Grant County property record for 15059 465th Ave, Twin Brooks, SD 57269
| Property Type | Rural Home |
|---|---|
| Lot Size | 22 acres (958,320 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $3,923 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 11.51.14.4001 |
| Primary APN | 11.51.14.4001 |
|---|
| Lot Area | 958,320 sqft (22 acres) |
|---|
| Street Address | 15059 465TH AVE |
|---|---|
| City | TWIN BROOKS |
| State | SD |
| Zip | 57269-5705 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | SUMNER RANCH ADDITION IN THE SE1/4 |
| Legal Range | 51 |
| Legal Township | 120 |
| Legal Section | 14 |
| Legal Subdivision | SUMNER RANCH ADDITION |
| Jurisdiction | GRANT SD |
| Township / Civil Division | MAZEPPA |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 953300 |
15059 465th Ave, a rural home, is owned and occupied by two individuals.
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 15059 465TH AVE, TWIN BROOKS, SD 57269-5705 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 15059 465th Ave was $3,923.
Source: Grant County assessment roll, as of August 10, 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Grant County |
| County Subdivision | Mazeppa Township |
| Unified School District | Waverly School District 14-5 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $365,690 (-0.41%) Land $35,929 Building $329,761 | |
| 2025 | $3,923.00 | $367,185 Land $35,929 Building $331,256 |
| 2023 | $301,507 Land $61,037 Building $240,470 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 15059 465th Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2026.
Source: FEMA National Flood Hazard Layer, effective March 27, 2024 · 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 | 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.
Wildfire risk around 15059 465th Ave is moderate, ranking above 59% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 59% of the US · above 56% 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 | 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.
Source: FCC Broadband Data Collection, based on 1 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| RCTech Fiber | 1,500 / 1,500 |
5G (outdoors only) and 4G LTE
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