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Single Family ResidenceResidential
$59,363$55 / 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 88How 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

637 GREEN RIVER ST

COLONA, IL 61241
2
Beds
1
Baths
1,083 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
1874
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$59K
$52K low$66K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$179 (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.$14,816 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,242
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$10,574
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$14,017
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$44,448

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.41
25
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
28
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
74
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
62
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
17
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.2 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.0.2 percent flood zone

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 Residence
CountyHENRY
Lot (acres)The size of the land the home sits on, from county records.0.29
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Gas
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Colona Grade SchoolC-
Elementary · Grades PK–8 · 0.6 mi
H
United Township High SchoolC
High · Grades 9–12 · 4.5 mi

District: United Township High School District 30

Neighborhood · ZIP 61241These 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.75
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.35

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.9%
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.5,638
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.273 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,742
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,954
Average tempThe average temperature here across a full year.50°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.55%

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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

637 Green River 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 98% of homes in Colona 61241
  • Among the lowest price per square foot in Colona 61241
  • Among the oldest homes in Colona 61241

What homes are worth in Colona 61241

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

This home
$63K$467K

This home is worth more than 2% of homes in Colona 61241.

How it measures up in Colona 61241

The dot is this home. The mark in the middle is the typical home in Colona 61241.

Estimated value$59,363
CheaperTypical $174,008Pricier

Pricier than 2% of homes nearby

Price per ft²$55
CheaperTypical $152Pricier

Cheaper than almost all homes nearby

Living area1,083 ft²
SmallerTypical 1,144 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.29 ac
SmallerTypical 0.28 acBigger

Bigger than 50% of homes nearby

Year built1874
OlderTypical 1969Newer

Older than almost all homes nearby

How 637 Green River St ranks against every home in each area.
MeasureThis homeColona 61241Henry County
Estimated valuepricier than$59,3632% of homes13% of homes
Price per ft²pricier than$55almost no homes12% of homes
Living areabigger than1,083 ft²41% of homes36% of homes
Lot sizebigger than0.29 ac50% of homes41% of homes
Year builtnewer than1874almost no homesalmost no homes

About 637 Green River St

How much is 637 Green River St, Colona, IL worth?

The TopHap Estimate for 637 Green River St, Colona, IL is $59,363 as of Aug 30, 2026. The likely range is $52,246 to $66,480. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 637 Green River St, Colona, IL last sell?

637 Green River St, Colona, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 637 Green River St, Colona, IL?

637 Green River St, Colona, IL has 2 bedrooms, 1 bathrooms, 1,083 square feet of living space and a 0.29-acre lot.

When was 637 Green River St, Colona, IL built?

637 Green River St, Colona, IL was built in 1874, making it 152 years old. The building has 1 story.

What schools serve 637 Green River St, Colona, IL?

637 Green River St, Colona, IL is assigned to Colona Grade School (elementary), rated C-; United Township High School (high), rated C. All sit in United Township High School District 30. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 637 Green River St, Colona, IL compare to other homes in Colona 61241?

Among the 2,739 homes in Colona 61241, it is worth more than 2% of them ($59,363 against a typical $174,008), its price per square foot is higher than almost none of them ($55 against a typical $152), it is bigger than 41% of them (1,083 ft² against a typical 1,144 ft²), its lot is bigger than 50% of them (0.29 ac against a typical 0.28 ac) and it is newer than almost none of them (1874 against a typical 1969). Measured against all of Henry County, it is worth more than 13% 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 637 Green River St, Colona, IL?

The 2025 property tax bill for 637 Green River St, Colona, IL was $179. The county assessed it at $14,816.

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