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Single Family ResidenceResidential
$200,533
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 86How 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 $218,186 on Aug 8, 2022

3646 TERPENING RD

ALTON, IL 62002
0
Baths
1.39 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$201K
$173K low$228K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$218,186 · Aug 8, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,231 (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.$45,946 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,179
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$42,767
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$43,841
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$137,838

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.15 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
CountyMACOUPIN
Lot (acres)The size of the land the home sits on, from county records.1.39
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Brighton North Primary School
Elementary · Grades PK–2 · 4.0 mi
H
Southwestern High SchoolC-
High · Grades 9–12 · 8.0 mi
M
Southwestern Middle SchoolC+
Middle · Grades 7–8 · 8.0 mi

District: Southwestern Community Unit School District 9

Neighborhood · ZIP 62002These 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.135
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.125

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.28,813
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.738 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$61,207
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$78,082
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.39 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

3646 Terpening Rd 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 82% of homes in Alton 62002
  • Has a bigger lot than 93% of homes in Alton 62002

What homes are worth in Alton 62002

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

This home
$28K$421K

This home is worth more than 82% of homes in Alton 62002.

How it measures up in Alton 62002

The dot is this home. The mark in the middle is the typical home in Alton 62002.

Estimated value$200,533
CheaperTypical $106,367Pricier

Pricier than 82% of homes nearby

Lot size1.39 ac
SmallerTypical 0.19 acBigger

Bigger than 93% of homes nearby

How 3646 Terpening Rd ranks against every home in each area.
MeasureThis homeAlton 62002Macoupin County
Estimated valuepricier than$200,53382% of homes79% of homes
Lot sizebigger than1.39 ac93% of homes82% of homes

About 3646 Terpening Rd

How much is 3646 Terpening Rd, Alton, IL worth?

The TopHap Estimate for 3646 Terpening Rd, Alton, IL is $200,533 as of Oct 21, 2026. The likely range is $173,365 to $227,701. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3646 Terpening Rd, Alton, IL last sell?

3646 Terpening Rd, Alton, IL last sold on Aug 8, 2022 for $218,186, according to the county's recorded deed.

What schools serve 3646 Terpening Rd, Alton, IL?

3646 Terpening Rd, Alton, IL is assigned to Brighton North Primary School (elementary); Southwestern High School (high), rated C-; Southwestern Middle School (middle), rated C+. All sit in Southwestern Community Unit School District 9. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3646 Terpening Rd, Alton, IL compare to other homes in Alton 62002?

Among the 12,598 homes in Alton 62002, it is worth more than 82% of them ($200,533 against a typical $106,367) and its lot is bigger than 93% of them (1.39 ac against a typical 0.19 ac). Measured against all of Macoupin County, it is worth more than 79% 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 3646 Terpening Rd, Alton, IL?

The 2025 property tax bill for 3646 Terpening Rd, Alton, IL was $2,231. The county assessed it at $45,946.

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Assigned schools

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