Custer County property record for 24600 Iron Mountain Rd, Keystone, SD 57751
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 1,657 sqft · built 1945 |
| Lot Size | 16.9 acres (739,649 sqft) |
| Owner | Company Name on Record |
| Last Sale | $737,000 (Jul 2021) |
| Tax Bill | $9,355 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 003824 |
| Primary APN | 003824 |
|---|---|
| Alternative APN |
|
| Full Baths | 2 Baths |
|---|---|
| Plumbing Fixtures | 6 Plumbing Fixtures |
| Stories | 1 Story |
| Building Area | 1,657 sqft Living Area |
| Gross Area | 1,020 sqft |
| 1st Floor Area | 912 sqft |
| Basement Area | 912 sqft |
| Finished Basement | 912 sqft |
| Unfinished Basement | 1,292 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1945 |
|---|---|
| Effective Year Built | Effective 1945 |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Foundation Type | No Foundation |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 739,649 sqft (16.9 acres) |
| Garage Type | Detached |
| Garage Area | 392 sqft |
| Parking Spaces | 1 Parking Space |
| Pool Area | 512 sqft |
|---|---|
| Porch | Open Porch |
| Deck Area | 40 sqft |
| Total Buildings | 2 Buildings |
| Cooling System | None |
|---|---|
| Heating System | HVAC |
| Street Address | 24600 IRON MOUNTAIN RD |
|---|---|
| City | KEYSTONE |
| State | SD |
| Zip | 57751-6655 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | HALLEY RANCH SUB - TR B (LESS LOT 1 OF HALLEY RANCH SUB)IN NE4NE4 SEC 34 T2 R6 16.981 AC 1320603400000100 |
| Legal Range | 06 |
| Legal Township | 02 |
| Legal Section | 34 |
| Legal Subdivision | HALLEY SUBDIVISON |
| Legal Tract | B |
| Legal Lot Number | 1 |
| Jurisdiction | CUSTER SD |
| Township / Civil Division | EAST CUSTER |
| Census Block Group | 1 |
| Census Block | 1045 |
| Census Tract | 965100 |
Source: Custer County records, as of March 31, 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 Record |
|---|---|
| Mailing Address | 24600 IRON MOUNTAIN RD, KEYSTONE, SD 57751-6655 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 29, 2021 · Amount on Record |
| Deed Sale | Jul 29, 2021 · Amount on Record |
| Prior Sale | Feb 8, 2005 |
| Prior Transfer Date | Jun 7, 2005 |
| Prior Transfer Doc | 45/476 |
| Record Updated | Jun 8, 2026 |
Source: Custer County assessment roll, as of September 3, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Custer County |
| Unified School District | Custer School District 16-1 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $9,355.00 (+5.52%) | $771,570 (+14.84%) Land $316,678 Building $454,892 | |
| 2023 | $8,866.00 (+24.86%) | $671,843 Land $316,678 Building $355,165 | |
| 2022 | $531,796 Land $246,945 Building $284,851 | ||
| 2021 | $7,101.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 21, 2020 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 25 policies |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 24 (2006–2010) |
| Claims Outside the SFHA | 1 of 24 |
| Most Recent Claim | May 2010 · rainfall accumulation |
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 77% of the US · above 88% 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 | SOUTHERN BLACK HILLS WATER private · serves 947 people · EPA ID SD4602309 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2026 |
| 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 4 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TSC Fiber | 1,000 / 1,000 |
4G LTE (outdoors only), no 5G reported
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