Custer County property record for 100 Walnut St, Buffalo Gap, SD 57722
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,030 sqft · built 1914 |
| Lot Size | 0.28 acres (12,197 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $654 (2025) |
| Flood Zone | Zone A (high risk) |
| APN | 007826 |
| Primary APN | 007826 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 2 Rooms |
| Stories | 1 Story |
| Building Area | 1,030 sqft Living Area |
| 1st Floor Area | 384 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1914 |
|---|---|
| Effective Year Built | Effective 1914 |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 12,197 sqft (0.28 acres) |
| Lot Dimensions | 150 ft deep x 83 ft wide |
| Porch | Porch |
|---|---|
| Porch Area | 64 sqft |
| Patio Area | 96 sqft |
| Shed | 1 Shed |
| Shed Area | 240 sqft |
| Cooling System | None |
|---|---|
| Heating System | HVAC |
| Street Address | 100 WALNUT ST |
|---|---|
| City | BUFFALO GAP |
| State | SD |
| Zip | 57722 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | E 25' OF LOT 17 & ALL OF LOT 18 BLOCK 6, BUFFALO GAP 722 00 050 006 018 00 |
| Legal Range | 00 |
| Legal Township | 00 |
| Legal Section | 72 |
| Legal Block | 6 |
| Legal Lot Number | 17-18 |
| Jurisdiction | CUSTER SD |
| Township / Civil Division | BUFFALO GAP |
| Census Block Group | 1 |
| Census Block | 1208 |
| Census Tract | 965100 |
Source: Custer County records, as of September 8, 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 Record |
|---|---|
| Mailing Address | PO BOX 440, HOT SPRINGS, SD 57747-0440 |
| Owner Type | Individual |
| Vesting | Joint Tenants with Right of Survivorship |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Custer County assessment roll, as of September 8, 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Custer County |
| Municipality | Buffalo Gap Town |
| Unified School District | Hot Springs School District 23-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $51,237 (-9.06%) Building $51,237 | ||
| 2025 | $654.00 (-10.66%) | $56,342 (+0.09%) Land $5,105 Building $51,237 | |
| 2023 | $732.00 (-16.91%) | $56,289 Land $5,105 Building $51,184 | |
| 2022 | $46,157 Land $5,105 Building $41,052 | ||
| 2021 | $881.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 21, 2020 · 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 |
| Flood Insurance Cost | Premium on Record median of 25 policies |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 24 (2006–2010) |
| Claims Outside the SFHA | 1 of 24 |
| Most Recent Claim | May 2010 · rainfall accumulation |
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 | High above 78% of the US · above 89% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.6% 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 | BUFFALO GAP serves 126 people · EPA ID SD4600077 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | May 2025 |
| Also Mapped Here | FALL RIVER WUD |
| Lead | 2 ppb (2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | No certified operator Jul 2025 |
| Monitoring and Reporting | 4 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 76 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Golden West Telecommunications Fiber | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
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