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Single Family ResidentialResidential
$246,863$332 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

642 HILL ST

SYCAMORE, IL 60178
1
Beds
1
Baths
744 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.
1998
Year BuiltThe year the home was originally built, according to county records.

Valuation

$247K
$233K low$260K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,094 (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.$72,477 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,687
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$55,790
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$68,137
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$217,431

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
CountyDeKalb
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.Retaining Wall
HeatingThe type of heating system in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 192 ft²

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
South Prairie Elementary SchoolB-
Elementary · Grades KG–5 · 0.2 mi
H
Sycamore High SchoolB+
High · Grades 9–12 · 0.6 mi
M
Sycamore Middle SchoolB-
Middle · Grades 6–8 · 1.8 mi

District: Sycamore Community Unit School District 427

Neighborhood · ZIP 60178These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.51

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.9%
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.23,227
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.340 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,175
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$103,851
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

642 Hill 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 74% of homes in Sycamore 60178
  • Costs more per square foot than 89% of homes in Sycamore 60178
  • Smaller than 94% of homes in Sycamore 60178

What homes are worth in Sycamore 60178

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

This home
$170K$650K

This home is worth more than 26% of homes in Sycamore 60178.

How it measures up in Sycamore 60178

The dot is this home. The mark in the middle is the typical home in Sycamore 60178.

Estimated value$246,863
CheaperTypical $317,552Pricier

Pricier than 26% of homes nearby

Price per ft²$332
CheaperTypical $232Pricier

Pricier than 89% of homes nearby

Living area744 ft²
SmallerTypical 1,335 ft²Bigger

Bigger than 6% of homes nearby

Year built1998
OlderTypical 1991Newer

Newer than 59% of homes nearby

How 642 Hill St ranks against every home in each area.
MeasureThis homeSycamore 60178DeKalb County
Estimated valuepricier than$246,86326% of homes34% of homes
Price per ft²pricier than$33289% of homes89% of homes
Living areabigger than744 ft²6% of homes7% of homes
Year builtnewer than199859% of homes56% of homes

About 642 Hill St

How much is 642 Hill St, Sycamore, IL worth?

The TopHap Estimate for 642 Hill St, Sycamore, IL is $246,863 as of Sep 24, 2026. The likely range is $233,403 to $260,323. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 642 Hill St, Sycamore, IL?

642 Hill St, Sycamore, IL has 1 bedrooms, 1 bathrooms and 744 square feet of living space.

When was 642 Hill St, Sycamore, IL built?

642 Hill St, Sycamore, IL was built in 1998, making it 28 years old.

What schools serve 642 Hill St, Sycamore, IL?

642 Hill St, Sycamore, IL is assigned to South Prairie Elementary School (elementary), rated B-; Sycamore High School (high), rated B+; Sycamore Middle School (middle), rated B-. All sit in Sycamore Community Unit School District 427. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 642 Hill St, Sycamore, IL compare to other homes in Sycamore 60178?

Among the 7,693 homes in Sycamore 60178, it is worth more than 26% of them ($246,863 against a typical $317,552), its price per square foot is higher than 89% of them ($332 against a typical $232), it is bigger than 6% of them (744 ft² against a typical 1,335 ft²) and it is newer than 59% of them (1998 against a typical 1991). Measured against all of DeKalb County, it is worth more than 34% 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 642 Hill St, Sycamore, IL?

The 2025 property tax bill for 642 Hill St, Sycamore, IL was $5,094. The county assessed it at $72,477.

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