Mason City
Property Data

Mason County, Illinois

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

Mason County

ZIP Codesby Total Population

Loading map...
Total Population
2,9222,922

DistributionTotal Population

No data available

Demographics

Total Population

2,922

Median Age

44.6

Population Under 18

21.0%

Population 65+

23.1%

Total Households

1,316

Average Household Size

2.17

Mason City, 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 Mason City, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
626642,922$70,509$80081.1%

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 Mason City, 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 .

Recorded property statistics

Reported property statistics for Mason City, IL
MeasureMason City, ILMason County, IL
Average recorded floor area (sq ft)1,7091,572
Average recorded bedrooms2.92.8
Average recorded bathrooms1.71.6
Median year built19551964
Condominium share of properties0%0%

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

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

Mason 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.

Properties in Mason City

Showing page 4 of properties

1200 East Chestnut Street

Mason City, IL 62664

1200 East Chestnut Street

Mason City, IL 62664

12032 North Cr 3300e

Mason City, IL 62664

1206 East Chestnut Street

Mason City, IL 62664

1209 East Chestnut Street

Mason City, IL 62664

121 East High Street

Mason City, IL 62664

121 East Jefferson Street

Mason City, IL 62664

121 North Yates Street

Mason City, IL 62664

121 South Green Street

Mason City, IL 62664

121 South Indiana Street

Mason City, IL 62664

121 South Main Street

Mason City, IL 62664

121 South Menard Street

Mason City, IL 62664

121 West Court Street

Mason City, IL 62664

121 West Walnut Street

Mason City, IL 62664

1213 East Chestnut Street

Mason City, IL 62664

1213 East Pine Street

Mason City, IL 62664

1213 East Pine Street

Mason City, IL 62664

1217 North Main Street

Mason City, IL 62664

12188 County Road 3600

Mason City, IL 62664

122 East Elm Street

Mason City, IL 62664

122 East Pine Street

Mason City, IL 62664

122 North Menard Street

Mason City, IL 62664

122 North Tonica Street

Mason City, IL 62664

122 South Morgan Street

Mason City, IL 62664

122 West Arch Street

Mason City, IL 62664

122 West Myrtle Street

Mason City, IL 62664

122 West Pine Street

Mason City, IL 62664

12229 County Road 3700

Mason City, IL 62664

12229 North Cr 3700e

Mason City, IL 62664-7174

1225 North Main Street

Mason City, IL 62664

12281 North Cr 2950e

Mason City, IL 62664

12281 North Cr 2950e

Mason City, IL 62664-7318

123 East Chestnut Street

Mason City, IL 62664

123 North Logan Street

Mason City, IL 62664

123 North Menard Street

Mason City, IL 62664

123 North Morgan Street

Mason City, IL 62664

123 West Elm Street

Mason City, IL 62664

123 West Jefferson Street

Mason City, IL 62664

12372 County Road 3700

Mason City, IL 62664

12372 North Cr 3700e

Mason City, IL 62664-7175

124 East Chestnut Street

Mason City, IL 62664

124 East Roosevelt Road

Mason City, IL 62664

124 North Irving Street

Mason City, IL 62664

124 North Logan Street

Mason City, IL 62664

124 North Morgan Street

Mason City, IL 62664

124 South Indiana Street

Mason City, IL 62664

124 South Logan Street

Mason City, IL 62664

124 South Menard Street

Mason City, IL 62664

124 South Tonica Street

Mason City, IL 62664

12407 North Cr 3400e

Mason City, IL 62664

Access Mason County, IL Property Data Through Our Enterprise API

Get instant access to comprehensive county assessors-based property data with your free API key

Need Bulk Data?

Email us at hello@realie.ai