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Single Family ResidenceResidential
$353,737$94 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $237,700 on Dec 27, 2007

5566 SONJA LN

ROCKFORD, IL 61109
3
Beds
2.5
Baths
3,764 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
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.

Valuation

$354K
$340K low$367K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$237,700 · Dec 27, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,483 (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.$94,761 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,484
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$83,277
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$85,718
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$284,283

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.
9
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.
59
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
Lot (acres)The size of the land the home sits on, from county records.0.29
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.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 · 130 ft²

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.

H
Jefferson High SchoolF
High · Grades 9–12 · 0.5 mi
E
Arthur W. Froberg Elementary SchoolD+
Elementary · Grades KG–5 · 1.3 mi
M
Flinn Middle SchoolD-
Middle · Grades 6–8 · 2.7 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%

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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

5566 Sonja Ln 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 97% of homes in CMC
  • Costs less per square foot than 77% of homes in Winnebago County
  • Bigger than 97% of homes in Winnebago County
  • Has a smaller lot than 80% of homes in CMC
  • Among the newest 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
$48K$392K

This home is worth more than 97% 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$353,737
CheaperTypical $198,344Pricier

Pricier than 97% of homes nearby

Price per ft²$94
CheaperTypical $92Pricier

Pricier than 52% of homes nearby

Living area3,764 ft²
SmallerTypical 1,876 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.29 ac
SmallerTypical 0.31 acBigger

Bigger than 48% of homes nearby

Year built2007
OlderTypical 1970Newer

Newer than almost all homes nearby

How 5566 Sonja Ln ranks against every home in each area.
MeasureThis homeCMCRockford 61109Winnebago County
Estimated valuepricier than$353,73797% of homes97% of homes89% of homes
Price per ft²pricier than$9464% of homes52% of homes23% of homes
Living areabigger than3,764 ft²83% of homes95% of homes97% of homes
Lot sizebigger than0.29 ac20% of homes48% of homes51% of homes
Year builtnewer than200794% of homesalmost all homes98% of homes

About 5566 Sonja Ln

How much is 5566 Sonja Ln, Rockford, IL worth?

The TopHap Estimate for 5566 Sonja Ln, Rockford, IL is $353,737 as of Oct 21, 2026. The likely range is $339,992 to $367,482. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 5566 Sonja Ln, Rockford, IL last sell?

5566 Sonja Ln, Rockford, IL last sold on Dec 27, 2007 for $237,700, according to the county's recorded deed.

How big is 5566 Sonja Ln, Rockford, IL?

5566 Sonja Ln, Rockford, IL has 3 bedrooms, 2.5 bathrooms, 3,764 square feet of living space and a 0.29-acre lot.

When was 5566 Sonja Ln, Rockford, IL built?

5566 Sonja Ln, Rockford, IL was built in 2007, making it 19 years old. The building has 1 story.

What schools serve 5566 Sonja Ln, Rockford, IL?

5566 Sonja Ln, Rockford, IL is assigned to Jefferson High School (high), rated F; Arthur W. Froberg Elementary School (elementary), rated D+; Flinn 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 5566 Sonja Ln, Rockford, IL compare to other homes in Rockford 61109?

Among the 8,744 homes in Rockford 61109, it is worth more than 97% of them ($353,737 against a typical $198,344), its price per square foot is higher than 52% of them ($94 against a typical $92), it is bigger than 95% of them (3,764 ft² against a typical 1,876 ft²), its lot is bigger than 48% of them (0.29 ac against a typical 0.31 ac) and it is newer than almost all of them (2007 against a typical 1970). Measured against all of Winnebago County, it is worth more than 89% 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 5566 Sonja Ln, Rockford, IL?

The 2025 property tax bill for 5566 Sonja Ln, Rockford, IL was $7,483. The county assessed it at $94,761.

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