide margin of error)
Somonauk Township against DeKalb County, its state and the nation
| Somonauk Township | DeKalb County | Illinois | United States | |
|---|---|---|---|---|
| Residents | 1,827 (±249) | 100,703 (exact) | 12,694,798 (exact) | 334,922,499 |
| Housing units | 744 (±80) | 41,678 (±77) | 5,457,452 (±471) | 143,775,355 |
| Households that rent | 18.2% (±5.9 points) | 38.6% (±1.5 points) | 32.9% (±0.2 points) | 34.8% |
| Median gross rent | $1,375 (±$450) | $1,049 (±$33) | $1,274 (±$5) | $1,413 |
| Median household income | $100,119 (±$11,602) | $70,724 (±$2,546) | $83,390 (±$362) | $80,734 |
| Median home value | $263,900 (±$21,434) | $243,600 (±$5,310) | $263,300 (±$797) | $332,700 |
| Median real estate taxes (a year) | $6,002 (±$432) | $5,974 (±$128) | $5,298 (±$22) | $3,119 |
| Built before 1980 | 60.6% (±12.0 points) | 52.7% (±2.8 points) | 63.4% (±0.2 points) | 49.7% |
| Average commute | 27.2 minutes (±3.9) | 26.7 minutes (±1.1) | 27.8 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 90.5% (±4.7 points) | 92.7% (±1.2 points) | 90.8% (±0.1 points) | 91.0% |
| Median age of residents | 44.5 years (±5.1) | 32.7 years (±0.4) | 39.0 years (±0.1) | 38.9 years |
Somonauk Township covers 19.3 square miles of land, about 95 residents per square mile (Census Bureau Gazetteer).
How Somonauk Township has changed since 2015–2019
| 2015–2019 | 2020–2024 | Amount of change | Verdict | |
|---|---|---|---|---|
| Residents | 2,154 (±189) | 1,827 (±249) | −15.2% | Measurable decrease |
| Housing units | 881 (±58) | 744 (±80) | −15.6% | Measurable decrease |
| Median gross rent | $1,082 (±$128) | $1,375 (±$450) | +27.1% | No measurable change after inflation |
| Median home value | $180,300 (±$13,645) | $263,900 (±$21,434) | +46.4% | Up after inflation |
| Median household income | $70,500 (±$10,756) | $100,119 (±$11,602) | +42.0% | No measurable change after inflation |
| Median owner cost with a mortgage | $1,667 (±$114) | $1,986 (±$249) | +19.1% | No measurable change after inflation |
| Median real estate taxes | $4,800 (±$262) | $6,002 (±$432) | +25.0% | No measurable change after inflation |
| Households that rent | 30.5% (±6.1 points) | 18.2% (±5.9 points) | −12.3 percentage points | Measurable decrease |
| Rental vacancy rate | 3.8% (±5.9 points) | 10.3% (±15.8 points) | +6.5 percentage points | Not a measurable change |
The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.
Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.
The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.
Crime reported to police in DeKalb County
Somonauk Township has no police department of its own in the FBI’s figures, so this is the figure for DeKalb County as a whole.
In 2025, the police departments that report for DeKalb County recorded 164 violent and 1,287 property crimes per 100,000 residents.
A county-wide figure describes the whole county, not this place; crime varies from one community to the next.
ZIP codes in Somonauk Township
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 60552 | 45% | 4,285 | $1,388 | $257,400 | $113,411 |
| 60548 | 18% | 11,721 | $1,045 | $262,100 | $82,957 |
A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.
Places near Somonauk Township
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| Somonauk | 3.0 mi | $993 | $234,400 | 26.1% |
| Sandwich Township | 3.3 mi | $1,029 | $258,700 | 24.4% |
| Sandwich | 3.9 mi | $1,029 | $255,700 | 24.5% |
| Lake Holiday | 4.1 mi | $1,496 | $256,400 | 7.8% |
| Victor Township | 4.4 mi | $1,889 | $297,700 | 41.0% |
| Squaw Grove Township | 5.4 mi | $1,340 | $312,400 | 23.0% |
| Northville Township | 5.9 mi | $1,132 | $272,700 | 9.5% |
| Hinckley | 6.9 mi | $1,355 | $291,700 | 25.6% |
Places in Illinois most like Somonauk Township
| Place | Median gross rent | Median home value | Median household income | Households that rent |
|---|---|---|---|---|
| Squaw Grove Township | $1,340 | $312,400 | $91,339 | 23.0% |
| Zuma Township | $1,275 | $210,500 | $84,468 | 17.2% |
| Carbon Hill | $1,271 | $238,600 | $103,125 | 19.7% |
| Seneca | $1,149 | $227,500 | $86,830 | 18.7% |
| Wesley Township | $1,328 | $246,700 | $78,031 | 17.2% |
| North Utica | $1,292 | $237,500 | $104,028 | 10.3% |
Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Illinois.
