Williamsfield
Property Data

Knox County, Illinois

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

Knox County

ZIP Codesby Total Population

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Total Population
820820

DistributionTotal Population

No data available

Demographics

Total Population

820

Median Age

45.6

Population Under 18

20.7%

Population 65+

22.3%

Total Households

340

Average Household Size

2.37

Williamsfield, 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 Williamsfield, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
61489820$98,125$64295.3%

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 Williamsfield, 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 records0Recorded——
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: December 2021; not verified completeness.

Recorded property statistics

Reported property statistics for Williamsfield, IL
MeasureWilliamsfield, ILKnox County, IL
Median recorded sale amount—$138,250
Recorded amount, 10th percentile—$53,000
Recorded amount, 90th percentile—$723,500
Average recorded floor area (sq ft)1,4011,237
Average recorded bedrooms2.32.7
Average recorded bathrooms1.71.6
Median year built19611948
Condominium share of properties0%0.1%

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

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

Knox 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: December 2021; not a verified completeness date.

Properties in Williamsfield

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1

Williamsfield, IL 61489

100 East Gale Street

Williamsfield, IL 61489

100 South Mulberry Street

Williamsfield, IL 61489

101 Cottonwood Court

Williamsfield, IL 61489

101 North Pine Street

Williamsfield, IL 61489

1019 Knox Road

Williamsfield, IL 61489

102 Cottonwood Court

Williamsfield, IL 61489

102 North Chicago Avenue

Williamsfield, IL 61489

102 South Olive Street

Williamsfield, IL 61489

102 West Gale Street

Williamsfield, IL 61489

103 Cottonwood Court

Williamsfield, IL 61489

103 West Gale Street

Williamsfield, IL 61489

1032 Knox Road

Williamsfield, IL 61489

1035 Knox Road

Williamsfield, IL 61489

1036 Knox Highway 18

Williamsfield, IL 61489

104 Cottonwood Court

Williamsfield, IL 61489

104 East Gale Street

Williamsfield, IL 61489

105 Cottonwood Court

Williamsfield, IL 61489

105 North Elm Street

Williamsfield, IL 61489

105 South Elm Street

Williamsfield, IL 61489

105 West Gale Street

Williamsfield, IL 61489

1051 Knox Road

Williamsfield, IL 61489

1051 Knox Road

Williamsfield, IL 61489

1056 Knox Road

Williamsfield, IL 61489

106 Cottonwood Court

Williamsfield, IL 61489

106 Cottownwood Court

Williamsfield, IL 61489

106 North Elm Street

Williamsfield, IL 61489

106 South State Route 180

Williamsfield, IL 61489

106 West Kentucky Avenue

Williamsfield, IL 61489

1060 Knox Road

Williamsfield, IL 61489

1066 Knox Highway 18

Williamsfield, IL 61489

107 Cottonwood Court

Williamsfield, IL 61489

107 East Gale Street

Williamsfield, IL 61489

107 West Kentucky Avenue

Williamsfield, IL 61489

1076 West Knox Street

Williamsfield, IL 61489

1078 Knox Road

Williamsfield, IL 61489

1078 Knox Road

Williamsfield, IL 61489

108 Cottonwood Court

Williamsfield, IL 61489

108 North Oak Street

Williamsfield, IL 61489

108 North Olive Street

Williamsfield, IL 61489

108 South Elm Street

Williamsfield, IL 61489

108 South Mulberry Street

Williamsfield, IL 61489

109 Illinois Route 180

Williamsfield, IL 61489

109 North Olive Street

Williamsfield, IL 61489

109 South Chicago Avenue

Williamsfield, IL 61489

1096 Knox Road

Williamsfield, IL 61489

1097 Knox Road

Williamsfield, IL 61489

110 Cottonwood Court

Williamsfield, IL 61489

110 North Elm Street

Williamsfield, IL 61489

110 South Oak Street

Williamsfield, IL 61489

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