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Single Family ResidentialResidential
$104,341
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 64How 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

306 SW SPRING

IROQUOIS, IL 60945
0
Baths
1.41 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$104K
$66K low$142K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,609 (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.$37,610 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$18,510
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$34,660
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$112,830

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.51%
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.1 percent flood zone

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
CountyIROQUOIS
Lot (acres)The size of the land the home sits on, from county records.1.41
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
Donovan Sr High School
High · Grades 9–12 · 4.4 mi
M
Donovan Jr High SchoolA
Middle · Grades 6–8 · 4.4 mi
E
Donovan Elementary SchoolA-
Elementary · Grades PK–5 · 5.4 mi

District: Donovan Community Unit School District 3

Neighborhood · ZIP 60945These 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.147
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.9%
PopulationHow many people live in this area.1
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.14 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,484
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$72,731
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.38 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

306 Sw Spring 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 75% of homes in Iroquois County

What homes are worth in Iroquois County

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

This home
$25K$171K

This home is worth more than 75% of homes in Iroquois County.

How it measures up in Iroquois County

The dot is this home. The mark in the middle is the typical home in Iroquois County.

Estimated value$104,341
CheaperTypical $135,881Pricier

Pricier than 37% of homes nearby

Lot size1.41 ac
SmallerTypical 0.37 acBigger

Bigger than 75% of homes nearby

How 306 Sw Spring ranks against every home in each area.
MeasureThis homeIroquois County
Estimated valuepricier than$104,34137% of homes
Lot sizebigger than1.41 ac75% of homes

About 306 Sw Spring

How much is 306 Sw Spring, Iroquois, IL worth?

The TopHap Estimate for 306 Sw Spring, Iroquois, IL is $104,341 as of Sep 24, 2026. The likely range is $66,407 to $142,275. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 306 Sw Spring, Iroquois, IL last sell?

306 Sw Spring, Iroquois, IL last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 306 Sw Spring, Iroquois, IL?

306 Sw Spring, Iroquois, IL is assigned to Donovan Sr High School (high); Donovan Jr High School (middle), rated A; Donovan Elementary School (elementary), rated A-. All sit in Donovan Community Unit School District 3. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 306 Sw Spring, Iroquois, IL compare to other homes in Iroquois County?

Among the 11,761 homes in Iroquois County, it is worth more than 37% of them ($104,341 against a typical $135,881) and its lot is bigger than 75% of them (1.41 ac against a typical 0.37 ac). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 306 Sw Spring, Iroquois, IL?

The 2025 property tax bill for 306 Sw Spring, Iroquois, IL was $2,609. The county assessed it at $37,610.

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Assigned schools

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