Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$197,745$221 / 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 90How 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
Last sold for $126,000 on May 22, 2007

605 W WILLIAM ST

CHAMPAIGN, IL 61820
1
Baths
896 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.
1923
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

$198K
$179K low$217K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$126,000 · May 22, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,801 (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.$55,050 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,630
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$35,420
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$50,140
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$165,150

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyChampaign
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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 Side Elementary SchoolB
Elementary · Grades KG–5 · 0.2 mi
M
Edison Middle SchoolB-
Middle · Grades 6–8 · 0.4 mi
H
Central High SchoolC
High · Grades 9–12 · 0.7 mi

District: Champaign Community Unit School District 4

Neighborhood · ZIP 61820These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.38%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.41,375
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,160 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$37,027
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$50,653
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

605 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.

  • Costs more per square foot than 81% of homes in Champaign 61820
  • Smaller than 86% of homes in Champaign County
  • Older than 85% of homes in Champaign County

What homes are worth in Champaign 61820

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

This home
$55K$440K

This home is worth more than 59% of homes in Champaign 61820.

How it measures up in Champaign 61820

The dot is this home. The mark in the middle is the typical home in Champaign 61820.

Estimated value$197,745
CheaperTypical $174,889Pricier

Pricier than 59% of homes nearby

Price per ft²$221
CheaperTypical $158Pricier

Pricier than 81% of homes nearby

Living area896 ft²
SmallerTypical 1,053 ft²Bigger

Bigger than 29% of homes nearby

Year built1923
OlderTypical 1940Newer

Newer than 41% of homes nearby

How 605 W William St ranks against every home in each area.
MeasureThis homeChampaign 61820Champaign County
Estimated valuepricier than$197,74559% of homes40% of homes
Price per ft²pricier than$22181% of homes80% of homes
Living areabigger than896 ft²29% of homes14% of homes
Year builtnewer than192341% of homes15% of homes

About 605 W William St

How much is 605 W William St, Champaign, IL worth?

The TopHap Estimate for 605 W William St, Champaign, IL is $197,745 as of Aug 30, 2026. The likely range is $178,526 to $216,964. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 605 W William St, Champaign, IL last sell?

605 W William St, Champaign, IL last sold on May 22, 2007 for $126,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 605 W William St, Champaign, IL?

605 W William St, Champaign, IL has 1 bathrooms and 896 square feet of living space.

When was 605 W William St, Champaign, IL built?

605 W William St, Champaign, IL was built in 1923, making it 103 years old. The building has 1 story.

What schools serve 605 W William St, Champaign, IL?

605 W William St, Champaign, IL is assigned to South Side Elementary School (elementary), rated B; Edison Middle School (middle), rated B-; Central High School (high), rated C. All sit in Champaign Community Unit School District 4. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 605 W William St, Champaign, IL compare to other homes in Champaign 61820?

Among the 4,905 homes in Champaign 61820, it is worth more than 59% of them ($197,745 against a typical $174,889), its price per square foot is higher than 81% of them ($221 against a typical $158), it is bigger than 29% of them (896 ft² against a typical 1,053 ft²) and it is newer than 41% of them (1923 against a typical 1940). Measured against all of Champaign County, it is worth more than 40% 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 605 W William St, Champaign, IL?

The 2024 property tax bill for 605 W William St, Champaign, IL was $4,801. The county assessed it at $55,050.

More homes on W William St

Closest homes

More homes in Champaign 61820

Assigned schools

Explore the area

See this home in context

Open 605 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