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Single Family ResidenceResidential
$260,206
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 97How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $361,500 on Jun 24, 2026

21870 W LAKE AVE

ROUND LAKE, IL 60073
0
Baths
4,308 ft²
Lot SizeThe size of the land the home sits on, from county records.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$260K
$251K low$269K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$361,500 · Jun 24, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,962 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$21,111 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,292
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$11,819
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$63,340

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLAKE
Lot (acres)The size of the land the home sits on, from county records.0.10
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(3)

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.

H
Grayslake North High SchoolB-
High · Grades 9–12 · 0.9 mi
E
Prairieview SchoolA-
Elementary · Grades KG–4 · 1.4 mi
M
Grayslake Middle SchoolC+
Middle · Grades 7–8 · 1.6 mi

District: Grayslake Consolidated Community School District 46

Neighborhood · ZIP 60073These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.44

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.55,828
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,687 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,400
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$103,944
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.54%

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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

21870 W Lake 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 less than 78% of homes in Lake County
  • Has a smaller lot than 86% of homes in Lake County

What homes are worth in Round Lake 60073

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

This home
$137K$541K

This home is worth more than 45% of homes in Round Lake 60073.

How it measures up in Round Lake 60073

The dot is this home. The mark in the middle is the typical home in Round Lake 60073.

Estimated value$260,206
CheaperTypical $274,013Pricier

Pricier than 45% of homes nearby

Lot size4,308 ft²
SmallerTypical 0.14 acBigger

Bigger than 18% of homes nearby

How 21870 W Lake Ave ranks against every home in each area.
MeasureThis homeRound Lake 60073Lake County
Estimated valuepricier than$260,20645% of homes22% of homes
Lot sizebigger than4,308 ft²18% of homes14% of homes

About 21870 W Lake Ave

How much is 21870 W Lake Ave, Round Lake, IL worth?

The TopHap Estimate for 21870 W Lake Ave, Round Lake, IL is $260,206 as of Oct 21, 2026. The likely range is $251,407 to $269,005. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21870 W Lake Ave, Round Lake, IL last sell?

21870 W Lake Ave, Round Lake, IL last sold on Jun 24, 2026 for $361,500, according to the county's recorded deed.

What schools serve 21870 W Lake Ave, Round Lake, IL?

21870 W Lake Ave, Round Lake, IL is assigned to Grayslake North High School (high), rated B-; Prairieview School (elementary), rated A-; Grayslake Middle School (middle), rated C+. All sit in Grayslake Consolidated Community School District 46. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21870 W Lake Ave, Round Lake, IL compare to other homes in Round Lake 60073?

Among the 19,179 homes in Round Lake 60073, it is worth more than 45% of them ($260,206 against a typical $274,013) and its lot is bigger than 18% of them (4,308 ft² against a typical 0.14 ac). Measured against all of Lake County, it is worth more than 22% 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 21870 W Lake Ave, Round Lake, IL?

The 2024 property tax bill for 21870 W Lake Ave, Round Lake, IL was $1,962. The county assessed it at $21,111.

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