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Single Family ResidenceResidential
$113,113$139 / 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 84How 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 $105,000 on Apr 30, 2025

521 N CHICAGO AVE

ROCKFORD, IL 61107
2
Beds
1
Baths
816 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$113K
$95K low$132K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$105,000 · Apr 30, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,511 (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.$37,881 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,562
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$31,319
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$33,995
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$113,643

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
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
12
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
68
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
62
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
31
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
StyleThe architectural style of the home, such as ranch or colonial.Bungalow
CountyWINNEBAGO
Lot (acres)The size of the land the home sits on, from county records.0.18
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Alley
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 198 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.

M
Lincoln Middle SchoolD
Middle · Grades 6–8 · 0.7 mi
E
Bloom Elementary SchoolC-
Elementary · Grades KG–5 · 0.9 mi
H
East High SchoolF
High · Grades 9–12 · 1.2 mi

District: Rockford School District 205

Neighborhood · ZIP 61107These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.41

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.29,768
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,019 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,050
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$94,291
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.34 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

521 N Chicago Ave 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 North Highland
  • Costs more per square foot than 88% of homes in North Highland
  • Among the smallest homes in Rockford 61107
  • Has a bigger lot than 90% of homes in North Highland
  • Older than 92% of homes in Rockford 61107

What homes are worth in Rockford 61107

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

This home
$103K$560K

This home is worth more than 3% of homes in Rockford 61107.

How it measures up in Rockford 61107

The dot is this home. The mark in the middle is the typical home in Rockford 61107.

Estimated value$113,113
CheaperTypical $224,090Pricier

Pricier than 3% of homes nearby

Price per ft²$139
CheaperTypical $120Pricier

Pricier than 70% of homes nearby

Living area816 ft²
SmallerTypical 1,925 ft²Bigger

Smaller than almost all homes nearby

Lot size0.18 ac
SmallerTypical 0.26 acBigger

Bigger than 23% of homes nearby

Year built1920
OlderTypical 1959Newer

Newer than 8% of homes nearby

How 521 N Chicago Ave ranks against every home in each area.
MeasureThis homeNorth HighlandRockford 61107Winnebago County
Estimated valuepricier than$113,113almost no homes3% of homes17% of homes
Price per ft²pricier than$13988% of homes70% of homes60% of homes
Living areabigger than816 ft²almost no homesalmost no homes5% of homes
Lot sizebigger than0.18 ac90% of homes23% of homes24% of homes
Year builtnewer than192016% of homes8% of homes9% of homes

About 521 N Chicago Ave

How much is 521 N Chicago Ave, Rockford, IL worth?

The TopHap Estimate for 521 N Chicago Ave, Rockford, IL is $113,113 as of Aug 30, 2026. The likely range is $94,515 to $131,711. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 N Chicago Ave, Rockford, IL last sell?

521 N Chicago Ave, Rockford, IL last sold on Apr 30, 2025 for $105,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 521 N Chicago Ave, Rockford, IL?

521 N Chicago Ave, Rockford, IL has 2 bedrooms, 1 bathrooms, 816 square feet of living space and a 0.18-acre lot.

When was 521 N Chicago Ave, Rockford, IL built?

521 N Chicago Ave, Rockford, IL was built in 1920, making it 106 years old. It is a bungalow home. The building has 1 story.

What schools serve 521 N Chicago Ave, Rockford, IL?

521 N Chicago Ave, Rockford, IL is assigned to Lincoln Middle School (middle), rated D; Bloom Elementary School (elementary), rated C-; East High School (high), rated F. All sit in Rockford School District 205. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 N Chicago Ave, Rockford, IL compare to other homes in Rockford 61107?

Among the 11,011 homes in Rockford 61107, it is worth more than 3% of them ($113,113 against a typical $224,090), its price per square foot is higher than 70% of them ($139 against a typical $120), it is bigger than almost none of them (816 ft² against a typical 1,925 ft²), its lot is bigger than 23% of them (0.18 ac against a typical 0.26 ac) and it is newer than 8% of them (1920 against a typical 1959). Measured against all of Winnebago County, it is worth more than 17% 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 521 N Chicago Ave, Rockford, IL?

The 2025 property tax bill for 521 N Chicago Ave, Rockford, IL was $2,511. The county assessed it at $37,881.

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