Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$94,732$101 / 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 83How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

421 WALNUT ST

ADAIR, IL 61411
2
Beds
0
Baths
936 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.
0.58 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$95K
$79K low$111K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$543 (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.$29,649 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,380
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$24,269
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$27,785
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$88,947

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMCDONOUGH
Lot (acres)The size of the land the home sits on, from county records.0.58
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Lincoln School
Elementary · Grades KG–3 · 8.7 mi
H
Macomb Senior High SchoolD+
High · Grades 9–12 · 9.3 mi
M
Macomb Junior High SchoolC+
Middle · Grades 7–8 · 9.3 mi

District: Macomb Community Unit School District 185

Neighborhood · ZIP 61411These 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.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.70
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.30

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.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
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.358
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,724
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,569
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

Owner Tools

Do you own this home?
Claim this home

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

421 Walnut 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.

  • Costs more per square foot than 77% of homes in Adair 61411
  • Smaller than 76% of homes in McDonough County
  • Has a bigger lot than 75% of homes in McDonough County

What homes are worth in Adair 61411

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

This home
$34K$309K

This home is worth more than 49% of homes in Adair 61411.

How it measures up in Adair 61411

The dot is this home. The mark in the middle is the typical home in Adair 61411.

Estimated value$94,732
CheaperTypical $96,010Pricier

Pricier than 49% of homes nearby

Price per ft²$101
CheaperTypical $83Pricier

Pricier than 77% of homes nearby

Living area936 ft²
SmallerTypical 1,116 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.58 ac
SmallerTypical 0.39 acBigger

Bigger than 57% of homes nearby

Year built1930
OlderTypical 1925Newer

Newer than 61% of homes nearby

How 421 Walnut St ranks against every home in each area.
MeasureThis homeAdair 61411McDonough County
Estimated valuepricier than$94,73249% of homes56% of homes
Price per ft²pricier than$10177% of homes73% of homes
Living areabigger than936 ft²32% of homes24% of homes
Lot sizebigger than0.58 ac57% of homes75% of homes
Year builtnewer than193061% of homes39% of homes

About 421 Walnut St

How much is 421 Walnut St, Adair, IL worth?

The TopHap Estimate for 421 Walnut St, Adair, IL is $94,732 as of Aug 30, 2026. The likely range is $78,528 to $110,936. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Walnut St, Adair, IL last sell?

421 Walnut St, Adair, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 421 Walnut St, Adair, IL?

421 Walnut St, Adair, IL has 2 bedrooms, 936 square feet of living space and a 0.58-acre lot.

When was 421 Walnut St, Adair, IL built?

421 Walnut St, Adair, IL was built in 1930, making it 96 years old. The building has 1 story.

What schools serve 421 Walnut St, Adair, IL?

421 Walnut St, Adair, IL is assigned to Lincoln School (elementary); Macomb Senior High School (high), rated D+; Macomb Junior High School (middle), rated C+. All sit in Macomb Community Unit School District 185. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Walnut St, Adair, IL compare to other homes in Adair 61411?

Among the 148 homes in Adair 61411, it is worth more than 49% of them ($94,732 against a typical $96,010), its price per square foot is higher than 77% of them ($101 against a typical $83), it is bigger than 32% of them (936 ft² against a typical 1,116 ft²), its lot is bigger than 57% of them (0.58 ac against a typical 0.39 ac) and it is newer than 61% of them (1930 against a typical 1925). Measured against all of McDonough County, it is worth more than 56% 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 421 Walnut St, Adair, IL?

The 2025 property tax bill for 421 Walnut St, Adair, IL was $543. The county assessed it at $29,649.

More homes on Walnut St

Closest homes

More homes in Adair 61411

Assigned schools

Explore the area

See this home in context

Open 421 Walnut St 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