Union County property record for 33079 478th Ave, Jefferson, SD 57038
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,056 sqft · built 1917 |
| Lot Size | 3.26 acres (142,006 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,212 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 14.00.60.4040 |
| Primary APN | 14.00.60.4040 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,056 sqft Living Area |
| Year Built | Built 1917 |
|---|---|
| Effective Year Built | Effective 1917 |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 142,006 sqft (3.26 acres) |
| Garage Type | Detached |
| Garage Area | 192 sqft |
| Porch | Porch |
| Cooling System | None |
|---|---|
| Heating System | Central |
| Street Address | 33079 478TH AVE |
|---|---|
| City | JEFFERSON |
| State | SD |
| Zip | 57038-6817 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | ROSENBAUM TR 1 IN SE1/4SE1/4 (3.03A) |
| Legal Range | 49W |
| Legal Township | 90N |
| Legal Section | 20 |
| Legal Tract | 1 |
| Legal Unit | 1 |
| Jurisdiction | UNION SD |
| Township / Civil Division | CIVIL BEND |
| Census Block Group | 1 |
| Census Block | 1051 |
| Census Tract | 20302 |
Source: Union County records · APN 14.00.60.4040
Assessment roll updated October 6, 2025 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 33079 478TH AVE, JEFFERSON, SD 57038-6817 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Jun 08, 2026 |
Source: Union County records · Assessment roll updated October 6, 2025 · Last verified April 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Union County |
| County Subdivision | Civil Bend Township |
| Unified School District | Elk Point-Jefferson School District 61-7 (PK - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $1,212.00 (+1.25%) | $110,962 (+24.7%) Land $63,151 Building $47,811 |
| 2024 | $1,197.00 (+18.75%) | |
| 2023 | $1,008.00 (+24.29%) | $88,982 Land $45,108 Building $43,874 |
| 2022 | $811.00 |
Source: FEMA National Flood Hazard Layer as of May 31, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 5 (2014–2024) |
| Claims Outside the SFHA | 2 of 5 |
| Most Recent Claim | Jun 2024 · Severe Storms, Straight-line Winds, And Flooding |
| Claims by Event |
|
| Wildfire Risk | Low lower than 94% of the US · lower than 90% of South Dakota |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Long Lines Fiber | 1,500 / 1,500 |
| Midcontinent Communications Fixed Wireless | 100 / 20 |
Based on FCC filings for 6 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CLAY RWS/SOUTH UNION private · serves 1,447 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Apr 2024 |
| Lead | 1 ppb (2025) action level 15 ppb |
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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