Dupo
Property Data

St. Clair County, Illinois

Explore accurate parcel and ownership records,
directly sourced from county assessors.

St. Clair County

ZIP Codesby Total Population

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Total Population
4,2324,232

DistributionTotal Population

No data available

Demographics

Total Population

4,232

Median Age

43.0

Population Under 18

19.8%

Population 65+

16.7%

Total Households

1,763

Average Household Size

2.40

Dupo, 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 Dupo, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
622394,232$61,191$91367.1%

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 Dupo, 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 records50Recorded——
Average recorded sale amount$146,800Recorded——

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: May 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Dupo, IL
MeasureDupo, ILSt. Clair County, IL
Median recorded sale amount$150,000$220,000
Recorded amount, 10th percentile$68,700$90,000
Recorded amount, 90th percentile$242,000$430,000
Average recorded floor area (sq ft)1,2581,440
Average recorded bedrooms2.93.2
Average recorded bathrooms2.62.9
Median year built19571965
Condominium share of properties0.3%0.5%

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

County input file published Oct 24, 2026. Calculated . Published . Dataset last refreshed: .

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

County input file published Oct 24, 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: May 2026; not a verified completeness date.

Properties in Dupo

Showing page 1 of properties

1

Dupo, IL 62239

1 Burch Drive

Dupo, IL 62239

10 Burch Drive

Dupo, IL 62239

100 North 2nd Street

Dupo, IL 62239

100 North 2nd Street

Dupo, IL 62239

100 North 3rd Street

Dupo, IL 62239

100 North 6th Street

Dupo, IL 62239

100 North 6th Street

Dupo, IL 62239

100 North 7th Street

Dupo, IL 62239

100 North 8th Street

Dupo, IL 62239

100 North 9th Street

Dupo, IL 62239

100 South 2nd Street

Dupo, IL 62239

100 South 2nd Street

Dupo, IL 62239

100 South 2nd Street

Dupo, IL 62239

100 South 2nd Street

Dupo, IL 62239

100 South 3rd Street

Dupo, IL 62239

100 South 5th Street

Dupo, IL 62239

1000 Columbia Road

Dupo, IL 62239

1001 Columbia Road

Dupo, IL 62239

1001 Falling Springs Drive

Dupo, IL 62239

1001 Illinois Avenue

Dupo, IL 62239

1002 Illinois Avenue

Dupo, IL 62239

1005 Columbia Road

Dupo, IL 62239

1005 Illinois Avenue

Dupo, IL 62239

1008 Illinois Avenue

Dupo, IL 62239

1009 Falling Springs Drive

Dupo, IL 62239

1009 Illinois Avenue

Dupo, IL 62239

101 Mcclure Avenue

Dupo, IL 62239

101 North 3rd Street

Dupo, IL 62239

101 North 4th Street

Dupo, IL 62239

101 North 6th Street

Dupo, IL 62239

101 North 7th Street

Dupo, IL 62239

101 North 8th Street

Dupo, IL 62239

101 North 9th Street

Dupo, IL 62239

101 South 2nd Street

Dupo, IL 62239

101 South 4th Street

Dupo, IL 62239

101 South 5th Street

Dupo, IL 62239

101 Wallace Avenue

Dupo, IL 62239

1015 Falling Springs Drive

Dupo, IL 62239

102 North 4th Street

Dupo, IL 62239

102 St

Dupo, IL 62239

1023 Imbs Station Road

Dupo, IL 62239

1031 Imbs Station Road

Dupo, IL 62239

104 North 2nd Street

Dupo, IL 62239

104 North 2nd Street

Dupo, IL 62239

104 North 3rd Street

Dupo, IL 62239

104 North 4th Street

Dupo, IL 62239

104 North 7th Street

Dupo, IL 62239

104 North 8th Street

Dupo, IL 62239

104 South 3rd Street

Dupo, IL 62239

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