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Residential (General/Single)Residential
$638,614$253 / 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 Aug 30, 2026

10812 S IL ROUTE 23

MARENGO, IL 60152
3
Beds
0
Baths
2,520 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.
9.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1994
Year BuiltThe year the home was originally built, according to county records.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$639K
$587K low$690K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,361 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$116,589 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,331
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$94,258
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$103,893
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$349,767

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.84 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyMCHENRY
Lot (acres)The size of the land the home sits on, from county records.9.24
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Riley SchoolB+
Elementary · Grades KG–8 · 1.7 mi
H
Marengo High SchoolA-
High · Grades 9–12 · 5.4 mi

District: Riley Community Consolidated School District 18

Neighborhood · ZIP 60152These 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.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.95%
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.8.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.12,669
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.$100,828
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,862
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

10812 S Il Route 23 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 94% of homes in McHenry County
  • Costs more per square foot than 82% of homes in McHenry County
  • Bigger than 78% of homes in McHenry County
  • Has a bigger lot than 98% of homes in McHenry County

What homes are worth in Marengo 60152

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

This home
$169K$825K

This home is worth more than 92% of homes in Marengo 60152.

How it measures up in Marengo 60152

The dot is this home. The mark in the middle is the typical home in Marengo 60152.

Estimated value$638,614
CheaperTypical $357,090Pricier

Pricier than 92% of homes nearby

Price per ft²$253
CheaperTypical $203Pricier

Pricier than 76% of homes nearby

Living area2,520 ft²
SmallerTypical 2,270 ft²Bigger

Bigger than 61% of homes nearby

Lot size9.24 ac
SmallerTypical 0.5 acBigger

Bigger than 90% of homes nearby

Year built1994
OlderTypical 1992Newer

Newer than 54% of homes nearby

How 10812 S Il Route 23 ranks against every home in each area.
MeasureThis homeMarengo 60152McHenry County
Estimated valuepricier than$638,61492% of homes94% of homes
Price per ft²pricier than$25376% of homes82% of homes
Living areabigger than2,520 ft²61% of homes78% of homes
Lot sizebigger than9.24 ac90% of homes98% of homes
Year builtnewer than199454% of homes63% of homes

About 10812 S Il Route 23

How much is 10812 S Il Route 23, Marengo, IL worth?

The TopHap Estimate for 10812 S Il Route 23, Marengo, IL is $638,614 as of Aug 30, 2026. The likely range is $586,784 to $690,443. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10812 S Il Route 23, Marengo, IL last sell?

10812 S Il Route 23, Marengo, IL last sold on Mar 1, 1994, according to the county's recorded deed.

How big is 10812 S Il Route 23, Marengo, IL?

10812 S Il Route 23, Marengo, IL has 3 bedrooms, 2,520 square feet of living space and a 9.24-acre lot.

When was 10812 S Il Route 23, Marengo, IL built?

10812 S Il Route 23, Marengo, IL was built in 1994, making it 32 years old.

What schools serve 10812 S Il Route 23, Marengo, IL?

10812 S Il Route 23, Marengo, IL is assigned to Riley School (elementary), rated B+; Marengo High School (high), rated A-. All sit in Riley Community Consolidated School District 18. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10812 S Il Route 23, Marengo, IL compare to other homes in Marengo 60152?

Among the 4,436 homes in Marengo 60152, it is worth more than 92% of them ($638,614 against a typical $357,090), its price per square foot is higher than 76% of them ($253 against a typical $203), it is bigger than 61% of them (2,520 ft² against a typical 2,270 ft²), its lot is bigger than 90% of them (9.24 ac against a typical 0.5 ac) and it is newer than 54% of them (1994 against a typical 1992). Measured against all of McHenry County, it is worth more than 94% 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 10812 S Il Route 23, Marengo, IL?

The 2024 property tax bill for 10812 S Il Route 23, Marengo, IL was $5,361. The county assessed it at $116,589.

More homes on S Il Route 23

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