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Single Family ResidentialResidential
$42,920$38 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

866 E SOUTH ST

GALESBURG, IL 61401
1
Baths
1,120 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$43K
$39K low$47K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$768 (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.$14,290 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,850
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$12,440
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$13,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$42,870

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.0.18
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

E
King SchoolC-
Elementary · Grades KG–4 · 0.8 mi
M
Churchill Junior High SchoolC
Middle · Grades 7–8 · 1.5 mi
H
Galesburg High SchoolF
High · Grades 9–12 · 2.1 mi

District: Galesburg Community Unit School District 205

Neighborhood · ZIP 61401These 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.113
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.28

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.32,439
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.268 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$50,899
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$65,126
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

866 E South 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.

  • Worth less than 88% of homes in Knox County
  • Costs less per square foot than 94% of homes in Knox County
  • Has a smaller lot than 84% of homes in Knox County
  • Older than 98% of homes in Galesburg 61401

What homes are worth in Galesburg 61401

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

This home
$21K$352K

This home is worth more than 14% of homes in Galesburg 61401.

How it measures up in Galesburg 61401

The dot is this home. The mark in the middle is the typical home in Galesburg 61401.

Estimated value$42,920
CheaperTypical $96,767Pricier

Pricier than 14% of homes nearby

Price per ft²$38
CheaperTypical $95Pricier

Pricier than 7% of homes nearby

Living area1,120 ft²
SmallerTypical 1,030 ft²Bigger

Bigger than 61% of homes nearby

Lot size0.18 ac
SmallerTypical 0.25 acBigger

Bigger than 22% of homes nearby

Year built1880
OlderTypical 1932Newer

Newer than 2% of homes nearby

How 866 E South St ranks against every home in each area.
MeasureThis homeGalesburg 61401Knox County
Estimated valuepricier than$42,92014% of homes12% of homes
Price per ft²pricier than$387% of homes6% of homes
Living areabigger than1,120 ft²61% of homes55% of homes
Lot sizebigger than0.18 ac22% of homes16% of homes
Year builtnewer than18802% of homes5% of homes

About 866 E South St

How much is 866 E South St, Galesburg, IL worth?

The TopHap Estimate for 866 E South St, Galesburg, IL is $42,920 as of Sep 24, 2026. The likely range is $38,515 to $47,325. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 866 E South St, Galesburg, IL last sell?

866 E South St, Galesburg, IL last sold on Apr 1, 2004, according to the county's recorded deed.

How big is 866 E South St, Galesburg, IL?

866 E South St, Galesburg, IL has 1 bathrooms, 1,120 square feet of living space and a 0.18-acre lot.

When was 866 E South St, Galesburg, IL built?

866 E South St, Galesburg, IL was built in 1880, making it 146 years old. The building has 2 stories.

What schools serve 866 E South St, Galesburg, IL?

866 E South St, Galesburg, IL is assigned to King School (elementary), rated C-; Churchill Junior High School (middle), rated C; Galesburg High School (high), rated F. All sit in Galesburg Community Unit School District 205. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 866 E South St, Galesburg, IL compare to other homes in Galesburg 61401?

Among the 11,548 homes in Galesburg 61401, it is worth more than 14% of them ($42,920 against a typical $96,767), its price per square foot is higher than 7% of them ($38 against a typical $95), it is bigger than 61% of them (1,120 ft² against a typical 1,030 ft²), its lot is bigger than 22% of them (0.18 ac against a typical 0.25 ac) and it is newer than 2% of them (1880 against a typical 1932). Measured against all of Knox County, it is worth more than 12% 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 866 E South St, Galesburg, IL?

The 2025 property tax bill for 866 E South St, Galesburg, IL was $768. The county assessed it at $14,290.

More homes on E South St

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