Single Family ResidenceResidential
426 ISLAND AVE
ROCKFORD, IL 61102
4
Beds
2
Baths
1,742 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.
1924
Year BuiltThe year the home was originally built, according to county records.
2
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.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$810 (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.$20,177 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,006
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$18,171
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$17,898
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$60,531
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWINNEBAGO
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck
Neighborhood · ZIP 61102These 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.129
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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.4%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.23%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.17,742
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.531 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$49,970
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$60,941
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
426 Island 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.
- Bigger than 85% of homes in Swifft
- Older than 90% of homes in Winnebago County
How it measures up in Rockford 61102
The dot is this home. The mark in the middle is the typical home in Rockford 61102.
Living area1,742 ft²
SmallerTypical 1,398 ft²Bigger
Bigger than 71% of homes nearby
Year built1924
OlderTypical 1949Newer
Newer than 22% of homes nearby
| Measure | This home | Swifft | Rockford 61102 | Winnebago County |
|---|---|---|---|---|
| Living areabigger than | 1,742 ft² | 85% of homes | 71% of homes | 60% of homes |
| Year builtnewer than | 1924 | 24% of homes | 22% of homes | 10% of homes |
About 426 Island Ave
When did 426 Island Ave, Rockford, IL last sell?
426 Island Ave, Rockford, IL last sold on Jan 1, 1900, according to the county's recorded deed.
How big is 426 Island Ave, Rockford, IL?
426 Island Ave, Rockford, IL has 4 bedrooms, 2 bathrooms and 1,742 square feet of living space.
When was 426 Island Ave, Rockford, IL built?
426 Island Ave, Rockford, IL was built in 1924, making it 102 years old. The building has 2 stories.
How does 426 Island Ave, Rockford, IL compare to other homes in Rockford 61102?
Among the 5,912 homes in Rockford 61102, it is bigger than 71% of them (1,742 ft² against a typical 1,398 ft²) and it is newer than 22% of them (1924 against a typical 1949). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 426 Island Ave, Rockford, IL?
The 2025 property tax bill for 426 Island Ave, Rockford, IL was $810. The county assessed it at $20,177.
Closest homes
- 426 Island Ave48 ft · 4 bd · 2 ba · 1,791 ft² · Sold Nov 2022
- 422 Island Ave92 ft · 6 bd · 2 ba · 2,244 ft² · Sold Jan 1900
- 429 Island Ave$71K154 ft · 0.15 ac · Sold $2K · Jul 2000
- 425 Island Ave$69K162 ft · 2 bd · 1 ba · 1,333 ft² · Sold Jan 1900
- 415 Illinois Ave$85K175 ft · 3 bd · 1 ba · 1,568 ft² · Sold Jan 1900
- 433 Island Ave$89K171 ft · 4 bd · 1 ba · 1,512 ft² · Sold $26K · Jul 2018
- 417 Illinois Ave181 ft · 4 bd · 4 ba · 2,277 ft² · Sold $110K · Nov 2023
- 419 Island Ave$76K183 ft · 3 bd · 1 ba · 1,410 ft² · Sold Jan 1900
More homes in Rockford 61102
- 9914 Silver Creek Rd0.34 ac · Sold $15K · Aug 2026
- 350 Cole Ave$61K2 bd · 1 ba · 745 ft² · Sold $63K · Aug 2026
- 1103 S Sunset Ave$35K2 bd · 1 ba · 1,042 ft² · Sold $45K · Aug 2026
- 1120 Ogilby Rd$207K4 bd · 2 ba · 1,290 ft² · Sold $209K · Jul 2026
- 605 Garver Ave$81K0.16 ac · Sold $45K · Jul 2026
- 1121 Preston St$107K3 bd · 1 ba · 1,292 ft² · Sold $102K · Jul 2026
- 605 Garver Ave$50K1 bd · 1 ba · 752 ft² · Sold $45K · Jul 2026
- 2018 Chestnut St$74K3 bd · 1 ba · 1,176 ft² · Sold $51K · Jul 2026
- 3602 Crowley St$80K2 bd · 1 ba · 1,539 ft² · Sold $64K · Jul 2026
- 7214 S Main St3 bd · 2 ba · 2,381 ft² · Sold $330K · Jul 2026
- 4850 Fielding Rd$235K3 bd · 1 ba · 2,049 ft² · Sold $252K · Jul 2026
- 36xx Crowley St$79K0.41 ac · Sold $64K · Jul 2026
Explore the area
See this home in context
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