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Single Family ResidenceResidential
$100,731$98 / 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 66How 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 $80,000 on Jun 5, 2007

403 W SOPER ST

WINNEBAGO, IL 61088
2
Beds
1
Baths
1,030 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.
4,100 ft²
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$101K
$66K low$135K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$80,000 · Jun 5, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,517 (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.$18,342 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,213
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$16,129
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$16,516
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$55,026

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.34
27
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
65
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
3
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.4 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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
CountyWINNEBAGO
Lot (acres)The size of the land the home sits on, from county records.0.09
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.No Foundation
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

Transaction History(6)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

E
Dorothy Simon Elementary School
Elementary · Grades PK–2 · 0.3 mi
M
Winnebago Middle SchoolB-
Middle · Grades 6–8 · 0.5 mi
H
Winnebago High SchoolB
High · Grades 9–12 · 0.6 mi

District: Winnebago Community Unit School District 323

Neighborhood · ZIP 61088These 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.133
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.36

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.4,637
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.93 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,524
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,382
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.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

403 W Soper 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.

  • Among the least valuable homes in Winnebago 61088
  • Costs less per square foot than 75% of homes in Winnebago County
  • Among the smallest homes in Winnebago 61088
  • Among the smallest lots in Winnebago County
  • Older than 88% of homes in Winnebago 61088

What homes are worth in Winnebago 61088

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

This home
$118K$512K

This home is worth less than almost all homes in Winnebago 61088.

How it measures up in Winnebago 61088

The dot is this home. The mark in the middle is the typical home in Winnebago 61088.

Estimated value$100,731
CheaperTypical $268,282Pricier

Cheaper than almost all homes nearby

Price per ft²$98
CheaperTypical $96Pricier

Pricier than 52% of homes nearby

Living area1,030 ft²
SmallerTypical 2,572 ft²Bigger

Smaller than almost all homes nearby

Lot size4,100 ft²
SmallerTypical 0.35 acBigger

Smaller than almost all homes nearby

Year built1940
OlderTypical 1994Newer

Newer than 12% of homes nearby

How 403 W Soper St ranks against every home in each area.
MeasureThis homeWinnebago 61088Winnebago County
Estimated valuepricier than$100,731almost no homes12% of homes
Price per ft²pricier than$9852% of homes25% of homes
Living areabigger than1,030 ft²almost no homes13% of homes
Lot sizebigger than4,100 ft²almost no homesalmost no homes
Year builtnewer than194012% of homes20% of homes

About 403 W Soper St

How much is 403 W Soper St, Winnebago, IL worth?

The TopHap Estimate for 403 W Soper St, Winnebago, IL is $100,731 as of Sep 24, 2026. The likely range is $66,018 to $135,444. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 403 W Soper St, Winnebago, IL last sell?

403 W Soper St, Winnebago, IL last sold on Jun 5, 2007 for $80,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 403 W Soper St, Winnebago, IL?

403 W Soper St, Winnebago, IL has 2 bedrooms, 1 bathrooms, 1,030 square feet of living space and a 0.09-acre lot.

When was 403 W Soper St, Winnebago, IL built?

403 W Soper St, Winnebago, IL was built in 1940, making it 86 years old. The building has 1 story.

What schools serve 403 W Soper St, Winnebago, IL?

403 W Soper St, Winnebago, IL is assigned to Dorothy Simon Elementary School (elementary); Winnebago Middle School (middle), rated B-; Winnebago High School (high), rated B. All sit in Winnebago Community Unit School District 323. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 403 W Soper St, Winnebago, IL compare to other homes in Winnebago 61088?

Among the 2,132 homes in Winnebago 61088, it is worth more than almost none of them ($100,731 against a typical $268,282), its price per square foot is higher than 52% of them ($98 against a typical $96), it is bigger than almost none of them (1,030 ft² against a typical 2,572 ft²), its lot is bigger than almost none of them (4,100 ft² against a typical 0.35 ac) and it is newer than 12% of them (1940 against a typical 1994). Measured against all of Winnebago County, it is worth more than 12% 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 403 W Soper St, Winnebago, IL?

The 2025 property tax bill for 403 W Soper St, Winnebago, IL was $1,517. The county assessed it at $18,342.

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