The 2025 property tax bill for 230 Oak St was $2,374, up 3.9% from the year before.
Source: Calumet County assessment roll, as of May 27, 2026
Property Jurisdictions
Type
Name
State
Wisconsin
County
Calumet County
Municipality
Chilton City
Unified School District
Chilton School District (PK - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
Assessed Market Value
2025
$2,374.00 (+3.94%)
$106,000 (-)Land $12,700Building $93,300
$153,600 (+6.3%)
2024
$2,284.00 (+3.07%)Homeowner's exemption
$106,000 (-)Land $12,700Building $93,300
$144,500 (+3.48%)
2023
$2,216.00 (+3.5%)Homeowner's exemption
$106,000 (-)Land $12,700Building $93,300
$139,638 (+9.81%)Land $16,730Building $122,908
2022
$2,141.00Homeowner's exemption
$106,000Land $12,700Building $93,300
$127,165Land $15,236Building $111,929
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Flood
FEMA maps place 230 Oak St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2012.
Source: FEMA National Flood Hazard Layer, effective April 29, 2020 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone
Zone X minimal risk
Flood Insurance Requirement
Not required lenders may require it
Nearby Flood Policies
9 in force
Nearby Flood Claims
1 (2012)
Claims Outside the SFHA
1 of 1
Most Recent Claim
May 2012 · 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
Wildfire risk around 230 Oak St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Low lower than 98% of the US · lower than 94% of Wisconsin
Wildfire Likelihood
Under 0.01% annual chance
Exposure
None beyond 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
CHILTON WATERWORKS serves 4,191 people · EPA ID WI4080222
Water Source
Groundwater
Last State Inspection
Jul 2025
Lead
13 ppb (2023) action level 15 ppb
Violations Reported to EPA
Water Quality
None last 10 years
Treatment and Procedure
Lead service line inventory Oct 2024
Monitoring and Reporting
1 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 337 locations within half a mile, as of December 31, 2025
Provider
Max Down / Up (Mbps)
Spectrum Cable
1,000 / 1,000
Bertram Communications Fixed Wireless
100 / 20
T-Mobile Fixed Wireless
100 / 20
May also be available: Bug Tussel Wireless, Verizon.