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Single Family ResidenceResidential
$116,840$149 / 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 87How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $98,000 on Dec 28, 2011

503 W SOUTH ST

MASCOUTAH, IL 62258
2
Baths
784 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$117K
$101K low$133K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$98,000 · Dec 28, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,196 (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.$36,380 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,420
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$32,960
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$33,817
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$109,140

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
41
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.
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.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.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.1985
Lot (acres)The size of the land the home sits on, from county records.0.11
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
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.Porch · 160 ft²

Transaction History(3)

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
Mascoutah Elementary SchoolA
Elementary · Grades PK–5 · 0.4 mi
M
Mascoutah Middle SchoolA-
Middle · Grades 6–8 · 0.7 mi
H
Mascoutah High SchoolA-
High · Grades 9–12 · 0.8 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%

Owner Tools

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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

503 W South 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 91% of homes in Mascoutah 62258
  • Costs less per square foot than 79% of homes in Mascoutah 62258
  • Smaller than 90% of homes in Mascoutah 62258
  • Has a smaller lot than 94% of homes in St. Clair County
  • Older than 82% of homes in Mascoutah 62258

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
$78K$581K

This home is worth more than 9% 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$116,840
CheaperTypical $271,897Pricier

Pricier than 9% of homes nearby

Price per ft²$149
CheaperTypical $193Pricier

Pricier than 21% of homes nearby

Living area784 ft²
SmallerTypical 1,320 ft²Bigger

Bigger than 10% of homes nearby

Lot size0.11 ac
SmallerTypical 0.25 acBigger

Bigger than 7% of homes nearby

Year built1940
OlderTypical 1984Newer

Newer than 18% of homes nearby

How 503 W South St ranks against every home in each area.
MeasureThis homeMascoutah 62258St. Clair County
Estimated valuepricier than$116,8409% of homes31% of homes
Price per ft²pricier than$14921% of homes51% of homes
Living areabigger than784 ft²10% of homes11% of homes
Lot sizebigger than0.11 ac7% of homes6% of homes
Year builtnewer than194018% of homes21% of homes

About 503 W South St

How much is 503 W South St, Mascoutah, IL worth?

The TopHap Estimate for 503 W South St, Mascoutah, IL is $116,840 as of Oct 21, 2026. The likely range is $101,084 to $132,596. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 503 W South St, Mascoutah, IL last sell?

503 W South St, Mascoutah, IL last sold on Dec 28, 2011 for $98,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 503 W South St, Mascoutah, IL?

503 W South St, Mascoutah, IL has 2 bathrooms, 784 square feet of living space and a 0.11-acre lot.

When was 503 W South St, Mascoutah, IL built?

503 W South St, Mascoutah, IL was built in 1940, making it 86 years old. The building has 1 story.

What schools serve 503 W South St, Mascoutah, IL?

503 W South St, Mascoutah, IL is assigned to Mascoutah Elementary School (elementary), rated A; Mascoutah Middle School (middle), 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 503 W South St, Mascoutah, IL compare to other homes in Mascoutah 62258?

Among the 4,016 homes in Mascoutah 62258, it is worth more than 9% of them ($116,840 against a typical $271,897), its price per square foot is higher than 21% of them ($149 against a typical $193), it is bigger than 10% of them (784 ft² against a typical 1,320 ft²), its lot is bigger than 7% of them (0.11 ac against a typical 0.25 ac) and it is newer than 18% of them (1940 against a typical 1984). Measured against all of St. Clair County, it is worth more than 31% 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 503 W South St, Mascoutah, IL?

The 2025 property tax bill for 503 W South St, Mascoutah, IL was $2,196. The county assessed it at $36,380.

More homes on W South St

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