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Single Family ResidentialResidential
$114,879$96 / 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 68How 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

503 S 1ST ST

TONICA, IL 61370
0
Baths
1,192 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.
0.62 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$115K
$78K low$152K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,484 (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.$50,784 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,402
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$41,382
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$49,218
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$152,352

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.34
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
73
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
59
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
24
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 Residential
CountyLASALLE
Lot (acres)The size of the land the home sits on, from county records.0.62
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
Tonica Grade SchoolC
Elementary · Grades PK–8 · 0.7 mi
H
La Salle-Peru Township High SchoolB+
High · Grades 9–12 · 8.7 mi

District: Tonica Community Consolidated School District 79

Neighborhood · ZIP 61370These 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.133
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.42

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.9.6%
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.2.0%
PopulationHow many people live in this area.1,203
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.21 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$78,323
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,225
Average tempThe average temperature here across a full year.50°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.55%

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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

503 S 1st 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 82% of homes in Tonica 61370
  • Costs less per square foot than 74% of homes in LaSalle County
  • Smaller than 74% of homes in Tonica 61370
  • Has a bigger lot than 81% of homes in LaSalle County

What homes are worth in Tonica 61370

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

This home
$58K$425K

This home is worth more than 18% of homes in Tonica 61370.

How it measures up in Tonica 61370

The dot is this home. The mark in the middle is the typical home in Tonica 61370.

Estimated value$114,879
CheaperTypical $174,251Pricier

Pricier than 18% of homes nearby

Price per ft²$96
CheaperTypical $123Pricier

Pricier than 28% of homes nearby

Living area1,192 ft²
SmallerTypical 1,482 ft²Bigger

Bigger than 26% of homes nearby

Lot size0.62 ac
SmallerTypical 0.44 acBigger

Bigger than 58% of homes nearby

How 503 S 1st St ranks against every home in each area.
MeasureThis homeTonica 61370LaSalle County
Estimated valuepricier than$114,87918% of homes23% of homes
Price per ft²pricier than$9628% of homes26% of homes
Living areabigger than1,192 ft²26% of homes35% of homes
Lot sizebigger than0.62 ac58% of homes81% of homes

About 503 S 1st St

How much is 503 S 1st St, Tonica, IL worth?

The TopHap Estimate for 503 S 1st St, Tonica, IL is $114,879 as of Sep 24, 2026. The likely range is $77,643 to $152,115. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 503 S 1st St, Tonica, IL last sell?

503 S 1st St, Tonica, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 503 S 1st St, Tonica, IL?

503 S 1st St, Tonica, IL has 1,192 square feet of living space and a 0.62-acre lot.

What schools serve 503 S 1st St, Tonica, IL?

503 S 1st St, Tonica, IL is assigned to Tonica Grade School (elementary), rated C; La Salle-Peru Township High School (high), rated B+. All sit in Tonica Community Consolidated School District 79. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 503 S 1st St, Tonica, IL compare to other homes in Tonica 61370?

Among the 505 homes in Tonica 61370, it is worth more than 18% of them ($114,879 against a typical $174,251), its price per square foot is higher than 28% of them ($96 against a typical $123), it is bigger than 26% of them (1,192 ft² against a typical 1,482 ft²) and its lot is bigger than 58% of them (0.62 ac against a typical 0.44 ac). Measured against all of LaSalle County, it is worth more than 23% 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 503 S 1st St, Tonica, IL?

The 2025 property tax bill for 503 S 1st St, Tonica, IL was $1,484. The county assessed it at $50,784.

More homes on S 1st St

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Assigned schools

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