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Single Family ResidentialResidential
$107,904
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 78How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $82,000 on Mar 23, 2020

320 S KEEFER ST

MASON CITY, IL 62664
0
Baths
0.56 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$108K
$85K low$131K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$82,000 · Mar 23, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,492 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$34,165 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,805
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$29,360
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$31,197
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$102,495

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
CountyMASON
Lot (acres)The size of the land the home sits on, from county records.0.56
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Illini Central Middle SchoolC
Middle · Grades 6–8 · 0.4 mi
E
Illini Central Grade SchoolC-
Elementary · Grades KG–5 · 0.4 mi
H
Illini Central High SchoolD+
High · Grades 9–12 · 0.4 mi

District: Illini Central Community Unit School District 189

Neighborhood · ZIP 62664These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.103
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.44

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.2,688
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.24 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,372
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,162
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

320 S Keefer St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Has a bigger lot than 68% of homes in Mason City 62664

What homes are worth in Mason City 62664

Each bar is how many homes fall in that price range. The marker is this home.

This home
$20K$599K

This home is worth more than 53% of homes in Mason City 62664.

How it measures up in Mason City 62664

The dot is this home. The mark in the middle is the typical home in Mason City 62664.

Estimated value$107,904
CheaperTypical $103,366Pricier

Pricier than 53% of homes nearby

Lot size0.56 ac
SmallerTypical 0.33 acBigger

Bigger than 68% of homes nearby

How 320 S Keefer St ranks against every home in each area.
MeasureThis homeMason City 62664Mason County
Estimated valuepricier than$107,90453% of homes63% of homes
Lot sizebigger than0.56 ac68% of homes63% of homes

About 320 S Keefer St

How much is 320 S Keefer St, Mason City, IL worth?

The TopHap Estimate for 320 S Keefer St, Mason City, IL is $107,904 as of Oct 21, 2026. The likely range is $84,636 to $131,172. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 320 S Keefer St, Mason City, IL last sell?

320 S Keefer St, Mason City, IL last sold on Mar 23, 2020 for $82,000, according to the county's recorded deed.

What schools serve 320 S Keefer St, Mason City, IL?

320 S Keefer St, Mason City, IL is assigned to Illini Central Middle School (middle), rated C; Illini Central Grade School (elementary), rated C-; Illini Central High School (high), rated D+. All sit in Illini Central Community Unit School District 189. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 320 S Keefer St, Mason City, IL compare to other homes in Mason City 62664?

Among the 1,354 homes in Mason City 62664, it is worth more than 53% of them ($107,904 against a typical $103,366) and its lot is bigger than 68% of them (0.56 ac against a typical 0.33 ac). Measured against all of Mason County, it is worth more than 63% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 320 S Keefer St, Mason City, IL?

The 2025 property tax bill for 320 S Keefer St, Mason City, IL was $2,492. The county assessed it at $34,165.

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