Grant County property record for 15329 474th Ave, Twin Brooks, SD 57269
| Property Type | Rural Improved / Non-Residential |
|---|---|
| Lot Size | 160 acres (6,969,600 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $4,911 (2025) |
| Flood Zone | Zone A (high risk) |
| APN | 07.49.32.1000 |
| Primary APN | 07.49.32.1000 |
|---|
| Lot Area | 6,969,600 sqft (160 acres) |
|---|
| Street Address | 15329 474TH AVE |
|---|---|
| City | TWIN BROOKS |
| State | SD |
| Zip | 57269-5902 |
| Property Category | Other |
| Property Type | Other > Rural Improved / Non-Residential |
| Legal Description | NE1/4 |
| Legal Range | 49 |
| Legal Township | 120 |
| Legal Section | 32 |
| Jurisdiction | GRANT SD |
| Township / Civil Division | GRANT CENTER |
| Census Block Group | 2 |
| Census Block | 2254 |
| Census Tract | 953300 |
Source: Grant County records, as of August 10, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 15363 474TH AVE, TWIN BROOKS, SD 57269-5902 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Grant County assessment roll, as of August 10, 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Grant County |
| County Subdivision | Grant Center Township |
| Unified School District | Milbank School District 25-4 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $522,794 (-) Land $360,802 Building $161,992 | |
| 2025 | $4,911.00 | $522,794 (+3.46%) Land $360,802 Building $161,992 |
| 2023 | $505,314 Land $454,944 Building $50,370 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective March 27, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone A high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Not determined for this zone |
| Flood Insurance Requirement | Required federally backed loans |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 1 (2026) |
| Most Recent Claim | Aug 2026 · other causes |
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 | Low lower than 99.1% of the US · lower than 98% of South Dakota |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | GRANT-ROBERTS RURAL WATER SYSTEM private · serves 5,050 people · EPA ID SD4600864 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2023 |
| Lead | 3 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.
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