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Single Family ResidentialResidential
$218,539$140 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $249,000 on Jun 30, 2021

4520 27TH AVE

ROCK ISLAND, IL 61201
2
Beds
1.5
Baths
1,563 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.
0.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$219K
$197K low$240K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$249,000 · Jun 30, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,474 (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.$90,685 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,163
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$68,522
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$83,581
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$272,055

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
CountyROCK ISLAND
Lot (acres)The size of the land the home sits on, from county records.0.36
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
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
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

Transaction History(2)

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
Denkmann Elementary SchoolB
Elementary · Grades KG–6 · 0.6 mi
M
Washington Jr High SchoolC
Middle · Grades 7–8 · 1.1 mi
H
Rock Island High SchoolD-
High · Grades 9–12 · 2.1 mi

District: Rock Island School District 41

Neighborhood · ZIP 61201These 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.114
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
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.36,706
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,955 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,990
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$78,271
Average tempThe average temperature here across a full year.50°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.55%

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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

4520 27th 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.

  • Worth more than 91% of homes in 45th Street
  • Costs more per square foot than 84% of homes in Rock Island 61201
  • Bigger than 83% of homes in 45th Street
  • Has a bigger lot than 94% of homes in 45th Street
  • Newer than 80% of homes in Rock Island 61201

What homes are worth in Rock Island 61201

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

This home
$34K$349K

This home is worth more than 90% of homes in Rock Island 61201.

How it measures up in Rock Island 61201

The dot is this home. The mark in the middle is the typical home in Rock Island 61201.

Estimated value$218,539
CheaperTypical $122,514Pricier

Pricier than 90% of homes nearby

Price per ft²$140
CheaperTypical $99Pricier

Pricier than 84% of homes nearby

Living area1,563 ft²
SmallerTypical 1,252 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.36 ac
SmallerTypical 0.16 acBigger

Bigger than 86% of homes nearby

Year built1960
OlderTypical 1940Newer

Newer than 80% of homes nearby

How 4520 27th Ave ranks against every home in each area.
MeasureThis home45th StreetRock Island 61201Rock Island County
Estimated valuepricier than$218,53991% of homes90% of homes75% of homes
Price per ft²pricier than$14073% of homes84% of homes65% of homes
Living areabigger than1,563 ft²83% of homes71% of homes69% of homes
Lot sizebigger than0.36 ac94% of homes86% of homes72% of homes
Year builtnewer than196070% of homes80% of homes61% of homes

About 4520 27th Ave

How much is 4520 27th Ave, Rock Island, IL worth?

The TopHap Estimate for 4520 27th Ave, Rock Island, IL is $218,539 as of Sep 24, 2026. The likely range is $197,321 to $239,757. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4520 27th Ave, Rock Island, IL last sell?

4520 27th Ave, Rock Island, IL last sold on Jun 30, 2021 for $249,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4520 27th Ave, Rock Island, IL?

4520 27th Ave, Rock Island, IL has 2 bedrooms, 1.5 bathrooms, 1,563 square feet of living space and a 0.36-acre lot.

When was 4520 27th Ave, Rock Island, IL built?

4520 27th Ave, Rock Island, IL was built in 1960, making it 66 years old. The building has 1 story.

What schools serve 4520 27th Ave, Rock Island, IL?

4520 27th Ave, Rock Island, IL is assigned to Denkmann Elementary School (elementary), rated B; Washington Jr High School (middle), rated C; Rock Island High School (high), rated D-. All sit in Rock Island School District 41. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4520 27th Ave, Rock Island, IL compare to other homes in Rock Island 61201?

Among the 13,020 homes in Rock Island 61201, it is worth more than 90% of them ($218,539 against a typical $122,514), its price per square foot is higher than 84% of them ($140 against a typical $99), it is bigger than 71% of them (1,563 ft² against a typical 1,252 ft²), its lot is bigger than 86% of them (0.36 ac against a typical 0.16 ac) and it is newer than 80% of them (1960 against a typical 1940). Measured against all of Rock Island County, it is worth more than 75% 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 4520 27th Ave, Rock Island, IL?

The 2025 property tax bill for 4520 27th Ave, Rock Island, IL was $8,474. The county assessed it at $90,685.

More homes on 27th Ave

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