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Single Family ResidenceResidential
$227,427
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 Oct 21, 2026

17618 JOHNSON ST

UNION, IL 60180
3
Beds
1
Baths
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$227K
$200K low$255K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,858 (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.$61,705 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,462
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$51,243
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$55,801
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$185,115

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)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Raised (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central

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.

H
Marengo High SchoolB-
High · Grades 9–12 · 2.4 mi
M
Marengo Community Middle SchoolB-
Middle · Grades 6–8 · 2.8 mi
E
Locust Elementary SchoolB+
Elementary · Grades PK–3 · 2.9 mi

District: Marengo-Union Elementary Consolidated District 165

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

17618 Johnson 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 92% of homes in Union 60180
  • Has a smaller lot than 93% of homes in Union 60180
  • Older than 97% 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
$177K$817K

This home is worth more than 8% 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$227,427
CheaperTypical $404,045Pricier

Pricier than 8% of homes nearby

Lot size0.21 ac
SmallerTypical 1.17 acBigger

Bigger than 7% of homes nearby

Year built1920
OlderTypical 1975Newer

Newer than 20% of homes nearby

How 17618 Johnson St ranks against every home in each area.
MeasureThis homeUnion 60180McHenry County
Estimated valuepricier than$227,4278% of homes10% of homes
Lot sizebigger than0.21 ac7% of homes32% of homes
Year builtnewer than192020% of homes3% of homes

About 17618 Johnson St

How much is 17618 Johnson St, Union, IL worth?

The TopHap Estimate for 17618 Johnson St, Union, IL is $227,427 as of Oct 21, 2026. The likely range is $200,303 to $254,551. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 17618 Johnson St, Union, IL?

17618 Johnson St, Union, IL has 3 bedrooms and 1 bathrooms.

When was 17618 Johnson St, Union, IL built?

17618 Johnson St, Union, IL was built in 1920, making it 106 years old. The building has 1 story.

What schools serve 17618 Johnson St, Union, IL?

17618 Johnson St, Union, IL is assigned to Marengo High School (high), rated B-; Marengo Community Middle School (middle), rated B-; Locust Elementary School (elementary), rated B+. All sit in Marengo-Union Elementary Consolidated District 165. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17618 Johnson St, Union, IL compare to other homes in Union 60180?

Among the 655 homes in Union 60180, it is worth more than 8% of them ($227,427 against a typical $404,045), its lot is bigger than 7% of them (0.21 ac against a typical 1.17 ac) and it is newer than 20% of them (1920 against a typical 1975). Measured against all of McHenry County, it is worth more than 10% 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 17618 Johnson St, Union, IL?

The 2024 property tax bill for 17618 Johnson St, Union, IL was $2,858. The county assessed it at $61,705.

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Assigned schools

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