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Single Family ResidentialResidential
$169,138$121 / 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 78How 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

509 W MONMOUTH ST

ABINGDON, IL 61410
0
Baths
1,396 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1941
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$169K
$132K low$206K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,937 (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.$59,960 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,330
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$56,630
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$57,780
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$179,880

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.0.27
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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.

H
Abingdon-Avon High SchoolC-
High · Grades 9–12 · 0.5 mi
E
Avon Elementary School
Elementary · Grades PK–5 · 9.8 mi
M
Abingdon-Avon Middle SchoolB
Middle · Grades 6–8 · 9.9 mi

District: Abingdon-Avon Community Unit School District 276

Neighborhood · ZIP 61410These 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.100
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.28

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.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.3,390
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.80 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,512
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$67,459
Average tempThe average temperature here across a full year.51°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%

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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

509 W Monmouth 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 more than 91% of homes in Abingdon 61410
  • Costs more per square foot than 88% of homes in Abingdon 61410
  • Bigger than 80% of homes in Abingdon 61410

What homes are worth in Abingdon 61410

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

This home
$26K$292K

This home is worth more than 91% of homes in Abingdon 61410.

How it measures up in Abingdon 61410

The dot is this home. The mark in the middle is the typical home in Abingdon 61410.

Estimated value$169,138
CheaperTypical $78,415Pricier

Pricier than 91% of homes nearby

Price per ft²$121
CheaperTypical $71Pricier

Pricier than 88% of homes nearby

Living area1,396 ft²
SmallerTypical 1,064 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.27 ac
SmallerTypical 0.25 acBigger

Bigger than 62% of homes nearby

Year built1941
OlderTypical 1948Newer

Newer than 48% of homes nearby

How 509 W Monmouth St ranks against every home in each area.
MeasureThis homeAbingdon 61410Knox County
Estimated valuepricier than$169,13891% of homes74% of homes
Price per ft²pricier than$12188% of homes66% of homes
Living areabigger than1,396 ft²80% of homes77% of homes
Lot sizebigger than0.27 ac62% of homes44% of homes
Year builtnewer than194148% of homes49% of homes

About 509 W Monmouth St

How much is 509 W Monmouth St, Abingdon, IL worth?

The TopHap Estimate for 509 W Monmouth St, Abingdon, IL is $169,138 as of Aug 30, 2026. The likely range is $132,127 to $206,149. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 W Monmouth St, Abingdon, IL last sell?

509 W Monmouth St, Abingdon, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 509 W Monmouth St, Abingdon, IL?

509 W Monmouth St, Abingdon, IL has 1,396 square feet of living space and a 0.27-acre lot.

When was 509 W Monmouth St, Abingdon, IL built?

509 W Monmouth St, Abingdon, IL was built in 1941, making it 85 years old. The building has 2 stories.

What schools serve 509 W Monmouth St, Abingdon, IL?

509 W Monmouth St, Abingdon, IL is assigned to Abingdon-Avon High School (high), rated C-; Avon Elementary School (elementary); Abingdon-Avon Middle School (middle), rated B. All sit in Abingdon-Avon Community Unit School District 276. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 W Monmouth St, Abingdon, IL compare to other homes in Abingdon 61410?

Among the 1,550 homes in Abingdon 61410, it is worth more than 91% of them ($169,138 against a typical $78,415), its price per square foot is higher than 88% of them ($121 against a typical $71), it is bigger than 80% of them (1,396 ft² against a typical 1,064 ft²), its lot is bigger than 62% of them (0.27 ac against a typical 0.25 ac) and it is newer than 48% of them (1941 against a typical 1948). Measured against all of Knox County, it is worth more than 74% 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 509 W Monmouth St, Abingdon, IL?

The 2025 property tax bill for 509 W Monmouth St, Abingdon, IL was $3,937. The county assessed it at $59,960.

More homes on W Monmouth St

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