The 2026 property tax bill for 496 E Deerfield Cir was $7,841, up % from the year before.
Source: Union County assessment roll, as of October 6, 2025
Property Jurisdictions
Type
Name
State
South Dakota
County
Union County
County Subdivision
Big Sioux Township
Unified School District
Dakota Valley School District 61-8 (PK - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
2026
$7,841.00 (+0.01%)
$497,170 (-)Land $66,250Building $430,920
2025
$7,840.00 (+1.15%)
$497,170Land $66,250Building $430,920
2024
$7,751.00 (-0.62%)
2023
$7,799.00 (+11.72%)
$497,170Land $66,250Building $430,920
2022
$6,981.00
Assessed value is set for property tax purposes and is not a market price estimate.
Flood
FEMA maps place 496 E Deerfield Cir in Zone X, an area of moderate flood risk, within 100 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective May 31, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone
Zone X moderate risk
500-Year Floodplain
Yes 0.2% annual chance
Nearest Special Flood Hazard Area
Zone AE, within 100 ft
Flood Insurance Requirement
Not required lenders may require it
Flood Insurance Cost
Premium on File median of 124 policies
Nearby Flood Policies
124 in force
Nearby Flood Claims
33 (2011–2024)
Claims Outside the SFHA
25 of 33
Most Recent Claim
Jun 2024 · Severe Storms, Straight-line Winds, And Flooding
Claims by Event
Severe Storms And Flooding, Jun 2019 · 2 claims
Flooding, Jul 2011 · 26 claims
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 496 E Deerfield Cir is moderate, ranking above 48% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Moderate above 48% of the US · lower than 63% of South Dakota
Wildfire Likelihood
0.1% 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
DAKOTA DUNES CID serves 3,700 people · EPA ID SD4602093
Water Source
Purchased groundwater influenced by surface water from SIOUX CITY WATER SUPPLY
Last State Inspection
Apr 2024
Lead
4 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.
Internet Providers
Source: FCC Broadband Data Collection, based on 52 locations within half a mile, as of December 31, 2025