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Single Family ResidentialResidential
$128,225$113 / ft²
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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $64,000 on Mar 12, 2021

512 WALNUT ST

ALTONA, IL 61414
0
Baths
1,134 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
1.8 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$128K
$121K low$136K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$64,000 · Mar 12, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,377 (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.$38,160 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$34,160
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$36,520
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$114,480

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.1.80
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Shed · 648 ft²

Transaction History(2)

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
R O W V a Jr and Sr High SchoolB-
Middle · Grades 7–12 · 4.0 mi
E
R O W V a Elementary SchoolA-
Elementary · Grades PK–6 · 4.0 mi

District: Rowva Community Unit School District 208

Neighborhood · ZIP 61414These 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.61
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.91%
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.6.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.804
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,031
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$77,056
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

512 Walnut 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.

  • Costs more per square foot than 71% of homes in Altona 61414
  • Has a bigger lot than 86% of homes in Knox County
  • Newer than 75% of homes in Altona 61414

What homes are worth in Altona 61414

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

This home
$24K$472K

This home is worth more than 64% of homes in Altona 61414.

How it measures up in Altona 61414

The dot is this home. The mark in the middle is the typical home in Altona 61414.

Estimated value$128,225
CheaperTypical $101,018Pricier

Pricier than 64% of homes nearby

Price per ft²$113
CheaperTypical $87Pricier

Pricier than 71% of homes nearby

Living area1,134 ft²
SmallerTypical 1,087 ft²Bigger

Bigger than 57% of homes nearby

Lot size1.8 ac
SmallerTypical 0.82 acBigger

Bigger than 66% of homes nearby

Year built1970
OlderTypical 1920Newer

Newer than 75% of homes nearby

How 512 Walnut St ranks against every home in each area.
MeasureThis homeAltona 61414Knox County
Estimated valuepricier than$128,22564% of homes60% of homes
Price per ft²pricier than$11371% of homes61% of homes
Living areabigger than1,134 ft²57% of homes56% of homes
Lot sizebigger than1.8 ac66% of homes86% of homes
Year builtnewer than197075% of homes75% of homes

About 512 Walnut St

How much is 512 Walnut St, Altona, IL worth?

The TopHap Estimate for 512 Walnut St, Altona, IL is $128,225 as of Aug 30, 2026. The likely range is $120,503 to $135,947. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 512 Walnut St, Altona, IL last sell?

512 Walnut St, Altona, IL last sold on Mar 12, 2021 for $64,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 512 Walnut St, Altona, IL?

512 Walnut St, Altona, IL has 1,134 square feet of living space and a 1.80-acre lot.

When was 512 Walnut St, Altona, IL built?

512 Walnut St, Altona, IL was built in 1970, making it 56 years old. The building has 1 story.

What schools serve 512 Walnut St, Altona, IL?

512 Walnut St, Altona, IL is assigned to R O W V a Jr and Sr High School (middle), rated B-; R O W V a Elementary School (elementary), rated A-. All sit in Rowva Community Unit School District 208. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 512 Walnut St, Altona, IL compare to other homes in Altona 61414?

Among the 389 homes in Altona 61414, it is worth more than 64% of them ($128,225 against a typical $101,018), its price per square foot is higher than 71% of them ($113 against a typical $87), it is bigger than 57% of them (1,134 ft² against a typical 1,087 ft²), its lot is bigger than 66% of them (1.8 ac against a typical 0.82 ac) and it is newer than 75% of them (1970 against a typical 1920). Measured against all of Knox County, it is worth more than 60% 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 512 Walnut St, Altona, IL?

The 2025 property tax bill for 512 Walnut St, Altona, IL was $3,377. The county assessed it at $38,160.

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