Pennington County property record for 721 Bullion St, Keystone, SD 57751
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 975 sqft · built 1998 |
| Lot Size | 0.11 acres (4,792 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $1,063 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 70-04-377-010 |
| Primary APN | 70-04-377-010 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 975 sqft Living Area |
| Basement Area | 780 sqft |
| Unfinished Basement | 780 sqft |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1998 |
| Architectural Style | Contemporary |
| Lot Area | 4,792 sqft (0.11 acres) |
| Porch | Slab |
|---|---|
| Porch Area | 260 sqft |
| Deck Area | 48 sqft |
| Patio Area | 260 sqft |
| Account Number | 47309 |
|---|---|
| Street Address | 721 BULLION ST |
| City | KEYSTONE |
| State | SD |
| Zip | 57751 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | HARNEY ADD, BLOCK 7, LOT 1 & THAT PT OF VAC BULLION ST ADJ TOSAID LOT |
| Legal Subdivision | HARNEY ADD |
| Legal Block | 7 |
| Legal Lot Number | 1 |
| Jurisdiction | PENNINGTON SD |
| Township / Civil Division | KEYSTONE |
| Census Block Group | 1 |
| Census Block | 1064 |
| Census Tract | 11005 |
721 Bullion St, a single family home, is held in a trust.
Source: Pennington County records, as of September 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | PO BOX 195, KEYSTONE, SD 57751-0195 |
| Owner Type | Company |
| Vesting | Trust, Irrevocable Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 721 Bullion St was $1,063.
Source: Pennington County assessment roll, as of September 14, 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Pennington County |
| Municipality | Keystone Town |
| Unified School District | Hill City School District 51-2 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $252,300 (-) Land $37,700 Building $214,600 | |
| 2025 | $1,063.00 | $252,300 Land $37,700 Building $214,600 |
| 2023 | $2,388.00 (+13.71%) | $659,300 Land $256,500 Building $402,800 |
| 2022 | $2,100.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 721 Bullion St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective June 11, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 17 policies |
| Nearby Flood Policies | 17 in force |
| Nearby Flood Claims | 3 (1995–2001) |
| Claims Outside the SFHA | 2 of 3 |
| Most Recent Claim | Jul 2001 · river or lake flooding |
| Claims by Event |
|
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 721 Bullion St is moderate, ranking above 67% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 67% of the US · above 76% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.2% 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 | KEYSTONE serves 349 people · EPA ID SD4601082 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2024 |
| Lead | 2 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 81 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
| TSC DSL | 100 / 20 |
May also be available: AT&T.
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