The 2025 property tax bill for 417 N Johnson Ave was $2,466, up 0.9% from the year before.
Source: Jefferson County assessment roll, as of July 14, 2026
Property Jurisdictions
Type
Name
State
Illinois
County
Jefferson County
County Subdivision
Mount Vernon Township
Municipality
Mount Vernon City
Elementary School District
Mount Vernon School District 80 (PK - 08)
Secondary School District
Mount Vernon Township High School District 201 (09 - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
Assessed Market Value
2025
$2,466.00 (+0.86%)
$30,415Land $5,646Building $24,769
$91,245Land $16,938Building $74,307
2024
$2,445.00
2022
$22,805Land $4,233Building $18,572
$68,415Land $12,699Building $55,716
2021
$2,111.00
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Flood
FEMA maps place 417 N Johnson Ave 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 September 17, 2010 · 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
Nearby Flood Policies
3 in force
Nearby Flood Claims
8 (1999–2018)
Most Recent Claim
Sep 2018 · rainfall accumulation
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 417 N Johnson Ave 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
NORTHEAST MOUNT VERNON WATER COMPANY private · serves 5,483 people · EPA ID IL0810010
Water Source
Purchased surface water from MOUNT VERNON
Last State Inspection
May 2023
Lead
6 ppb (2025) action level 15 ppb
Violations Reported to EPA
Water Quality
None last 10 years
Treatment and Procedure
None last 10 years
Monitoring and Reporting
None 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 357 locations within half a mile, as of December 31, 2025