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Single Family ResidenceResidential
$186,583$199 / 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 84How 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 $177,500 on Oct 29, 2025

121 DOUGLAS ST

O FALLON, IL 62269
0
Baths
936 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1945
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$187K
$157K low$216K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$177,500 · Oct 29, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,691 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$36,915 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,994
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$27,921
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$36,915
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$110,745

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
24
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.
68
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.0.34
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.Central

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
Schaefer Elementary SchoolB
Elementary · Grades EE–5 · 0.5 mi
H
O'Fallon Township High SchoolB-
High · Grades 9–12 · 1.1 mi
M
Fulton Junior High SchoolA-
Middle · Grades 6–8 · 1.9 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

121 Douglas 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 87% of homes in O Fallon 62269
  • Costs more per square foot than 73% of homes in St. Clair County
  • Smaller than 84% of homes in O Fallon 62269
  • Has a bigger lot than 68% of homes in St. Clair County
  • Older than 93% of homes in O Fallon 62269

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
$119K$721K

This home is worth more than 13% 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$186,583
CheaperTypical $340,161Pricier

Pricier than 13% of homes nearby

Price per ft²$199
CheaperTypical $232Pricier

Pricier than 36% of homes nearby

Living area936 ft²
SmallerTypical 1,269 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.34 ac
SmallerTypical 0.28 acBigger

Bigger than 67% of homes nearby

Year built1945
OlderTypical 1993Newer

Newer than 7% of homes nearby

How 121 Douglas St ranks against every home in each area.
MeasureThis homeO Fallon 62269St. Clair County
Estimated valuepricier than$186,58313% of homes53% of homes
Price per ft²pricier than$19936% of homes73% of homes
Living areabigger than936 ft²16% of homes25% of homes
Lot sizebigger than0.34 ac67% of homes68% of homes
Year builtnewer than19457% of homes22% of homes

About 121 Douglas St

How much is 121 Douglas St, O Fallon, IL worth?

The TopHap Estimate for 121 Douglas St, O Fallon, IL is $186,583 as of Aug 30, 2026. The likely range is $156,770 to $216,396. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 121 Douglas St, O Fallon, IL last sell?

121 Douglas St, O Fallon, IL last sold on Oct 29, 2025 for $177,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 121 Douglas St, O Fallon, IL?

121 Douglas St, O Fallon, IL has 936 square feet of living space and a 0.34-acre lot.

When was 121 Douglas St, O Fallon, IL built?

121 Douglas St, O Fallon, IL was built in 1945, making it 81 years old. The building has 1 story.

What schools serve 121 Douglas St, O Fallon, IL?

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

How does 121 Douglas St, O Fallon, IL compare to other homes in O Fallon 62269?

Among the 12,187 homes in O Fallon 62269, it is worth more than 13% of them ($186,583 against a typical $340,161), its price per square foot is higher than 36% of them ($199 against a typical $232), it is bigger than 16% of them (936 ft² against a typical 1,269 ft²), its lot is bigger than 67% of them (0.34 ac against a typical 0.28 ac) and it is newer than 7% of them (1945 against a typical 1993). Measured against all of St. Clair County, it is worth more than 53% 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 121 Douglas St, O Fallon, IL?

The 2024 property tax bill for 121 Douglas St, O Fallon, IL was $2,691. The county assessed it at $36,915.

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