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Single Family ResidenceResidential
$165,979$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 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 $160,000 on Nov 19, 2021

421 E PATTERSON ST

MASCOUTAH, IL 62258
3
Baths
952 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.
3,485 ft²
Lot SizeThe size of the land the home sits on, from county records.
1897
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$166K
$153K low$178K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$160,000 · Nov 19, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,645 (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.$50,430 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,419
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$48,011
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$46,877
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$151,290

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.
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.

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.0.08
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.Patio · 144 ft²Porch · 60 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 SchoolA-
Middle · Grades 6–8 · 0.9 mi
E
Mascoutah Elementary SchoolA
Elementary · Grades PK–5 · 0.9 mi
H
Mascoutah High SchoolA-
High · Grades 9–12 · 1.5 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

421 E Patterson 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 80% of homes in Mascoutah 62258
  • Smaller than 80% of homes in Mascoutah 62258
  • Among the smallest lots in Mascoutah 62258
  • Older than 97% 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
$77K$566K

This home is worth more than 20% 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$165,979
CheaperTypical $272,734Pricier

Pricier than 20% of homes nearby

Price per ft²$174
CheaperTypical $199Pricier

Pricier than 36% of homes nearby

Living area952 ft²
SmallerTypical 1,320 ft²Bigger

Bigger than 20% of homes nearby

Lot size3,485 ft²
SmallerTypical 0.25 acBigger

Smaller than almost all homes nearby

Year built1897
OlderTypical 1983Newer

Newer than 6% of homes nearby

How 421 E Patterson St ranks against every home in each area.
MeasureThis homeMascoutah 62258St. Clair County
Estimated valuepricier than$165,97920% of homes45% of homes
Price per ft²pricier than$17436% of homes62% of homes
Living areabigger than952 ft²20% of homes26% of homes
Lot sizebigger than3,485 ft²almost no homes3% of homes
Year builtnewer than18976% of homes3% of homes

About 421 E Patterson St

How much is 421 E Patterson St, Mascoutah, IL worth?

The TopHap Estimate for 421 E Patterson St, Mascoutah, IL is $165,979 as of Sep 24, 2026. The likely range is $153,477 to $178,481. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 E Patterson St, Mascoutah, IL last sell?

421 E Patterson St, Mascoutah, IL last sold on Nov 19, 2021 for $160,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 421 E Patterson St, Mascoutah, IL?

421 E Patterson St, Mascoutah, IL has 3 bathrooms, 952 square feet of living space and a 0.08-acre lot.

When was 421 E Patterson St, Mascoutah, IL built?

421 E Patterson St, Mascoutah, IL was built in 1897, making it 129 years old. The building has 1 story.

What schools serve 421 E Patterson St, Mascoutah, IL?

421 E Patterson St, 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 421 E Patterson St, Mascoutah, IL compare to other homes in Mascoutah 62258?

Among the 4,016 homes in Mascoutah 62258, it is worth more than 20% of them ($165,979 against a typical $272,734), its price per square foot is higher than 36% of them ($174 against a typical $199), it is bigger than 20% of them (952 ft² against a typical 1,320 ft²), its lot is bigger than almost none of them (3,485 ft² against a typical 0.25 ac) and it is newer than 6% of them (1897 against a typical 1983). Measured against all of St. Clair County, it is worth more than 45% 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 421 E Patterson St, Mascoutah, IL?

The 2025 property tax bill for 421 E Patterson St, Mascoutah, IL was $3,645. The county assessed it at $50,430.

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