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Single Family ResidenceResidential
$210,436$97 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

503 OAK KNOLLS AVE

ROCKFORD, IL 61107
4
Beds
1.5
Baths
2,169 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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

$210K
$196K low$224K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,767 (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.$64,997 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,236
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$55,761
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$58,330
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$194,991

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.32
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
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.
61
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.Cape Cod
CountyWINNEBAGO
Lot (acres)The size of the land the home sits on, from county records.0.22
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

Transaction History(1)

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
Johnson Elementary SchoolC
Elementary · Grades KG–5 · 0.6 mi
H
East High SchoolF
High · Grades 9–12 · 1.0 mi
M
Lincoln Middle SchoolD
Middle · Grades 6–8 · 1.3 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

503 Oak Knolls 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.

  • Worth more than 67% of homes in Palmwood
  • Costs less per square foot than 82% of homes in Rockford 61107
  • Bigger than 77% of homes in Palmwood
  • Has a smaller lot than 66% of homes in Winnebago County
  • Older than 73% 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
$101K$550K

This home is worth more than 44% 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$210,436
CheaperTypical $224,650Pricier

Pricier than 44% of homes nearby

Price per ft²$97
CheaperTypical $117Pricier

Pricier than 18% of homes nearby

Living area2,169 ft²
SmallerTypical 1,928 ft²Bigger

Bigger than 62% of homes nearby

Lot size0.22 ac
SmallerTypical 0.26 acBigger

Bigger than 35% of homes nearby

Year built1950
OlderTypical 1959Newer

Newer than 27% of homes nearby

How 503 Oak Knolls Ave ranks against every home in each area.
MeasureThis homePalmwoodRockford 61107Winnebago County
Estimated valuepricier than$210,43667% of homes44% of homes53% of homes
Price per ft²pricier than$9722% of homes18% of homes31% of homes
Living areabigger than2,169 ft²77% of homes62% of homes77% of homes
Lot sizebigger than0.22 ac56% of homes35% of homes34% of homes
Year builtnewer than195028% of homes27% of homes28% of homes

About 503 Oak Knolls Ave

How much is 503 Oak Knolls Ave, Rockford, IL worth?

The TopHap Estimate for 503 Oak Knolls Ave, Rockford, IL is $210,436 as of Jul 14, 2026. The likely range is $196,374 to $224,498. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 503 Oak Knolls Ave, Rockford, IL last sell?

503 Oak Knolls Ave, Rockford, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 503 Oak Knolls Ave, Rockford, IL?

503 Oak Knolls Ave, Rockford, IL has 4 bedrooms, 1.5 bathrooms, 2,169 square feet of living space and a 0.22-acre lot.

When was 503 Oak Knolls Ave, Rockford, IL built?

503 Oak Knolls Ave, Rockford, IL was built in 1950, making it 76 years old. It is a cape cod home. The building has 1 story.

What schools serve 503 Oak Knolls Ave, Rockford, IL?

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

How does 503 Oak Knolls Ave, Rockford, IL compare to other homes in Rockford 61107?

Among the 11,011 homes in Rockford 61107, it is worth more than 44% of them ($210,436 against a typical $224,650), its price per square foot is higher than 18% of them ($97 against a typical $117), it is bigger than 62% of them (2,169 ft² against a typical 1,928 ft²), its lot is bigger than 35% of them (0.22 ac against a typical 0.26 ac) and it is newer than 27% of them (1950 against a typical 1959). Measured against all of Winnebago County, it is worth more than 53% 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 503 Oak Knolls Ave, Rockford, IL?

The 2025 property tax bill for 503 Oak Knolls Ave, Rockford, IL was $4,767. The county assessed it at $64,997.

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