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Single Family ResidenceResidential
$111,875$113 / 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

631 17TH ST

ROCKFORD, IL 61104
3
Beds
1
Baths
987 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.
1935
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

$112K
$100K low$124K 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.$111,875
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$89,500

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$741 (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.$27,417 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,121
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$17,296
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$24,605
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$82,251

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.49
84
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.
62
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.27 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

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.Bungalow
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
ViewThe type of view from the property, or another feature of the site that affects value.Alley
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 133 ft²

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

M
Lincoln Middle SchoolD
Middle · Grades 6–8 · 0.5 mi
H
East High SchoolF
High · Grades 9–12 · 0.7 mi
E
Constance Lane Elementary SchoolD-
Elementary · Grades KG–5 · 1.3 mi

District: Rockford School District 205

Neighborhood · ZIP 61104These 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.157
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.6.0%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.36%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.17,656
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,783 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$34,362
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$47,725
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.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

631 17th St 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 less than 84% of homes in Winnebago County
  • Costs more per square foot than 90% of homes in Rockford 61104
  • Smaller than 89% of homes in Keith Creek
  • Newer than 85% of homes in Rockford 61104

What homes are worth in Rockford 61104

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

This home
$49K$194K

This home is worth more than 57% of homes in Rockford 61104.

How it measures up in Rockford 61104

The dot is this home. The mark in the middle is the typical home in Rockford 61104.

Estimated value$111,875
CheaperTypical $102,544Pricier

Pricier than 57% of homes nearby

Price per ft²$113
CheaperTypical $75Pricier

Pricier than 90% of homes nearby

Living area987 ft²
SmallerTypical 1,583 ft²Bigger

Bigger than 11% of homes nearby

Year built1935
OlderTypical 1920Newer

Newer than 85% of homes nearby

How 631 17th St ranks against every home in each area.
MeasureThis homeKeith CreekRockford 61104Winnebago County
Estimated valuepricier than$111,87522% of homes57% of homes16% of homes
Price per ft²pricier than$11376% of homes90% of homes44% of homes
Living areabigger than987 ft²11% of homes11% of homes12% of homes
Year builtnewer than193566% of homes85% of homes17% of homes

About 631 17th St

How much is 631 17th St, Rockford, IL worth?

The TopHap Estimate for 631 17th St, Rockford, IL is $111,875 as of Jul 14, 2026. The likely range is $100,107 to $123,643. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 631 17th St, Rockford, IL last sell?

631 17th St, Rockford, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 631 17th St, Rockford, IL?

631 17th St, Rockford, IL has 3 bedrooms, 1 bathrooms and 987 square feet of living space.

When was 631 17th St, Rockford, IL built?

631 17th St, Rockford, IL was built in 1935, making it 91 years old. It is a bungalow home. The building has 1 story.

What schools serve 631 17th St, Rockford, IL?

631 17th St, Rockford, IL is assigned to Lincoln Middle School (middle), rated D; East High School (high), rated F; Constance Lane Elementary School (elementary), rated D-. All sit in Rockford School District 205. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 631 17th St, Rockford, IL compare to other homes in Rockford 61104?

Among the 4,606 homes in Rockford 61104, it is worth more than 57% of them ($111,875 against a typical $102,544), its price per square foot is higher than 90% of them ($113 against a typical $75), it is bigger than 11% of them (987 ft² against a typical 1,583 ft²) and it is newer than 85% of them (1935 against a typical 1920). Measured against all of Winnebago County, it is worth more than 16% 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 631 17th St, Rockford, IL?

The 2025 property tax bill for 631 17th St, Rockford, IL was $741. The county assessed it at $27,417.

More homes on 17th St

Closest homes

More homes in Rockford 61104

Assigned schools

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