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Single Family ResidenceResidential
$472,746$244 / 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 87How 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

437 IL ROUTE 173

CALEDONIA, IL 61011
4
Beds
2.5
Baths
1,938 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.
5.31 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
Year BuiltThe year the home was originally built, according to county records.
2
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.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$473K
$409K low$536K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,718 (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.$115,352 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$27,758
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$87,594
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$106,757
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$346,056

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBOONE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2008
Lot (acres)The size of the land the home sits on, from county records.5.31
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.None
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed
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.Deck

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

E
Caledonia Elementary SchoolC+
Elementary · Grades EE–5 · 1.8 mi
H
Belvidere North High SchoolC-
High · Grades 9–12 · 6.5 mi
M
Belvidere Central Middle SchoolC-
Middle · Grades 6–8 · 7.0 mi

District: Belvidere Consolidated Unit School District 100

Neighborhood · ZIP 61011These 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.53
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.41

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
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.5,733
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.149 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$127,206
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,773
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

437 Il Route 173 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 85% of homes in Boone County
  • Costs more per square foot than 95% of homes in Boone County
  • Has a bigger lot than 93% of homes in Boone County
  • Older than 72% of homes in Caledonia 61011

What homes are worth in Caledonia 61011

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

This home
$195K$1M

This home is worth more than 63% of homes in Caledonia 61011.

How it measures up in Caledonia 61011

The dot is this home. The mark in the middle is the typical home in Caledonia 61011.

Estimated value$472,746
CheaperTypical $392,597Pricier

Pricier than 63% of homes nearby

Price per ft²$244
CheaperTypical $181Pricier

Pricier than 85% of homes nearby

Living area1,938 ft²
SmallerTypical 2,188 ft²Bigger

Bigger than 38% of homes nearby

Lot size5.31 ac
SmallerTypical 1.21 acBigger

Bigger than 83% of homes nearby

Year built1973
OlderTypical 1990Newer

Newer than 28% of homes nearby

How 437 Il Route 173 ranks against every home in each area.
MeasureThis homeCaledonia 61011Boone County
Estimated valuepricier than$472,74663% of homes85% of homes
Price per ft²pricier than$24485% of homes95% of homes
Living areabigger than1,938 ft²38% of homes56% of homes
Lot sizebigger than5.31 ac83% of homes93% of homes
Year builtnewer than197328% of homes37% of homes

About 437 Il Route 173

How much is 437 Il Route 173, Caledonia, IL worth?

The TopHap Estimate for 437 Il Route 173, Caledonia, IL is $472,746 as of Sep 24, 2026. The likely range is $409,481 to $536,011. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 437 Il Route 173, Caledonia, IL last sell?

437 Il Route 173, Caledonia, IL last sold on Sep 22, 1971, according to the county's recorded deed.

How big is 437 Il Route 173, Caledonia, IL?

437 Il Route 173, Caledonia, IL has 4 bedrooms, 2.5 bathrooms, 1,938 square feet of living space and a 5.31-acre lot.

When was 437 Il Route 173, Caledonia, IL built?

437 Il Route 173, Caledonia, IL was built in 1973, making it 53 years old. The building has 2 stories.

What schools serve 437 Il Route 173, Caledonia, IL?

437 Il Route 173, Caledonia, IL is assigned to Caledonia Elementary School (elementary), rated C+; Belvidere North High School (high), rated C-; Belvidere Central Middle School (middle), rated C-. All sit in Belvidere Consolidated Unit School District 100. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 437 Il Route 173, Caledonia, IL compare to other homes in Caledonia 61011?

Among the 1,173 homes in Caledonia 61011, it is worth more than 63% of them ($472,746 against a typical $392,597), its price per square foot is higher than 85% of them ($244 against a typical $181), it is bigger than 38% of them (1,938 ft² against a typical 2,188 ft²), its lot is bigger than 83% of them (5.31 ac against a typical 1.21 ac) and it is newer than 28% of them (1973 against a typical 1990). Measured against all of Boone County, it is worth more than 85% 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 437 Il Route 173, Caledonia, IL?

The 2025 property tax bill for 437 Il Route 173, Caledonia, IL was $5,718. The county assessed it at $115,352.

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