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Single Family ResidenceResidential
$185,581$121 / 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 97How 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

1604 W WILLIAM ST

CHAMPAIGN, IL 61821
1
Baths
1,540 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.
1957
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

$186K
$180K low$191K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,055 (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.$57,500 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$14,340
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$43,160
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$52,370
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$172,500

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

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.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed
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.Deck · 192 ft²Shed · 320 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Westview Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
H
Centennial High SchoolC+
High · Grades 9–12 · 0.5 mi
M
Jefferson Middle SchoolB-
Middle · Grades 6–8 · 0.6 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%

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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

1604 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 less per square foot than 87% of homes in Champaign 61821
  • Bigger than 80% 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
$87K$544K

This home is worth more than 44% 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$185,581
CheaperTypical $197,350Pricier

Pricier than 44% of homes nearby

Price per ft²$121
CheaperTypical $160Pricier

Pricier than 13% of homes nearby

Living area1,540 ft²
SmallerTypical 1,165 ft²Bigger

Bigger than 80% of homes nearby

Year built1957
OlderTypical 1960Newer

Newer than 38% of homes nearby

How 1604 W William St ranks against every home in each area.
MeasureThis homeChampaign 61821Champaign County
Estimated valuepricier than$185,58144% of homes36% of homes
Price per ft²pricier than$12113% of homes18% of homes
Living areabigger than1,540 ft²80% of homes73% of homes
Year builtnewer than195738% of homes40% of homes

About 1604 W William St

How much is 1604 W William St, Champaign, IL worth?

The TopHap Estimate for 1604 W William St, Champaign, IL is $185,581 as of Aug 30, 2026. The likely range is $180,097 to $191,065. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 1604 W William St, Champaign, IL?

1604 W William St, Champaign, IL has 1 bathrooms and 1,540 square feet of living space.

When was 1604 W William St, Champaign, IL built?

1604 W William St, Champaign, IL was built in 1957, making it 69 years old. The building has 1 story.

What schools serve 1604 W William St, Champaign, IL?

1604 W William St, Champaign, IL is assigned to Westview Elementary School (elementary), rated B; Centennial High School (high), rated C+; Jefferson Middle School (middle), rated B-. All sit in Champaign Community Unit School District 4. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1604 W William St, Champaign, IL compare to other homes in Champaign 61821?

Among the 10,352 homes in Champaign 61821, it is worth more than 44% of them ($185,581 against a typical $197,350), its price per square foot is higher than 13% of them ($121 against a typical $160), it is bigger than 80% of them (1,540 ft² against a typical 1,165 ft²) and it is newer than 38% of them (1957 against a typical 1960). Measured against all of Champaign County, it is worth more than 36% 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 1604 W William St, Champaign, IL?

The 2024 property tax bill for 1604 W William St, Champaign, IL was $4,055. The county assessed it at $57,500.

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