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Single Family ResidentialResidential
$183,663
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 74How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

406 CONGRESS ST

OTTAWA, IL 61350
0
Baths
2,178 ft²
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.

Valuation

$184K
$136K low$231K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$612 (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.$6,098 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,932
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,166
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$5,526
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$18,294

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.35
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
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.
67
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
28
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.0.05
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
Ottawa Township High SchoolD
High · Grades 9–12 · 0.2 mi
E
Jefferson Elementary SchoolC+
Elementary · Grades KG–4 · 0.8 mi
M
Shepherd Middle SchoolC-
Middle · Grades 7–8 · 1.7 mi

District: Ottawa Elementary School District 141

Neighborhood · ZIP 61350These 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.114
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.46

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.23,673
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.158 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,547
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$84,853
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

406 Congress 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.

  • Among the smallest lots in LaSalle County

What homes are worth in Ottawa 61350

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

This home
$75K$560K

This home is worth more than 44% of homes in Ottawa 61350.

How it measures up in Ottawa 61350

The dot is this home. The mark in the middle is the typical home in Ottawa 61350.

Estimated value$183,663
CheaperTypical $196,056Pricier

Pricier than 44% of homes nearby

Lot size2,178 ft²
SmallerTypical 0.19 acBigger

Bigger than 2% of homes nearby

Year built1952
OlderTypical 1954Newer

Newer than 49% of homes nearby

How 406 Congress St ranks against every home in each area.
MeasureThis homeOttawa 61350LaSalle County
Estimated valuepricier than$183,66344% of homes54% of homes
Lot sizebigger than2,178 ft²2% of homesalmost no homes
Year builtnewer than195249% of homes50% of homes

About 406 Congress St

How much is 406 Congress St, Ottawa, IL worth?

The TopHap Estimate for 406 Congress St, Ottawa, IL is $183,663 as of Oct 21, 2026. The likely range is $136,271 to $231,055. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 406 Congress St, Ottawa, IL last sell?

406 Congress St, Ottawa, IL last sold on Jan 1, 1900, according to the county's recorded deed.

When was 406 Congress St, Ottawa, IL built?

406 Congress St, Ottawa, IL was built in 1952, making it 74 years old.

What schools serve 406 Congress St, Ottawa, IL?

406 Congress St, Ottawa, IL is assigned to Ottawa Township High School (high), rated D; Jefferson Elementary School (elementary), rated C+; Shepherd Middle School (middle), rated C-. All sit in Ottawa Elementary School District 141. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 406 Congress St, Ottawa, IL compare to other homes in Ottawa 61350?

Among the 8,886 homes in Ottawa 61350, it is worth more than 44% of them ($183,663 against a typical $196,056), its lot is bigger than 2% of them (2,178 ft² against a typical 0.19 ac) and it is newer than 49% of them (1952 against a typical 1954). Measured against all of LaSalle County, it is worth more than 54% 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 406 Congress St, Ottawa, IL?

The 2025 property tax bill for 406 Congress St, Ottawa, IL was $612. The county assessed it at $6,098.

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Assigned schools

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