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Duplex (2 Units, Any Combination)Residential
Last sold for $27,500 on Mar 29, 2021

511 N AVON ST

ROCKFORD, IL 61101
4
Beds
2
Baths
2,350 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$27,500 · Mar 29, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,810 (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.$20,501 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$808
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,693
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$16,461
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$61,503

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.37
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
65
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.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
CountyWINNEBAGO
Lot (acres)The size of the land the home sits on, from county records.0.17
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
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 · 266 ft²

Transaction History(7)

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.

E
Lewis Lemon Elementary SchoolD-
Elementary · Grades KG–5 · 0.7 mi
M
Kennedy Middle SchoolD-
Middle · Grades 6–8 · 1.6 mi
H
Auburn High SchoolD-
High · Grades 9–12 · 1.7 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.Absentee owner
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

511 N Avon 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.

  • Bigger than 97% of homes in West Gateway Coalition
  • Has a smaller lot than 84% of homes in Winnebago County
  • Older than 96% of homes in Winnebago County

How it measures up in Rockford 61101

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

Living area2,350 ft²
SmallerTypical 1,312 ft²Bigger

Bigger than 94% of homes nearby

Lot size0.17 ac
SmallerTypical 0.19 acBigger

Bigger than 41% of homes nearby

Year built1900
OlderTypical 1950Newer

Newer than 9% of homes nearby

How 511 N Avon St ranks against every home in each area.
MeasureThis homeWest Gateway CoalitionRockford 61101Winnebago County
Living areabigger than2,350 ft²97% of homes94% of homes82% of homes
Lot sizebigger than0.17 ac58% of homes41% of homes16% of homes
Year builtnewer than190018% of homes9% of homes4% of homes

About 511 N Avon St

When did 511 N Avon St, Rockford, IL last sell?

511 N Avon St, Rockford, IL last sold on Mar 29, 2021 for $27,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 511 N Avon St, Rockford, IL?

511 N Avon St, Rockford, IL has 4 bedrooms, 2 bathrooms, 2,350 square feet of living space and a 0.17-acre lot.

When was 511 N Avon St, Rockford, IL built?

511 N Avon St, Rockford, IL was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 511 N Avon St, Rockford, IL?

511 N Avon St, Rockford, IL is assigned to Lewis Lemon Elementary School (elementary), rated D-; Kennedy 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 511 N Avon St, Rockford, IL compare to other homes in Rockford 61101?

Among the 6,665 homes in Rockford 61101, it is bigger than 94% of them (2,350 ft² against a typical 1,312 ft²), its lot is bigger than 41% of them (0.17 ac against a typical 0.19 ac) and it is newer than 9% of them (1900 against a typical 1950). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 511 N Avon St, Rockford, IL?

The 2025 property tax bill for 511 N Avon St, Rockford, IL was $1,810. The county assessed it at $20,501.

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