The 2025 property tax bill for 817 Columbus St was $5,280, down 2.6% from the year before.
Source: LaSalle County assessment roll, as of June 29, 2026
Property Jurisdictions
Type
Name
State
Illinois
County
LaSalle County
County Subdivision
Ottawa Township
Municipality
Ottawa City
Elementary School District
Ottawa Elementary School District 141 (PK - 08)
Secondary School District
Ottawa Township High School District 140 (09 - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
Assessed Market Value
2025
$5,280.00 (-2.58%)
$52,636 (-)Land $6,436Building $46,200
$157,908 (-)Land $19,308Building $138,600
2024
$5,420.00
$52,636 (+93.1%)Land $6,436Building $46,200
$157,908 (+93.1%)Land $19,308Building $138,600
2023
$27,258 (+6%)Land $6,436Building $20,822
$81,774 (+6%)Land $19,308Building $62,466
2022
$25,715Land $6,072Building $19,643
$77,145Land $18,216Building $58,929
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
Flood
FEMA maps place 817 Columbus St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective March 29, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone
Zone X minimal risk
Nearest Special Flood Hazard Area
Zone AE, within 500 ft
Flood Insurance Requirement
Not required lenders may require it
Community Rating System
Class 2 (40% premium discount)
Nearby Flood Policies
2 in force
Nearby Flood Claims
2 (1979–1997)
Most Recent Claim
Feb 1997 · river or lake flooding
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire
The area around 817 Columbus St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Not rated no burnable land within ember reach
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Drinking Water
Source: EPA Safe Drinking Water Information System, as of September 2026
Water System
OTTAWA serves 18,097 people · EPA ID IL0990800
Water Source
Groundwater
Last State Inspection
Jul 2025
Lead
Under 1 ppb (2026–2028) action level 15 ppb
Violations Reported to EPA
Water Quality
Radium resolved · Jul 2023
Treatment and Procedure
None last 10 years
Monitoring and Reporting
5 last 3 years
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.
Internet Providers
Source: FCC Broadband Data Collection, based on 272 locations within half a mile, as of December 31, 2025