Brown County property record for 40646 139th St, Groton, SD 57445
| Lot Size | 6 acres (261,360 sqft) |
|---|---|
| Owner | Company Name on Record |
| Flood Zone | Zone X (minimal risk) |
| APN | 25181226030040 |
| Primary APN | 25181226030040 |
|---|---|
| Alternative APN |
|
| Lot Area | 261,360 sqft (6 acres) |
|---|
| Account Number | 25181226030040 |
|---|---|
| Street Address | 40646 139TH ST |
| City | GROTON |
| State | SD |
| Zip | 57445 |
| Property Category | Other |
| Property Type | Unknown |
| Legal Description | AB RR ROW SW 18-122-60 |
| Jurisdiction | BROWN SD |
| Township / Civil Division | EAST HANSON |
| Census Block Group | 1 |
| Census Block | 1102 |
| Census Tract | 951900 |
Source: Brown County records, as of January 12, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | PO BOX 1318, HURON, SD 57350-1318 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Jun 8, 2026 |
Source: Brown County assessment roll, as of November 1, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Brown County |
| County Subdivision | East Hanson Township |
| Unified School District | Groton Area School District 06-6 (PK - 12) |
Source: FEMA National Flood Hazard Layer, effective March 30, 2015 · 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 | 2 in force |
| Nearby Flood Claims | 7 (1997–2011) |
| Claims Outside the SFHA | 7 of 7 |
| Most Recent Claim | Apr 2011 · 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 | Moderate above 56% of the US · above 49% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.1% 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 | WEB WATER DEVELOPMENT ASSOCIATION private · serves 20,750 people · EPA ID SD4601089 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2024 |
| Lead | 2 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, as of December 31, 2025
5G (outdoors only) and 4G LTE
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