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Single Family ResidenceResidential
$346,343$174 / 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 95How 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 $161,700 on Mar 1, 1998

811 ALEXANDER DR

O FALLON, IL 62269
4
Baths
1,988 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.
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$346K
$328K low$365K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$161,700 · Mar 1, 1998

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,864 (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.$92,352 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$24,162
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$68,190
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$84,248
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$277,056

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.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
14
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
82
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
69
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
24
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
Lot (acres)The size of the land the home sits on, from county records.0.33
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
CoolingThe type of cooling or air conditioning in the home.Central
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 · 456 ft²

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

E
Kampmeyer Elementary SchoolA-
Elementary · Grades EE–5 · 0.3 mi
M
Carriel Junior High SchoolA-
Middle · Grades 6–8 · 0.5 mi
H
O'Fallon Township High SchoolB-
High · Grades 9–12 · 0.8 mi

District: O'Fallon Community Consolidated School District 90

Neighborhood · ZIP 62269These 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.66
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.163

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
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.33,610
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,140 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,165
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,936
Average tempThe average temperature here across a full year.56°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

811 Alexander 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 more than 81% of homes in St. Clair County
  • Costs less per square foot than 80% of homes in O Fallon 62269
  • Bigger than 91% of homes in St. Clair County
  • Has a bigger lot than 68% of homes in St. Clair County
  • Newer than 80% of homes in St. Clair County

What homes are worth in O Fallon 62269

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

This home
$122K$733K

This home is worth more than 50% of homes in O Fallon 62269.

How it measures up in O Fallon 62269

The dot is this home. The mark in the middle is the typical home in O Fallon 62269.

Estimated value$346,343
CheaperTypical $343,818Pricier

Pricier than 50% of homes nearby

Price per ft²$174
CheaperTypical $240Pricier

Pricier than 20% of homes nearby

Living area1,988 ft²
SmallerTypical 1,280 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.33 ac
SmallerTypical 0.28 acBigger

Bigger than 65% of homes nearby

Year built1998
OlderTypical 1993Newer

Newer than 62% of homes nearby

How 811 Alexander Dr ranks against every home in each area.
MeasureThis homeO Fallon 62269St. Clair County
Estimated valuepricier than$346,34350% of homes81% of homes
Price per ft²pricier than$17420% of homes62% of homes
Living areabigger than1,988 ft²84% of homes91% of homes
Lot sizebigger than0.33 ac65% of homes68% of homes
Year builtnewer than199862% of homes80% of homes

About 811 Alexander Dr

How much is 811 Alexander Dr, O Fallon, IL worth?

The TopHap Estimate for 811 Alexander Dr, O Fallon, IL is $346,343 as of Sep 24, 2026. The likely range is $327,653 to $365,033. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 811 Alexander Dr, O Fallon, IL last sell?

811 Alexander Dr, O Fallon, IL last sold on Mar 1, 1998 for $161,700, according to the county's recorded deed.

How big is 811 Alexander Dr, O Fallon, IL?

811 Alexander Dr, O Fallon, IL has 4 bathrooms, 1,988 square feet of living space and a 0.33-acre lot.

When was 811 Alexander Dr, O Fallon, IL built?

811 Alexander Dr, O Fallon, IL was built in 1998, making it 28 years old. The building has 1 story.

What schools serve 811 Alexander Dr, O Fallon, IL?

811 Alexander Dr, O Fallon, IL is assigned to Kampmeyer Elementary School (elementary), rated A-; Carriel Junior High School (middle), rated A-; O'Fallon Township High School (high), rated B-. All sit in O'Fallon Community Consolidated School District 90. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 811 Alexander Dr, O Fallon, IL compare to other homes in O Fallon 62269?

Among the 12,271 homes in O Fallon 62269, it is worth more than 50% of them ($346,343 against a typical $343,818), its price per square foot is higher than 20% of them ($174 against a typical $240), it is bigger than 84% of them (1,988 ft² against a typical 1,280 ft²), its lot is bigger than 65% of them (0.33 ac against a typical 0.28 ac) and it is newer than 62% of them (1998 against a typical 1993). Measured against all of St. Clair County, it is worth more than 81% 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 811 Alexander Dr, O Fallon, IL?

The 2025 property tax bill for 811 Alexander Dr, O Fallon, IL was $5,864. The county assessed it at $92,352.

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