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Rural ResidenceResidential
$529,738$328 / 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 88How 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

6503 S IL ROUTE 23

MARENGO, IL 60152
0
Baths
1,614 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.
51.95 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.

Valuation

$530K
$464K low$595K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,177 (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.$123,901 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$25,097
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$98,804
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$110,683
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$371,703

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
CountyMcHenry
Lot (acres)The size of the land the home sits on, from county records.51.95
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
HeatingThe type of heating system in the home.None

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Marengo High SchoolA-
High · Grades 9–12 · 1.5 mi
E
Riley SchoolB+
Elementary · Grades KG–8 · 3.1 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

6503 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 84% of homes in McHenry County
  • Costs more per square foot than 97% of homes in McHenry County
  • Smaller than 79% of homes in Marengo 60152
  • Among the largest lots in McHenry County
  • Older than 90% of homes in Marengo 60152

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 83% 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$529,738
CheaperTypical $357,090Pricier

Pricier than 83% of homes nearby

Price per ft²$328
CheaperTypical $203Pricier

Pricier than 91% of homes nearby

Living area1,614 ft²
SmallerTypical 2,270 ft²Bigger

Bigger than 21% of homes nearby

Lot size51.95 ac
SmallerTypical 0.5 acBigger

Bigger than 98% of homes nearby

Year built1950
OlderTypical 1992Newer

Newer than 10% of homes nearby

How 6503 S Il Route 23 ranks against every home in each area.
MeasureThis homeMarengo 60152McHenry County
Estimated valuepricier than$529,73883% of homes84% of homes
Price per ft²pricier than$32891% of homes97% of homes
Living areabigger than1,614 ft²21% of homes42% of homes
Lot sizebigger than51.95 ac98% of homesalmost all homes
Year builtnewer than195010% of homes12% of homes

About 6503 S Il Route 23

How much is 6503 S Il Route 23, Marengo, IL worth?

The TopHap Estimate for 6503 S Il Route 23, Marengo, IL is $529,738 as of Aug 30, 2026. The likely range is $463,980 to $595,496. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6503 S Il Route 23, Marengo, IL last sell?

6503 S Il Route 23, Marengo, IL last sold on Feb 18, 1992, according to the county's recorded deed.

How big is 6503 S Il Route 23, Marengo, IL?

6503 S Il Route 23, Marengo, IL has 1,614 square feet of living space and a 51.95-acre lot.

When was 6503 S Il Route 23, Marengo, IL built?

6503 S Il Route 23, Marengo, IL was built in 1950, making it 76 years old.

What schools serve 6503 S Il Route 23, Marengo, IL?

6503 S Il Route 23, Marengo, IL is assigned to Marengo High School (high), rated A-; Riley School (elementary), rated B+. All sit in Riley Community Consolidated School District 18. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6503 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 83% of them ($529,738 against a typical $357,090), its price per square foot is higher than 91% of them ($328 against a typical $203), it is bigger than 21% of them (1,614 ft² against a typical 2,270 ft²), its lot is bigger than 98% of them (51.95 ac against a typical 0.5 ac) and it is newer than 10% of them (1950 against a typical 1992). Measured against all of McHenry County, it is worth more than 84% 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 6503 S Il Route 23, Marengo, IL?

The 2024 property tax bill for 6503 S Il Route 23, Marengo, IL was $6,177. The county assessed it at $123,901.

More homes on S Il Route 23

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