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Single Family ResidenceResidential
$49,102
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 69How 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 $15,200 on Apr 1, 2015

830 S 18TH ST

DECATUR, IL 62521
0
Baths
0.55 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$49K
$34K low$64K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$15,200 · Apr 1, 2015

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$98 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$49
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$49
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$13,082
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$294

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
83
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
68
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMACON
Lot (acres)The size of the land the home sits on, from county records.0.55
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Eisenhower High SchoolF
High · Grades 9–12 · 0.3 mi
E
E. J. Muffley Elementary SchoolF
Elementary · Grades KG–6 · 1.4 mi
M
Stephen Decatur Middle SchoolF
Middle · Grades 7–8 · 3.7 mi

District: Decatur School District 61

Neighborhood · ZIP 62521These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.55

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.14%
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.32,847
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.522 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,684
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$82,291
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.39 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

830 S 18th 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 less than 92% of homes in Saint Mary's
  • Among the largest lots in Saint Mary's

What homes are worth in Decatur 62521

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

This home
$34K$543K

This home is worth more than 9% of homes in Decatur 62521.

How it measures up in Decatur 62521

The dot is this home. The mark in the middle is the typical home in Decatur 62521.

Estimated value$49,102
CheaperTypical $144,060Pricier

Pricier than 9% of homes nearby

Lot size0.55 ac
SmallerTypical 0.27 acBigger

Bigger than 76% of homes nearby

How 830 S 18th St ranks against every home in each area.
MeasureThis homeSaint Mary'sDecatur 62521Macon County
Estimated valuepricier than$49,1028% of homes9% of homes13% of homes
Lot sizebigger than0.55 acalmost all homes76% of homes79% of homes

About 830 S 18th St

How much is 830 S 18th St, Decatur, IL worth?

The TopHap Estimate for 830 S 18th St, Decatur, IL is $49,102 as of Sep 24, 2026. The likely range is $34,086 to $64,118. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 830 S 18th St, Decatur, IL last sell?

830 S 18th St, Decatur, IL last sold on Apr 1, 2015 for $15,200, according to the county's recorded deed.

What schools serve 830 S 18th St, Decatur, IL?

830 S 18th St, Decatur, IL is assigned to Eisenhower High School (high), rated F; E. J. Muffley Elementary School (elementary), rated F; Stephen Decatur Middle School (middle), rated F. All sit in Decatur School District 61. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 830 S 18th St, Decatur, IL compare to other homes in Decatur 62521?

Among the 14,947 homes in Decatur 62521, it is worth more than 9% of them ($49,102 against a typical $144,060) and its lot is bigger than 76% of them (0.55 ac against a typical 0.27 ac). Measured against all of Macon County, it is worth more than 13% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on S 18th St

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Assigned schools

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