Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$407,186$101 / 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 89How 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

6551 PENGUIN CIR

ROCKFORD, IL 61109
4
Beds
2.5
Baths
4,040 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.
2.52 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$407K
$364K low$450K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$407,186
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$325,749

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,392 (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.$129,582 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$25,830
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$103,752
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$117,216
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$388,746

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.33
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
14
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
67
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
60
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
26
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
CountyWINNEBAGO
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning 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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 1,004 ft²

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

H
Jefferson High SchoolF
High · Grades 9–12 · 1.5 mi
E
Arthur W. Froberg Elementary SchoolD
Elementary · Grades KG–5 · 2.4 mi
M
Flinn Middle SchoolC-
Middle · Grades 6–8 · 3.8 mi

District: Rockford School District 205

Neighborhood · ZIP 61109These 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.100
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.42

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.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.26,851
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.669 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$61,982
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$73,739
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

6551 Penguin Cir 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 98% of homes in Rockford 61109
  • Costs more per square foot than 70% of homes in Rockford 61109
  • Bigger than 98% of homes in Winnebago County
  • Has a bigger lot than 98% of homes in Rockford 61109
  • Newer than 74% of homes in Rockford 61109

What homes are worth in Rockford 61109

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

This home
$47K$396K

This home is worth more than 98% of homes in Rockford 61109.

How it measures up in Rockford 61109

The dot is this home. The mark in the middle is the typical home in Rockford 61109.

Estimated value$407,186
CheaperTypical $197,442Pricier

Pricier than 98% of homes nearby

Price per ft²$101
CheaperTypical $87Pricier

Pricier than 70% of homes nearby

Living area4,040 ft²
SmallerTypical 1,892 ft²Bigger

Bigger than 96% of homes nearby

Lot size2.52 ac
SmallerTypical 0.3 acBigger

Bigger than 98% of homes nearby

Year built1979
OlderTypical 1970Newer

Newer than 74% of homes nearby

How 6551 Penguin Cir ranks against every home in each area.
MeasureThis homeRockford 61109Winnebago County
Estimated valuepricier than$407,18698% of homes95% of homes
Price per ft²pricier than$10170% of homes34% of homes
Living areabigger than4,040 ft²96% of homes98% of homes
Lot sizebigger than2.52 ac98% of homes93% of homes
Year builtnewer than197974% of homes68% of homes

About 6551 Penguin Cir

How much is 6551 Penguin Cir, Rockford, IL worth?

The TopHap Estimate for 6551 Penguin Cir, Rockford, IL is $407,186 as of Jul 14, 2026. The likely range is $364,318 to $450,054. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6551 Penguin Cir, Rockford, IL last sell?

6551 Penguin Cir, Rockford, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 6551 Penguin Cir, Rockford, IL?

6551 Penguin Cir, Rockford, IL has 4 bedrooms, 2.5 bathrooms and 4,040 square feet of living space.

When was 6551 Penguin Cir, Rockford, IL built?

6551 Penguin Cir, Rockford, IL was built in 1979, making it 47 years old. The building has 1 story.

What schools serve 6551 Penguin Cir, Rockford, IL?

6551 Penguin Cir, Rockford, IL is assigned to Jefferson High School (high), rated F; Arthur W. Froberg Elementary School (elementary), rated D; Flinn Middle School (middle), rated C-. All sit in Rockford School District 205. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6551 Penguin Cir, Rockford, IL compare to other homes in Rockford 61109?

Among the 8,748 homes in Rockford 61109, it is worth more than 98% of them ($407,186 against a typical $197,442), its price per square foot is higher than 70% of them ($101 against a typical $87), it is bigger than 96% of them (4,040 ft² against a typical 1,892 ft²), its lot is bigger than 98% of them (2.52 ac against a typical 0.3 ac) and it is newer than 74% of them (1979 against a typical 1970). Measured against all of Winnebago County, it is worth more than 95% 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 6551 Penguin Cir, Rockford, IL?

The 2025 property tax bill for 6551 Penguin Cir, Rockford, IL was $8,392. The county assessed it at $129,582.

Closest homes

More homes in Rockford 61109

Assigned schools

Explore the area

See this home in context

Open 6551 Penguin Cir 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