Illiopolis
Property Data

Sangamon County, Illinois

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

Sangamon County

ZIP Codesby Total Population

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Total Population
1,4121,412

DistributionTotal Population

No data available

Demographics

Total Population

1,412

Median Age

39.8

Population Under 18

26.4%

Population 65+

21.0%

Total Households

564

Average Household Size

2.50

Illiopolis, 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 Illiopolis, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
625391,412$82,750$66387.6%

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 Illiopolis, 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 records4Recorded——
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 Illiopolis, IL
MeasureIlliopolis, ILSangamon County, IL
Median recorded sale amount—$222,500
Recorded amount, 10th percentile—$100,000
Recorded amount, 90th percentile—$434,200
Average recorded floor area (sq ft)1,6961,934
Average recorded bedrooms33.1
Average recorded bathrooms1.72.2
Median year built19591977
Condominium share of properties0%1.4%

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

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

Sangamon 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: April 2026; not a verified completeness date.

Properties in Illiopolis

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Illiopolis, IL 62539

1 Circle Drive

Illiopolis, IL 62539

1 Circle Drive

Illiopolis, IL 62539

10 Circle Drive

Illiopolis, IL 62539

100 Beaman Drive

Illiopolis, IL 62539

100 Dye Road

Illiopolis, IL 62539

100 Louisa Street

Illiopolis, IL 62539

1000 Miles Street

Illiopolis, IL 62539

101 6th Street

Illiopolis, IL 62539

102 Louisa Street

Illiopolis, IL 62539

102 Prairie Run

Illiopolis, IL 62539

103 East Matilda Street

Illiopolis, IL 62539

105 2nd Street

Illiopolis, IL 62539

105 2nd Street

Illiopolis, IL 62539

105 Prairie Run

Illiopolis, IL 62539

106 6th Street

Illiopolis, IL 62539

106 Prairie Run

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 9th Street

Illiopolis, IL 62539

107 North Beaman Drive

Illiopolis, IL 62539

108 8th Street

Illiopolis, IL 62539

109 4th Street

Illiopolis, IL 62539

109 Louisa Street

Illiopolis, IL 62539

109 Louisa Street

Illiopolis, IL 62539

11 Circle Drive

Illiopolis, IL 62539

110 North Beaman Drive

Illiopolis, IL 62539

110 Prairie Run

Illiopolis, IL 62539

111 North Beaman Drive

Illiopolis, IL 62539

112 3rd Street

Illiopolis, IL 62539

113 7th Street

Illiopolis, IL 62539

113 7th Street

Illiopolis, IL 62539

113 Cherry Street

Illiopolis, IL 62539

113 Prairie Run

Illiopolis, IL 62539

114 Matilda Street

Illiopolis, IL 62539

114 Prairie Run

Illiopolis, IL 62539

114 South Foster Street

Illiopolis, IL 62539

114 South Moore Street

Illiopolis, IL 62539

114 West Matilda Street

Illiopolis, IL 62539

115 Mary Street

Illiopolis, IL 62539

115 Mary Street

Illiopolis, IL 62539

115 Mary Street

Illiopolis, IL 62539

115 North Foster Street

Illiopolis, IL 62539

115 South Foster Street

Illiopolis, IL 62539

115 South Moore Street

Illiopolis, IL 62539

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