Somonauk
Property Data

Dekalb County, Illinois

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directly sourced from county assessors.

Dekalb County

ZIP Codesby Total Population

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Total Population
4,2854,285

DistributionTotal Population

No data available

Demographics

Total Population

4,285

Median Age

48.6

Population Under 18

14.5%

Population 65+

22.4%

Total Households

1,807

Average Household Size

2.37

Somonauk, IL housing and demographic statistics

ZIP/ZCTA areas can cross city and county boundaries. Each row describes its ZIP/ZCTA area, not the city as a whole. These values are not combined into a city estimate.

Individual ZIP/ZCTA estimates associated with Somonauk, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
605524,285$113,411$1,38884.6%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions. — indicates unavailable or suppressed data.

Area property statistics

Recorded property characteristics and residential parcel-sale records for Somonauk, IL. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

City measurements cover the selected county's portion of the city.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records9Recorded——
Average recorded sale amount———

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: April 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Somonauk, IL
MeasureSomonauk, ILDekalb County, IL
Median recorded sale amount$361,500$300,000
Recorded amount, 10th percentile$223,300$200,000
Recorded amount, 90th percentile$508,400$450,000
Average recorded floor area (sq ft)1,8111,710
Average recorded bedrooms3.22.9
Average recorded bathrooms2.22.1
Median year built19971993
Condominium share of properties0%0.2%

Somonauk, IL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 23, 2026. Calculated . Published . Dataset last refreshed: .

Dekalb County, IL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 23, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

No supported recent-period estimates are available for this area. Recorded statistics above remain available.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: April 2026; not a verified completeness date.

Properties in Somonauk

Showing page 1 of properties

1 Fawn Drive

Somonauk, IL 60552

100 Burlington Street

Somonauk, IL 60552

100 Cook Court

Somonauk, IL 60552

100 East Ann Street

Somonauk, IL 60552

100 East Lafayette Street

Somonauk, IL 60552

100 Maple Street

Somonauk, IL 60552

100 South Cherry Street

Somonauk, IL 60552

100 South Depot Street

Somonauk, IL 60552

100 South Gage Street

Somonauk, IL 60552

100 South Green Street

Somonauk, IL 60552

100 South Sycamore Street

Somonauk, IL 60552

100 Terrace Court

Somonauk, IL 60552

100 West Ann Street

Somonauk, IL 60552

100 West Lafayette Street

Somonauk, IL 60552

1000 Fox Trail Lane

Somonauk, IL 60552

1000 Prairie View Drive

Somonauk, IL 60552

1005 Fox Trail Lane

Somonauk, IL 60552

1005 Prairie View Drive

Somonauk, IL 60552

1010 Fox Trail Lane

Somonauk, IL 60552

1010 Prairie View Drive

Somonauk, IL 60552

1015 Fox Trail Lane

Somonauk, IL 60552

1015 Prairie View Drive

Somonauk, IL 60552

102 Burlington Street

Somonauk, IL 60552

1020 Prairie View Drive

Somonauk, IL 60552

1025 Fox Trail Lane

Somonauk, IL 60552

1025 Prairie View Drive

Somonauk, IL 60552

1025 Somonauk Road

Somonauk, IL 60552

10290 Suydam Road

Somonauk, IL 60552

10290 Suydam Road

Somonauk, IL 60552

10290 Suydam Road

Somonauk, IL 60552

103 Burlington Street

Somonauk, IL 60552

1030 Prairie View Drive

Somonauk, IL 60552

1035 Fox Trail Lane

Somonauk, IL 60552

1035 Prairie View Drive

Somonauk, IL 60552

1040 Prairie View Drive

Somonauk, IL 60552

1040 Somonauk Road

Somonauk, IL 60552

10421 Suydam Road

Somonauk, IL 60552

1045 Fox Trail Lane

Somonauk, IL 60552

1045 Prairie View Drive

Somonauk, IL 60552

10469 Sanderson Road

Somonauk, IL 60552

105 Cook Court

Somonauk, IL 60552

105 East Ann Street

Somonauk, IL 60552

105 East Dekalb Street

Somonauk, IL 60552

105 North Depot Street

Somonauk, IL 60552

105 North East Street

Somonauk, IL 60552

105 North Sycamore Street

Somonauk, IL 60552

105 North Street

Somonauk, IL 60552

105 South Cherry Street

Somonauk, IL 60552

105 South Gage Street

Somonauk, IL 60552

105 Terrace Court

Somonauk, IL 60552

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