Pennington County property record for 13761 Hwy 40, Keystone, SD 57751 · Last verified April 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 768 sqft · built 1988 |
| Lot Size | 126 acres (5,522,101 sqft) |
| Owner | Company Name on File |
| Tax Bill | $2,171 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 71-20-100-004 |
| Primary APN | 71-20-100-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Building Area | 768 sqft Living Area |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Construction Type | Log |
| Lot Area | 5,522,101 sqft (126 acres) |
| Account Number | 74522 |
|---|---|
| Street Address | 13761 HIGHWAY 40 |
| City | KEYSTONE |
| State | SD |
| Zip | 57751 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S20, T2S, R07E, BLACK HILLS MERIDIAN, NE1/4 NW1/4; N1/2 SE1/4 NW1/4; NW1/4 NE1/4, SW1/4 NE1/4 NE1/4, NW1/4 SE1/4 NE1/4, ALL |
| Legal Range | 07E |
| Legal Township | 02S |
| Legal Section | 20 |
| Legal Subdivision | BLACK HILLS MERIDIAN |
| Jurisdiction | PENNINGTON SD |
| Township / Civil Division | MOUNT RUSHMORE |
| Census Block Group | 2 |
| Census Block | 2025 |
| Census Tract | 11005 |
Source: Pennington County records · APN 71-20-100-004
Assessment roll updated August 26, 2025 · Last verified April 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 File |
|---|---|
| Mailing Address | 13790 SD HIGHWAY 40, HERMOSA, SD 57744-6611 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Jun 08, 2026 |
Source: Pennington County records · Assessment roll updated August 26, 2025 · Last verified April 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Pennington County |
| Unified School District | Custer School District 16-1 (PK - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $2,171.00 (-76.23%) | $214,400 (-75.85%) Land $11,900 Building $202,500 |
| 2023 | $9,135.00 (-14.43%) | $887,900 Land $39,300 Building $848,600 |
| 2022 | $10,676.00 |
Source: FEMA National Flood Hazard Layer, Pennington County (46103C), updated June 11, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 461030110052, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone D |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Undetermined not studied |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | High above 79% of the US · above 90% of South Dakota |
|---|---|
| Wildfire Likelihood | About 1 in 189 per year |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 8 locations within about half a mile of this property, a small sample
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Hanson Communications | Fiber | 1,000 / 1,000 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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