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Single Family ResidenceResidential
$151,752$144 / 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 85How 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
Last sold for $162,500 on Jan 29, 2024

421 HILLSIDE DR

COLLINSVILLE, IL 62234
2
Baths
1,052 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.
0.47 ac
Lot SizeThe size of the land the home sits on, from county records.
1962
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$152K
$129K low$174K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$162,500 · Jan 29, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,037 (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.$45,004 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,575
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$38,429
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$40,872
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$135,012

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
17
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
84
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
74
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
8
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 Residence
CountyST. CLAIR
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.1980
Lot (acres)The size of the land the home sits on, from county records.0.47
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (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.Porch · 200 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.

H
Collinsville High SchoolD
High · Grades 9–12 · 0.5 mi
M
Collinsville Middle SchoolC
Middle · Grades 7–8 · 0.7 mi
E
Twin Echo Elementary SchoolB-
Elementary · Grades KG–4 · 1.2 mi

District: Collinsville Community Unit School District 10

Neighborhood · ZIP 62234These 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.99
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.156

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.33,419
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.884 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,665
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,576
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

421 Hillside Dr 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 68% of homes in Collinsville 62234
  • Costs less per square foot than 66% of homes in Collinsville 62234
  • Has a bigger lot than 79% of homes in St. Clair County

What homes are worth in Collinsville 62234

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

This home
$47K$485K

This home is worth more than 32% of homes in Collinsville 62234.

How it measures up in Collinsville 62234

The dot is this home. The mark in the middle is the typical home in Collinsville 62234.

Estimated value$151,752
CheaperTypical $193,360Pricier

Pricier than 32% of homes nearby

Price per ft²$144
CheaperTypical $164Pricier

Pricier than 34% of homes nearby

Living area1,052 ft²
SmallerTypical 1,120 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.47 ac
SmallerTypical 0.29 acBigger

Bigger than 73% of homes nearby

Year built1962
OlderTypical 1965Newer

Newer than 46% of homes nearby

How 421 Hillside Dr ranks against every home in each area.
MeasureThis homeCollinsville 62234St. Clair County
Estimated valuepricier than$151,75232% of homes42% of homes
Price per ft²pricier than$14434% of homes49% of homes
Living areabigger than1,052 ft²42% of homes37% of homes
Lot sizebigger than0.47 ac73% of homes79% of homes
Year builtnewer than196246% of homes48% of homes

About 421 Hillside Dr

How much is 421 Hillside Dr, Collinsville, IL worth?

The TopHap Estimate for 421 Hillside Dr, Collinsville, IL is $151,752 as of Sep 24, 2026. The likely range is $129,123 to $174,381. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Hillside Dr, Collinsville, IL last sell?

421 Hillside Dr, Collinsville, IL last sold on Jan 29, 2024 for $162,500, according to the county's recorded deed.

How big is 421 Hillside Dr, Collinsville, IL?

421 Hillside Dr, Collinsville, IL has 2 bathrooms, 1,052 square feet of living space and a 0.47-acre lot.

When was 421 Hillside Dr, Collinsville, IL built?

421 Hillside Dr, Collinsville, IL was built in 1962, making it 64 years old. The building has 1 story.

What schools serve 421 Hillside Dr, Collinsville, IL?

421 Hillside Dr, Collinsville, IL is assigned to Collinsville High School (high), rated D; Collinsville Middle School (middle), rated C; Twin Echo Elementary School (elementary), rated B-. All sit in Collinsville Community Unit School District 10. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Hillside Dr, Collinsville, IL compare to other homes in Collinsville 62234?

Among the 11,850 homes in Collinsville 62234, it is worth more than 32% of them ($151,752 against a typical $193,360), its price per square foot is higher than 34% of them ($144 against a typical $164), it is bigger than 42% of them (1,052 ft² against a typical 1,120 ft²), its lot is bigger than 73% of them (0.47 ac against a typical 0.29 ac) and it is newer than 46% of them (1962 against a typical 1965). Measured against all of St. Clair County, it is worth more than 42% 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 421 Hillside Dr, Collinsville, IL?

The 2025 property tax bill for 421 Hillside Dr, Collinsville, IL was $3,037. The county assessed it at $45,004.

More homes on Hillside Dr

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Assigned schools

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