Union County property record for 33051 478th Ave, Jefferson, SD 57038
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,600 sqft · built 1903 |
| Lot Size | 5.47 acres (238,273 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $1,907 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 14.00.60.4030 |
| Primary APN | 14.00.60.4030 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 2 Stories |
| Building Area | 2,600 sqft Living Area |
| Basement Area | 552 sqft |
| Unfinished Basement | 384 sqft |
| Year Built | Built 1903 |
|---|---|
| Effective Year Built | Effective 1903 |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 238,273 sqft (5.47 acres) |
| Garage Type | Detached |
| Porch | Porch |
| Cooling System | None |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 33051 478TH AVE |
|---|---|
| City | JEFFERSON |
| State | SD |
| Zip | 57038-6817 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | RALPH ROSENBAUM TR 1 IN N1/2SE1/4 (5.47A) |
| Legal Range | 49W |
| Legal Township | 90N |
| Legal Section | 20 |
| Legal Subdivision | RALPH ROSENBAUM TRACT 1 |
| 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, as of April 7, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 33051 478TH AVE, JEFFERSON, SD 57038-6817 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | UNION SD |
| Property Address | 33051 478TH AVE, JEFFERSON, SD 57038-6817 |
| Transaction Type | Mortgage |
| Record Updated | Jan 16, 2026 |
| Name | Verified Name |
|---|
| Document Number | 00176/1125 |
|---|---|
| Date | Oct 6, 2020 |
| Book Page | 176/1125 |
| Instrument | 204786 |
| Name | CITIZENS BANK NA |
|---|---|
| Type | Bank |
| Address | PROVIDENCE, RI 02903 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Nov 1, 2035 |
Source: Union County assessment roll, as of October 6, 2025
| 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) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $1,907.00 (+1.17%) | $171,919 (+19.76%) Land $73,709 Building $98,210 |
| 2024 | $1,885.00 (+13.62%) | |
| 2023 | $1,659.00 (+19.61%) | $143,555 Land $52,650 Building $90,905 |
| 2022 | $1,387.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| 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 |
|
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: 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.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CLAY RWS/SOUTH UNION private · serves 1,447 people · EPA ID SD4602185 |
|---|---|
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 6 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Long Lines Metro Fiber | 1,500 / 1,500 |
| Midco Fixed Wireless | 100 / 20 |
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