Waterloo
Property Data

Monroe County, Illinois

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

Monroe County

ZIP Codesby Total Population

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Total Population
18,20818,208

DistributionTotal Population

No data available

Demographics

Total Population

18,208

Median Age

44.1

Population Under 18

20.6%

Population 65+

20.9%

Total Households

7,213

Average Household Size

2.49

Waterloo, 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 Waterloo, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
6229818,208$101,155$89085.3%

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 Waterloo, 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 records245Recorded——
Average recorded sale amount$321,138Recorded——

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: June 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Waterloo, IL
MeasureWaterloo, ILMonroe County, IL
Median recorded sale amount$285,000$280,000
Recorded amount, 10th percentile$163,000$151,300
Recorded amount, 90th percentile$501,900$495,000
Average recorded floor area (sq ft)1,5871,586
Average recorded bedrooms2.92.9
Average recorded bathrooms3.43.4
Median year built19911989
Condominium share of properties2.2%2.1%

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

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

Monroe 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: June 2026; not a verified completeness date.

Properties in Waterloo

Showing page 2 of properties

100 Pautler Place

Waterloo, IL 62298

100 Plaza Drive

Waterloo, IL 62298

100 Polo Run

Waterloo, IL 62298

100 South Main Street

Waterloo, IL 62298

100 South Market Street

Waterloo, IL 62298

100 West 4th Street

Waterloo, IL 62298

1000 Cottonwood Lane

Waterloo, IL 62298

1000 Lakeview Drive

Waterloo, IL 62298

1000 North Illinois Route 3

Waterloo, IL 62298

1000 North Moore Street

Waterloo, IL 62298

1000 Oak Creek Lane

Waterloo, IL 62298

1000 Park Street

Waterloo, IL 62298

1000 Turtle Dove Trail

Waterloo, IL 62298

1000 Waymaker Lane

Waterloo, IL 62298-2302

1001 Cottonwood Lane

Waterloo, IL 62298

1001 Evansville Avenue

Waterloo, IL 62298

1001 Sherwood Lane

Waterloo, IL 62298

1001 Waymaker Lane

Waterloo, IL 62298-2303

1002 Driftwood Lane

Waterloo, IL 62298

1002 Roseberry Drive

Waterloo, IL 62298

1003 Creekside Drive

Waterloo, IL 62298

1003 Driftwood Lane

Waterloo, IL 62298

1003 Floraville Road

Waterloo, IL 62298

1003 Roseberry Drive

Waterloo, IL 62298

1004 Cottonwood Lane

Waterloo, IL 62298

1004 Evansville Avenue

Waterloo, IL 62298

1004 Oak Creek Lane

Waterloo, IL 62298

1004 Turtle Dove Trail

Waterloo, IL 62298

1004 West Fallen Lake Drive

Waterloo, IL 62298

1004 Waymaker Lane

Waterloo, IL 62298-2302

1005 Cottonwood Lane

Waterloo, IL 62298

1005 Oak Creek Lane

Waterloo, IL 62298

1005 Waymaker Lane

Waterloo, IL 62298-2303

1006 Creekside Drive

Waterloo, IL 62298

1006 Driftwood Lane

Waterloo, IL 62298

1007 Creekside Drive

Waterloo, IL 62298

1007 Driftwood Lane

Waterloo, IL 62298

1008 Cottonwood Lane

Waterloo, IL 62298

1008 Oak Creek Lane

Waterloo, IL 62298

1008 Stockel Lane

Waterloo, IL 62298

1008 Turtle Dove Trail

Waterloo, IL 62298

1008 West Fallen Lake Drive

Waterloo, IL 62298

1008 Waymaker Lane

Waterloo, IL 62298-2302

1009 Cottonwood Lane

Waterloo, IL 62298

1009 Roseberry Drive

Waterloo, IL 62298

1009 Turtle Dove Trail

Waterloo, IL 62298

1009 Waymaker Lane

Waterloo, IL 62298-2303

101 Adams Drive

Waterloo, IL 62298

101 Bell Street

Waterloo, IL 62298

101 Christmann Lane

Waterloo, IL 62298

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