Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$189,870$102 / 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

3921 JULIA LN

ROCKFORD, IL 61101
3
Beds
1.5
Baths
1,853 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
1963
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
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

$190K
$169K low$211K 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.$189,870
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$151,896

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,233 (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.$56,314 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,438
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$52,876
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$50,537
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$168,942

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.Ranch
CountyWINNEBAGO
Lot (acres)The size of the land the home sits on, from county records.0.46
ConstructionThe main material the home's frame and walls are built from.Brick
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 · 189 ft²

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

E
West View Elementary SchoolB-
Elementary · Grades KG–5 · 1.5 mi
M
West Middle SchoolD
Middle · Grades 6–8 · 1.9 mi
H
Auburn High SchoolD-
High · Grades 9–12 · 2.4 mi

District: Rockford School District 205

Neighborhood · ZIP 61101These 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.131
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.9.7%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.30%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.19,188
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.457 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$50,496
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$62,438
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.35 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.No

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

3921 Julia 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 86% of homes in Northwest United
  • Costs more per square foot than 77% of homes in Rockford 61101
  • Bigger than 85% of homes in Rockford 61101
  • Has a bigger lot than 92% of homes in Northwest United
  • Newer than 81% of homes in Rockford 61101

What homes are worth in Rockford 61101

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

This home
$50K$331K

This home is worth more than 83% of homes in Rockford 61101.

How it measures up in Rockford 61101

The dot is this home. The mark in the middle is the typical home in Rockford 61101.

Estimated value$189,870
CheaperTypical $100,182Pricier

Pricier than 83% of homes nearby

Price per ft²$102
CheaperTypical $81Pricier

Pricier than 77% of homes nearby

Living area1,853 ft²
SmallerTypical 1,320 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.46 ac
SmallerTypical 0.18 acBigger

Bigger than 79% of homes nearby

Year built1963
OlderTypical 1950Newer

Newer than 81% of homes nearby

How 3921 Julia Ln ranks against every home in each area.
MeasureThis homeNorthwest UnitedRockford 61101Winnebago County
Estimated valuepricier than$189,87086% of homes83% of homes46% of homes
Price per ft²pricier than$10267% of homes77% of homes35% of homes
Living areabigger than1,853 ft²79% of homes85% of homes66% of homes
Lot sizebigger than0.46 ac92% of homes79% of homes73% of homes
Year builtnewer than196377% of homes81% of homes48% of homes

About 3921 Julia Ln

How much is 3921 Julia Ln, Rockford, IL worth?

The TopHap Estimate for 3921 Julia Ln, Rockford, IL is $189,870 as of Jul 14, 2026. The likely range is $169,181 to $210,559. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3921 Julia Ln, Rockford, IL last sell?

3921 Julia Ln, Rockford, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3921 Julia Ln, Rockford, IL?

3921 Julia Ln, Rockford, IL has 3 bedrooms, 1.5 bathrooms, 1,853 square feet of living space and a 0.46-acre lot.

When was 3921 Julia Ln, Rockford, IL built?

3921 Julia Ln, Rockford, IL was built in 1963, making it 63 years old. It is a ranch home. The building has 1 story.

What schools serve 3921 Julia Ln, Rockford, IL?

3921 Julia Ln, Rockford, IL is assigned to West View Elementary School (elementary), rated B-; West Middle School (middle), rated D; Auburn High School (high), rated D-. All sit in Rockford School District 205. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3921 Julia Ln, Rockford, IL compare to other homes in Rockford 61101?

Among the 6,665 homes in Rockford 61101, it is worth more than 83% of them ($189,870 against a typical $100,182), its price per square foot is higher than 77% of them ($102 against a typical $81), it is bigger than 85% of them (1,853 ft² against a typical 1,320 ft²), its lot is bigger than 79% of them (0.46 ac against a typical 0.18 ac) and it is newer than 81% of them (1963 against a typical 1950). Measured against all of Winnebago County, it is worth more than 46% 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 3921 Julia Ln, Rockford, IL?

The 2025 property tax bill for 3921 Julia Ln, Rockford, IL was $3,233. The county assessed it at $56,314.

Closest homes

More homes in Rockford 61101

Assigned schools

Explore the area

See this home in context

Open 3921 Julia Ln 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