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Residential (General/Single)Residential
$549,852$301 / 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 93How 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

621 S 4TH ST

SAINT CHARLES, IL 60174
3
Beds
1
Baths
1,827 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.
0.41 ac
Lot SizeThe size of the land the home sits on, from county records.
1923
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$550K
$510K low$589K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,137 (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.$144,542 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$50,521
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$94,021
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$133,181
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$433,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyKANE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1969
Lot (acres)The size of the land the home sits on, from county records.0.41
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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.Yes

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.

M
Thompson Middle SchoolA-
Middle · Grades 6–8 · 0.4 mi
E
Davis Elementary SchoolA
Elementary · Grades KG–5 · 0.4 mi
H
St. Charles East High SchoolB
High · Grades 9–12 · 2.3 mi

District: St. Charles Community Unit School District 303

Neighborhood · ZIP 60174These 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.110
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
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.30,798
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,043 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,802
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,882
Average tempThe average temperature here across a full year.48°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.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

621 S 4th 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 81% of homes in Kane County
  • Costs more per square foot than 93% of homes in Kane County
  • Has a bigger lot than 78% of homes in Kane County
  • Older than 93% of homes in Saint Charles 60174

What homes are worth in Saint Charles 60174

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

This home
$238K$1.1M

This home is worth more than 71% of homes in Saint Charles 60174.

How it measures up in Saint Charles 60174

The dot is this home. The mark in the middle is the typical home in Saint Charles 60174.

Estimated value$549,852
CheaperTypical $443,078Pricier

Pricier than 71% of homes nearby

Price per ft²$301
CheaperTypical $256Pricier

Pricier than 73% of homes nearby

Living area1,827 ft²
SmallerTypical 1,728 ft²Bigger

Bigger than 56% of homes nearby

Lot size0.41 ac
SmallerTypical 0.24 acBigger

Bigger than 76% of homes nearby

Year built1923
OlderTypical 1977Newer

Newer than 7% of homes nearby

How 621 S 4th St ranks against every home in each area.
MeasureThis homeSaint Charles 60174Kane County
Estimated valuepricier than$549,85271% of homes81% of homes
Price per ft²pricier than$30173% of homes93% of homes
Living areabigger than1,827 ft²56% of homes55% of homes
Lot sizebigger than0.41 ac76% of homes78% of homes
Year builtnewer than19237% of homes12% of homes

About 621 S 4th St

How much is 621 S 4th St, Saint Charles, IL worth?

The TopHap Estimate for 621 S 4th St, Saint Charles, IL is $549,852 as of Aug 30, 2026. The likely range is $510,385 to $589,319. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 621 S 4th St, Saint Charles, IL last sell?

621 S 4th St, Saint Charles, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 621 S 4th St, Saint Charles, IL?

621 S 4th St, Saint Charles, IL has 3 bedrooms, 1 bathrooms, 1,827 square feet of living space and a 0.41-acre lot.

When was 621 S 4th St, Saint Charles, IL built?

621 S 4th St, Saint Charles, IL was built in 1923, making it 103 years old. The building has 1 story.

What schools serve 621 S 4th St, Saint Charles, IL?

621 S 4th St, Saint Charles, IL is assigned to Thompson Middle School (middle), rated A-; Davis Elementary School (elementary), rated A; St. Charles East High School (high), rated B. All sit in St. Charles Community Unit School District 303. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 621 S 4th St, Saint Charles, IL compare to other homes in Saint Charles 60174?

Among the 10,184 homes in Saint Charles 60174, it is worth more than 71% of them ($549,852 against a typical $443,078), its price per square foot is higher than 73% of them ($301 against a typical $256), it is bigger than 56% of them (1,827 ft² against a typical 1,728 ft²), its lot is bigger than 76% of them (0.41 ac against a typical 0.24 ac) and it is newer than 7% of them (1923 against a typical 1977). Measured against all of Kane County, it is worth more than 81% 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 621 S 4th St, Saint Charles, IL?

The 2025 property tax bill for 621 S 4th St, Saint Charles, IL was $10,137. The county assessed it at $144,542.

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