Union County property record for 48380 W Authier Rd, Jefferson, SD 57038
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 4 ba · 2,139 sqft · built 1997 |
| Lot Size | 2.5 acres (108,900 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,258 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 17.00.32.4070 |
| Primary APN | 17.00.32.4070 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 4 Baths |
| Stories | 1 Story |
| Building Area | 2,139 sqft Living Area |
| Basement Area | 2,136 sqft |
| Flooring | Brick |
| Interior Walls | Brick |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1997 |
|---|---|
| Effective Year Built | Effective 1997 |
| Exterior Material | Combination |
| Construction Type | Wood |
| Foundation Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 108,900 sqft (2.5 acres) |
| Garage Type | Attached |
| Garage Area | 816 sqft |
| Parking Spaces | 3 Parking Spaces |
| Porch | Covered Porch |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Central |
| Street Address | 48380 W AUTHIER RD |
|---|---|
| City | JEFFERSON |
| State | SD |
| Zip | 57038-6869 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT C OF CHICOINE TR 1 IN S1/2SE1/4SE1/4 (2.50A) |
| Legal Range | 48W |
| Legal Township | 90N |
| Legal Section | 32 |
| Legal Tract | 1 |
| Legal Lot Number | C |
| Legal Unit | 1 |
| Jurisdiction | UNION SD |
| Township / Civil Division | JEFFERSON |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 20302 |
48380 W Authier Rd is owned and occupied by two individuals.
Source: Union County records, as of October 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 48380 W AUTHIER RD, JEFFERSON, SD 57038-6869 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 48380 W Authier Rd was $5,258, up % from the year before.
Source: Union County assessment roll, as of October 6, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Union County |
| County Subdivision | Jefferson Township |
| Unified School District | Dakota Valley School District 61-8 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $5,258.00 (+0.02%) | $418,603 (-) Land $54,095 Building $364,508 |
| 2025 | $5,257.00 (+1.12%) | $418,603 Land $54,095 Building $364,508 |
| 2024 | $5,199.00 (+10.48%) | |
| 2023 | $4,706.00 (+6.13%) | $370,011 Land $38,640 Building $331,371 |
| 2022 | $4,434.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 48380 W Authier Rd in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2024.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 18 policies |
| Nearby Flood Policies | 18 in force |
| Nearby Flood Claims | 2 (2024) |
| Claims Outside the SFHA | 2 of 2 |
| 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.
Wildfire risk around 48380 W Authier Rd is low, with a 0.04% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 63% of the US · lower than 75% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.04% annual chance |
| Exposure | Direct burnable vegetation |
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 5 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Long Lines Metro Fiber | 1,500 / 1,500 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
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