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Single Family ResidenceResidential
$425,529$430 / 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 92How 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 $161,000 on Sep 9, 2016

545 STREAMSTONE LN

MASCOUTAH, IL 62258
4
Baths
990 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.
0.31 ac
Lot SizeThe size of the land the home sits on, from county records.
2005
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$426K
$393K low$458K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$161,000 · Sep 9, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,423 (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.$116,535 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,769
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$93,766
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$108,324
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$349,605

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.42
11
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
27
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
83
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%

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.0.31
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
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.Patio · 144 ft²Porch · 272 ft²

Transaction History(5)

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 SchoolA-
Middle · Grades 6–8 · 0.9 mi
E
Mascoutah Elementary SchoolA
Elementary · Grades PK–5 · 1.0 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

545 Streamstone Ln 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 91% of homes in St. Clair County
  • Among the highest price per square foot in St. Clair County
  • Smaller than 76% of homes in Mascoutah 62258
  • Has a bigger lot than 65% of homes in Mascoutah 62258
  • Newer than 90% of homes in St. Clair County

What homes are worth in Mascoutah 62258

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

This home
$83K$591K

This home is worth more than 86% of homes in Mascoutah 62258.

How it measures up in Mascoutah 62258

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

Estimated value$425,529
CheaperTypical $274,183Pricier

Pricier than 86% of homes nearby

Price per ft²$430
CheaperTypical $198Pricier

Pricier than 97% of homes nearby

Living area990 ft²
SmallerTypical 1,320 ft²Bigger

Bigger than 24% of homes nearby

Lot size0.31 ac
SmallerTypical 0.25 acBigger

Bigger than 65% of homes nearby

Year built2005
OlderTypical 1983Newer

Newer than 74% of homes nearby

How 545 Streamstone Ln ranks against every home in each area.
MeasureThis homeMascoutah 62258St. Clair County
Estimated valuepricier than$425,52986% of homes91% of homes
Price per ft²pricier than$43097% of homesalmost all homes
Living areabigger than990 ft²24% of homes31% of homes
Lot sizebigger than0.31 ac65% of homes65% of homes
Year builtnewer than200574% of homes90% of homes

About 545 Streamstone Ln

How much is 545 Streamstone Ln, Mascoutah, IL worth?

The TopHap Estimate for 545 Streamstone Ln, Mascoutah, IL is $425,529 as of Sep 24, 2026. The likely range is $392,647 to $458,411. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 545 Streamstone Ln, Mascoutah, IL last sell?

545 Streamstone Ln, Mascoutah, IL last sold on Sep 9, 2016 for $161,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 545 Streamstone Ln, Mascoutah, IL?

545 Streamstone Ln, Mascoutah, IL has 4 bathrooms, 990 square feet of living space and a 0.31-acre lot.

When was 545 Streamstone Ln, Mascoutah, IL built?

545 Streamstone Ln, Mascoutah, IL was built in 2005, making it 21 years old. The building has 2 stories.

What schools serve 545 Streamstone Ln, Mascoutah, IL?

545 Streamstone Ln, Mascoutah, IL is assigned to Mascoutah Middle School (middle), rated A-; 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 545 Streamstone Ln, Mascoutah, IL compare to other homes in Mascoutah 62258?

Among the 4,016 homes in Mascoutah 62258, it is worth more than 86% of them ($425,529 against a typical $274,183), its price per square foot is higher than 97% of them ($430 against a typical $198), it is bigger than 24% of them (990 ft² against a typical 1,320 ft²), its lot is bigger than 65% of them (0.31 ac against a typical 0.25 ac) and it is newer than 74% of them (2005 against a typical 1983). Measured against all of St. Clair County, it is worth more than 91% 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 545 Streamstone Ln, Mascoutah, IL?

The 2025 property tax bill for 545 Streamstone Ln, Mascoutah, IL was $8,423. The county assessed it at $116,535.

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