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Single Family ResidentialResidential
$188,625$154 / 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 $135,000 on May 5, 2023

100 W SOUTH ST

HENDERSON, IL 61439
1
Beds
0
Baths
1,224 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.
0.41 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$189K
$178K low$199K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$135,000 · May 5, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,866 (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.$55,360 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,920
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$50,440
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$52,530
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$166,080

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.31
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
8
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
78
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
66
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
3
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
StyleThe architectural style of the home, such as ranch or colonial.Split Level
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.0.41
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Silas Willard Elementary SchoolC
Elementary · Grades KG–4 · 4.0 mi
H
Galesburg High SchoolF
High · Grades 9–12 · 4.3 mi
M
Churchill Junior High SchoolC
Middle · Grades 7–8 · 4.5 mi

District: Galesburg Community Unit School District 205

Neighborhood · ZIP 61439These 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.71
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 100.34

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.9.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.4
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.15 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,451
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$91,544
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

100 W 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 more than 92% of homes in Henderson 61439
  • Costs more per square foot than 91% of homes in Henderson 61439
  • Bigger than 65% of homes in Knox County
  • Has a smaller lot than 68% of homes in Henderson 61439
  • Newer than 73% of homes in Knox County

What homes are worth in Henderson 61439

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

This home
$27K$298K

This home is worth more than 92% of homes in Henderson 61439.

How it measures up in Henderson 61439

The dot is this home. The mark in the middle is the typical home in Henderson 61439.

Estimated value$188,625
CheaperTypical $107,072Pricier

Pricier than 92% of homes nearby

Price per ft²$154
CheaperTypical $97Pricier

Pricier than 91% of homes nearby

Living area1,224 ft²
SmallerTypical 1,080 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.41 ac
SmallerTypical 0.48 acBigger

Bigger than 32% of homes nearby

Year built1969
OlderTypical 1963Newer

Newer than 70% of homes nearby

How 100 W South St ranks against every home in each area.
MeasureThis homeHenderson 61439Knox County
Estimated valuepricier than$188,62592% of homes79% of homes
Price per ft²pricier than$15491% of homes81% of homes
Living areabigger than1,224 ft²63% of homes65% of homes
Lot sizebigger than0.41 ac32% of homes66% of homes
Year builtnewer than196970% of homes73% of homes

About 100 W South St

How much is 100 W South St, Henderson, IL worth?

The TopHap Estimate for 100 W South St, Henderson, IL is $188,625 as of Aug 30, 2026. The likely range is $177,804 to $199,446. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 W South St, Henderson, IL last sell?

100 W South St, Henderson, IL last sold on May 5, 2023 for $135,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 100 W South St, Henderson, IL?

100 W South St, Henderson, IL has 1 bedrooms, 1,224 square feet of living space and a 0.41-acre lot.

When was 100 W South St, Henderson, IL built?

100 W South St, Henderson, IL was built in 1969, making it 57 years old. It is a split level home. The building has 1 story.

What schools serve 100 W South St, Henderson, IL?

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

How does 100 W South St, Henderson, IL compare to other homes in Henderson 61439?

Among the 132 homes in Henderson 61439, it is worth more than 92% of them ($188,625 against a typical $107,072), its price per square foot is higher than 91% of them ($154 against a typical $97), it is bigger than 63% of them (1,224 ft² against a typical 1,080 ft²), its lot is bigger than 32% of them (0.41 ac against a typical 0.48 ac) and it is newer than 70% of them (1969 against a typical 1963). Measured against all of Knox County, it is worth more than 79% 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 100 W South St, Henderson, IL?

The 2025 property tax bill for 100 W South St, Henderson, IL was $3,866. The county assessed it at $55,360.

More homes on W South St

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Assigned schools

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