Pennington County property record for 510 E Watertown St, Rapid City, SD 57701
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 1,485 sqft · built 1955 |
| Lot Size | 0.24 acres (10,454 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $4,678 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 21-31-330-013 |
| Primary APN | 21-31-330-013 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,485 sqft Total Area |
| Basement Area | 1,485 sqft |
| Finished Basement | 994 sqft |
| Unfinished Basement | 491 sqft |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Ranch |
| Lot Area | 10,454 sqft (0.24 acres) |
| Porch | Slab |
| Porch Area | 32 sqft |
| Deck Area | 225 sqft |
| Account Number | 30964 |
|---|---|
| Street Address | 510 E WATERTOWN ST |
| City | RAPID CITY |
| State | SD |
| Zip | 57701-1449 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | SCHNASSE ADD, BLOCK 1, LOT 15 - 16 |
| Legal Subdivision | SCHNASSE ADD |
| Legal Block | 1 |
| Legal Lot Number | 15-16 |
| Jurisdiction | PENNINGTON SD |
| Township / Civil Division | RAPID CITY |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 10500 |
Source: Pennington County records, as of September 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 4728 CHALKSTONE DR, RAPID CITY, SD 57701-9587 |
| 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 | Rapid City |
| Unified School District | Rapid City School District 51-4 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $349,600 (-) Land $44,000 Building $305,600 | |
| 2025 | $4,678.00 (-5.8%) | $349,600 (-0.31%) Land $44,000 Building $305,600 |
| 2023 | $4,966.00 (+9.87%) | $350,700 Land $33,800 Building $316,900 |
| 2022 | $4,520.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 | RAPID CITY serves 72,009 people · EPA ID SD4600406 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | May 2024 |
| Lead | 6 ppb (2024) 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 464 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Midco Cable | 2,000 / 350 |
| Bluepeak Cable · Fiber in parts of the area | 1,000 / 30 |
May also be available: AT&T, T-Mobile, Verizon.
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