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Rural ResidenceResidential
$121,010
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 Sep 24, 2026
Last sold for $286,200 on Apr 21, 2023

18639 UNION RD

FLAT ROCK, IL 62427
0
Baths
24 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$121K
$101K low$141K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$286,200 · Apr 21, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,432 (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.$31,441 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,054
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$21,387
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$28,527

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.45 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
CountyLawrence
Lot (acres)The size of the land the home sits on, from county records.24.00

Transaction History(1)

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.

M
Parkview Jr High SchoolC-
Middle · Grades 6–8 · 10.4 mi
H
Lawrenceville High SchoolD
High · Grades 9–12 · 10.6 mi
E
Parkside Elementary SchoolC+
Elementary · Grades PK–5 · 10.6 mi

District: Lawrence County Community Unit District 20

Neighborhood · ZIP 62427These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.140

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.7%
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.1.4%
PopulationHow many people live in this area.2,167
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.17 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,613
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,440
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

18639 Union Rd 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.

  • Has a bigger lot than 92% of homes in Lawrence County

What homes are worth in Flat Rock 62427

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

This home
$45K$281K

This home is worth more than 53% of homes in Flat Rock 62427.

How it measures up in Flat Rock 62427

The dot is this home. The mark in the middle is the typical home in Flat Rock 62427.

Estimated value$121,010
CheaperTypical $119,779Pricier

Pricier than 53% of homes nearby

Lot size24 ac
SmallerTypical 4 acBigger

Bigger than 82% of homes nearby

How 18639 Union Rd ranks against every home in each area.
MeasureThis homeFlat Rock 62427Lawrence County
Estimated valuepricier than$121,01053% of homes56% of homes
Lot sizebigger than24 ac82% of homes92% of homes

About 18639 Union Rd

How much is 18639 Union Rd, Flat Rock, IL worth?

The TopHap Estimate for 18639 Union Rd, Flat Rock, IL is $121,010 as of Sep 24, 2026. The likely range is $100,865 to $141,155. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18639 Union Rd, Flat Rock, IL last sell?

18639 Union Rd, Flat Rock, IL last sold on Apr 21, 2023 for $286,200, according to the county's recorded deed.

What schools serve 18639 Union Rd, Flat Rock, IL?

18639 Union Rd, Flat Rock, IL is assigned to Parkview Jr High School (middle), rated C-; Lawrenceville High School (high), rated D; Parkside Elementary School (elementary), rated C+. All sit in Lawrence County Community Unit District 20. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18639 Union Rd, Flat Rock, IL compare to other homes in Flat Rock 62427?

Among the 731 homes in Flat Rock 62427, it is worth more than 53% of them ($121,010 against a typical $119,779) and its lot is bigger than 82% of them (24 ac against a typical 4 ac). Measured against all of Lawrence 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 18639 Union Rd, Flat Rock, IL?

The 2024 property tax bill for 18639 Union Rd, Flat Rock, IL was $1,432. The county assessed it at $31,441.

More homes on Union Rd

Closest homes

More homes in Flat Rock 62427

Assigned schools

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