Pennington County property record for 13777 Borglum Rd, Keystone, SD 57751
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,088 sqft · built 2021 |
| Lot Size | 4.36 acres (189,922 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $94,000 (Apr 2020) |
| Tax Bill | $11,092 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 71-17-451-002 |
| Primary APN | 71-17-451-002 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 2,088 sqft Living Area |
| Basement Area | 1,008 sqft |
| Finished Basement | 918 sqft |
| Year Built | Built 2021 |
|---|---|
| Effective Year Built | Effective 2021 |
| Architectural Style | Ranch |
| Lot Area | 189,922 sqft (4.36 acres) |
| Garage Type | Attached |
| Garage Area | 952 sqft |
| Porch | Slab |
|---|---|
| Porch Area | 740 sqft |
| Deck Area | 560 sqft |
| Patio Area | 360 sqft |
| Account Number | 50914 |
|---|---|
| Street Address | 13777 BORGLUM RD |
| City | KEYSTONE |
| State | SD |
| Zip | 57751-6648 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | RUSHMORE RANCH ESTATES SUBD, TRACT 52 |
| Legal Subdivision | RUSHMORE RANCH ESTATES SUBD |
| Legal Tract | 52 |
| Jurisdiction | PENNINGTON SD |
| Township / Civil Division | MOUNT RUSHMORE |
| Census Block Group | 2 |
| Census Block | 2047 |
| Census Tract | 11005 |
Source: Pennington County records, as of March 24, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 13777 BORGLUM RD, KEYSTONE, SD 57751-6648 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 9, 2020 · Amount on Record |
| Deed Sale | Apr 9, 2020 · Amount on Record |
| Record Updated | Jun 8, 2026 |
Source: Pennington County assessment roll, as of August 26, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Pennington County |
| Unified School District | Custer School District 16-1 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $11,092.00 (+21.44%) | $1,088,300 (+25.8%) Land $216,100 Building $872,200 |
| 2023 | $9,134.00 (+109.5%) | $865,100 Land $173,100 Building $692,000 |
| 2022 | $4,360.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective June 11, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone D undetermined · not studied |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
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 79% of the US · above 90% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.5% 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 | RUSHMORE RANCH ESTATES private · serves 168 people · EPA ID SD4602212 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Feb 2025 |
| Lead | 1 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 8 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TSC Fiber | 1,000 / 1,000 |
5G (outdoors only) and 4G LTE
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