HUD Fair Market Rent for Somonauk Township, fiscal year 2027
| Studio | 1 bedroom | 2 bedrooms | 3 bedrooms | 4 bedrooms |
|---|---|---|---|---|
| $1,052 | $1,155 | $1,481 | $2,006 | $2,301 |
HUD income limits for Somonauk Township, fiscal year 2026
| Household size | Extremely low (30%) | Very low (50%) | Low (80%) |
|---|---|---|---|
| 1 person | $23,350 | $38,900 | $62,300 |
| 2 people | $26,700 | $44,450 | $71,200 |
| 3 people | $30,050 | $50,050 | $80,100 |
| 4 people | $33,350 | $55,600 | $88,950 |
| 5 people | $38,680 | $60,050 | $96,100 |
| 6 people | $44,360 | $64,500 | $103,200 |
| 7 people | $50,040 | $68,950 | $110,300 |
| 8 people | $55,720 | $73,400 | $117,450 |
These are the limits HUD sets for its housing programs in the DeKalb County, IL HUD Metro FMR Area, where HUD’s median family income for fiscal year 2026 is $112,500.
A program can use its own limits; tax-credit and local programs often do.
Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.
Margins of error are at the 90% confidence level.
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Questions about Somonauk Township
What is the average rent in Somonauk Township, IL?
The Census Bureau publishes the median rather than the average: the median gross rent in Somonauk Township is $1,375 (±$450) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.
Are renters in Somonauk Township rent-burdened?
41.0% of renting households in Somonauk Township pay 30% or more of their income in gross rent, the share housing researchers usually call rent-burdened (2020–2024 American Community Survey).
How many renters are there in Somonauk Township?
Somonauk Township has an estimated 130 (±43) renting households, 18.2% of its occupied homes (2020–2024 American Community Survey).
What is the median household income in Somonauk Township?
The median household income in Somonauk Township is $100,119 (±$11,602) a year (2020–2024 American Community Survey).
What is the average home value in Somonauk Township, IL?
The Census Bureau publishes the median: $263,900 (±$21,434) for owner-occupied homes in Somonauk Township (2020–2024 American Community Survey).
What is the average mortgage payment in Somonauk Township?
The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in Somonauk Township, IL is $1,986 (±$249) a month, including taxes, insurance and utilities.
Is Somonauk Township growing?
In Somonauk Township, the number of residents went from 2,154 in 2015–2019 to 1,827 in 2020–2024 (−15.2%), a measurable decrease.
What ZIP codes are in Somonauk Township?
The ZIP codes that cover Somonauk Township are 60552, 60548.
What is the median rent in ZIP code 60552?
The median gross rent in ZIP Code Tabulation Area 60552 is $1,388 (±$389) a month (2020–2024 American Community Survey).
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — Somonauk township, DeKalb County, Illinois
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Somonauk township, DeKalb County, Illinois
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — Somonauk township, DeKalb County, Illinois
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — Somonauk township, DeKalb County, Illinois
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — Somonauk township, DeKalb County, Illinois
- Total Population (B01003), 2015–2019 ACS 5-year estimates — Somonauk township, DeKalb County, Illinois
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — Somonauk township, DeKalb County, Illinois
- HUD Fair Market Rents, fiscal year 2027: DeKalb County, IL HUD Metro FMR Area
- HUD Income Limits, fiscal year 2026: DeKalb County, IL HUD Metro FMR Area
- US Census Bureau, American Community Survey 2020–2024 5-year estimates for ZIP Code Tabulation Areas
- Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items, US Bureau of Labor Statistics: annual averages 2019 and 2024
- US Census Bureau, 2024 Gazetteer Files
To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Somonauk township, DeKalb County, Illinois (county subdivision:70473, in state:17 county:037).
Each estimate (E or PE) has a margin of error beside it (M or PM).
The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.
The API needs a free key.
DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.
Figures last updated on .