Pennington County property record for 409 Swanzey St, Keystone, SD 57751
| Property Type | Vacant Land |
|---|---|
| Lot Size | 0.09 acres (3,920 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $140 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 70-09-151-001 |
| Primary APN | 70-09-151-001 |
|---|---|
| Alternative APN |
|
| Lot Area | 3,920 sqft (0.09 acres) |
|---|
| Account Number | 9456 |
|---|---|
| Street Address | 409 SWANZEY ST |
| City | KEYSTONE |
| State | SD |
| Zip | 57751-2024 |
| Property Category | Vacant Land |
| Property Type | Vacant Land > Uncategorized |
| Legal Description | SWANZEY ADD, BLOCK 2, LOT 6 |
| Legal Subdivision | SWANZEY ADD |
| Legal Block | 2 |
| Legal Lot Number | 6 |
| Jurisdiction | PENNINGTON SD |
| Township / Civil Division | KEYSTONE |
| Census Block Group | 1 |
| Census Block | 1064 |
| Census Tract | 11005 |
Source: Pennington County records, as of September 14, 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 | Individual Name on Record |
|---|---|
| Mailing Address | 625 MOUNTAIN VIEW RD, RAPID CITY, SD 57702-2518 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
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 |
|---|---|
| 2025 | $140.00 (-2.78%) |
| 2023 | $144.00 |
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 71% of the US · above 81% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.3% 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 40 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| TSC DSL · Fiber in parts of the area | 100 / 20 |
May also be available: AT&T, T-Mobile, Verizon.
5G (outdoors only) and 4G LTE
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