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Duplex (2 Units, Any Combination)Residential
Last sold for $175,000 on Apr 30, 2021

850 TOPAZ CT

MASCOUTAH, IL 62258
3
Baths
1,050 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2012
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$175,000 · Apr 30, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,059 (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.$83,278 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,254
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$71,024
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$77,411
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$249,834

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.46
42
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
18
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.9 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyST. CLAIR
Lot (acres)The size of the land the home sits on, from county records.0.14
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
CoolingThe type of cooling or air conditioning in the home.Central
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.Garage, Attached
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 · 55 ft²

Transaction History(4)

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.

M
Mascoutah Middle SchoolB-
Middle · Grades 6–8 · 0.8 mi
E
Mascoutah Elementary SchoolA
Elementary · Grades PK–5 · 1.1 mi
H
Mascoutah High SchoolA
High · Grades 9–12 · 1.6 mi

District: Mascoutah Community Unit School District 19

Neighborhood · ZIP 62258These 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.60
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.171

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
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.10,389
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.134 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,499
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,031
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

850 Topaz Ct 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.

  • Smaller than 70% of homes in Mascoutah 62258
  • Has a smaller lot than 91% of homes in St. Clair County
  • Newer than 97% of homes in St. Clair County

How it measures up in Mascoutah 62258

The dot is this home. The mark in the middle is the typical home in Mascoutah 62258.

Living area1,050 ft²
SmallerTypical 1,320 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.14 ac
SmallerTypical 0.25 acBigger

Bigger than 14% of homes nearby

Year built2012
OlderTypical 1983Newer

Newer than 93% of homes nearby

How 850 Topaz Ct ranks against every home in each area.
MeasureThis homeMascoutah 62258St. Clair County
Living areabigger than1,050 ft²30% of homes37% of homes
Lot sizebigger than0.14 ac14% of homes9% of homes
Year builtnewer than201293% of homes97% of homes

About 850 Topaz Ct

When did 850 Topaz Ct, Mascoutah, IL last sell?

850 Topaz Ct, Mascoutah, IL last sold on Apr 30, 2021 for $175,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 850 Topaz Ct, Mascoutah, IL?

850 Topaz Ct, Mascoutah, IL has 3 bathrooms, 1,050 square feet of living space and a 0.14-acre lot.

When was 850 Topaz Ct, Mascoutah, IL built?

850 Topaz Ct, Mascoutah, IL was built in 2012, making it 14 years old. It is a duplex single home. The building has 2 stories.

What schools serve 850 Topaz Ct, Mascoutah, IL?

850 Topaz Ct, Mascoutah, IL is assigned to Mascoutah Middle School (middle), rated B-; Mascoutah Elementary School (elementary), rated A; Mascoutah High School (high), rated A. All sit in Mascoutah Community Unit School District 19. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 850 Topaz Ct, Mascoutah, IL compare to other homes in Mascoutah 62258?

Among the 3,992 homes in Mascoutah 62258, it is bigger than 30% of them (1,050 ft² against a typical 1,320 ft²), its lot is bigger than 14% of them (0.14 ac against a typical 0.25 ac) and it is newer than 93% of them (2012 against a typical 1983). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 850 Topaz Ct, Mascoutah, IL?

The 2025 property tax bill for 850 Topaz Ct, Mascoutah, IL was $4,059. The county assessed it at $83,278.

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