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Single Family ResidenceResidential
$362,870
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

9530 KNOLLTOP RD

UNION, IL 60180
3
Beds
1
Baths
1.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1972
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$363K
$318K low$407K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,182 (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.$123,934 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,940
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$103,994
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$112,076
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$371,802

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMcHenry
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes

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
Leggee Elementary SchoolA
Elementary · Grades KG–5 · 2.6 mi
H
Huntley High SchoolA
High · Grades 9–12 · 2.8 mi
M
Marlowe Middle SchoolB+
Middle · Grades 6–8 · 5.1 mi

District: Huntley Consolidated School District 158

Neighborhood · ZIP 60180These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.48

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.3,015
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.145 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$125,446
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$133,187
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

9530 Knolltop 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.

  • Has a bigger lot than 90% of homes in McHenry County
  • Older than 72% of homes in McHenry County

What homes are worth in Union 60180

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

This home
$182K$758K

This home is worth more than 42% of homes in Union 60180.

How it measures up in Union 60180

The dot is this home. The mark in the middle is the typical home in Union 60180.

Estimated value$362,870
CheaperTypical $396,996Pricier

Pricier than 42% of homes nearby

Lot size1.36 ac
SmallerTypical 1.16 acBigger

Bigger than 57% of homes nearby

Year built1972
OlderTypical 1975Newer

Newer than 44% of homes nearby

How 9530 Knolltop Rd ranks against every home in each area.
MeasureThis homeUnion 60180McHenry County
Estimated valuepricier than$362,87042% of homes49% of homes
Lot sizebigger than1.36 ac57% of homes90% of homes
Year builtnewer than197244% of homes28% of homes

About 9530 Knolltop Rd

How much is 9530 Knolltop Rd, Union, IL worth?

The TopHap Estimate for 9530 Knolltop Rd, Union, IL is $362,870 as of Aug 30, 2026. The likely range is $318,432 to $407,308. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 9530 Knolltop Rd, Union, IL?

9530 Knolltop Rd, Union, IL has 3 bedrooms and 1 bathrooms.

When was 9530 Knolltop Rd, Union, IL built?

9530 Knolltop Rd, Union, IL was built in 1972, making it 54 years old. The building has 2 stories.

What schools serve 9530 Knolltop Rd, Union, IL?

9530 Knolltop Rd, Union, IL is assigned to Leggee Elementary School (elementary), rated A; Huntley High School (high), rated A; Marlowe Middle School (middle), rated B+. All sit in Huntley Consolidated School District 158. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9530 Knolltop Rd, Union, IL compare to other homes in Union 60180?

Among the 652 homes in Union 60180, it is worth more than 42% of them ($362,870 against a typical $396,996), its lot is bigger than 57% of them (1.36 ac against a typical 1.16 ac) and it is newer than 44% of them (1972 against a typical 1975). Measured against all of McHenry County, it is worth more than 49% 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 9530 Knolltop Rd, Union, IL?

The 2024 property tax bill for 9530 Knolltop Rd, Union, IL was $7,182. The county assessed it at $123,934.

More homes on Knolltop Rd

Closest homes

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Assigned schools

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