Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$139,590$145 / 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 94How 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
Last sold for $833,333 on Jul 14, 2025

1620 W WILLIAM ST

CHAMPAIGN, IL 61821
1
Baths
960 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1953
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$140K
$131K low$148K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$833,333 · Jul 14, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,597 (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.$40,150 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,090
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$24,060
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$35,780
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$120,450

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCHAMPAIGN
Lot (acres)The size of the land the home sits on, from county records.0.21
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 216 ft²

Transaction History(3)

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
Centennial High SchoolC-
High · Grades 9–12 · 0.4 mi
E
Westview Elementary SchoolD+
Elementary · Grades KG–5 · 0.4 mi
M
Jefferson Middle SchoolD+
Middle · Grades 6–8 · 0.5 mi

District: Champaign Community Unit School District 4

Neighborhood · ZIP 61821These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.49

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.31,352
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,528 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,699
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,842
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

Owner Tools

Do you own this home?
Claim this home

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

1620 W William 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 82% of homes in Champaign 61821
  • Costs less per square foot than 67% of homes in Champaign 61821
  • Smaller than 79% of homes in Champaign County
  • Has a bigger lot than 74% of homes in Champaign 61821
  • Older than 75% of homes in Champaign 61821

What homes are worth in Champaign 61821

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

This home
$84K$538K

This home is worth more than 18% of homes in Champaign 61821.

How it measures up in Champaign 61821

The dot is this home. The mark in the middle is the typical home in Champaign 61821.

Estimated value$139,590
CheaperTypical $197,852Pricier

Pricier than 18% of homes nearby

Price per ft²$145
CheaperTypical $161Pricier

Pricier than 33% of homes nearby

Living area960 ft²
SmallerTypical 1,168 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.21 ac
SmallerTypical 0.17 acBigger

Bigger than 74% of homes nearby

Year built1953
OlderTypical 1961Newer

Newer than 25% of homes nearby

How 1620 W William St ranks against every home in each area.
MeasureThis homeChampaign 61821Champaign County
Estimated valuepricier than$139,59018% of homes20% of homes
Price per ft²pricier than$14533% of homes36% of homes
Living areabigger than960 ft²23% of homes21% of homes
Lot sizebigger than0.21 ac74% of homes50% of homes
Year builtnewer than195325% of homes32% of homes

About 1620 W William St

How much is 1620 W William St, Champaign, IL worth?

The TopHap Estimate for 1620 W William St, Champaign, IL is $139,590 as of Sep 24, 2026. The likely range is $130,695 to $148,485. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1620 W William St, Champaign, IL last sell?

1620 W William St, Champaign, IL last sold on Jul 14, 2025 for $833,333, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 1620 W William St, Champaign, IL?

1620 W William St, Champaign, IL has 1 bathrooms, 960 square feet of living space and a 0.21-acre lot.

When was 1620 W William St, Champaign, IL built?

1620 W William St, Champaign, IL was built in 1953, making it 73 years old. The building has 1 story.

What schools serve 1620 W William St, Champaign, IL?

1620 W William St, Champaign, IL is assigned to Centennial High School (high), rated C-; Westview Elementary School (elementary), rated D+; Jefferson Middle School (middle), rated D+. All sit in Champaign Community Unit School District 4. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1620 W William St, Champaign, IL compare to other homes in Champaign 61821?

Among the 10,340 homes in Champaign 61821, it is worth more than 18% of them ($139,590 against a typical $197,852), its price per square foot is higher than 33% of them ($145 against a typical $161), it is bigger than 23% of them (960 ft² against a typical 1,168 ft²), its lot is bigger than 74% of them (0.21 ac against a typical 0.17 ac) and it is newer than 25% of them (1953 against a typical 1961). Measured against all of Champaign County, it is worth more than 20% 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 1620 W William St, Champaign, IL?

The 2024 property tax bill for 1620 W William St, Champaign, IL was $2,597. The county assessed it at $40,150.

More homes on W William St

Closest homes

More homes in Champaign 61821

Assigned schools

Explore the area

See this home in context

Open 1620 W William St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map