Dewey County property record for 23236 SD Highway 20, Isabel, SD 57633
| Property Type | Rural Home |
|---|---|
| Details | built 1956 |
| Lot Size | 78.8 acres (3,436,013 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $451 (2024) |
| APN | 57-0000-004-0016-022-2-0-00401 |
| Primary APN | 57-0000-004-0016-022-2-0-00401 |
|---|---|
| Alternative APN |
|
| Year Built | Built 1956 |
|---|---|
| Lot Area | 3,436,013 sqft (78.8 acres) |
| Street Address | 23236 SD HIGHWAY 20 |
|---|---|
| City | ISABEL |
| State | SD |
| Zip | 57633-8501 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | LOT 4 & SW1/4NW1/4 4-16-22 |
| Legal Lot Number | 4 |
| Jurisdiction | DEWEY SD |
| Township / Civil Division | NORTH DEWEY |
| Census Block Group | 2 |
| Census Block | 2119 |
| Census Tract | 941700 |
Source: Dewey County records, as of December 11, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | PO BOX 214, ISABEL, SD 57633-0214 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 27, 2023 |
| Deed Sale | Feb 27, 2023 |
| Deed Document Number | 00000M2148 |
| Record Updated | Jun 8, 2026 |
Source: Dewey County assessment roll, as of November 1, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Dewey County |
| Unified School District | Timber Lake School District 20-3 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $48,142 (-2.84%) Land $29,263 Building $18,879 | |
| 2024 | $451.00 | |
| 2023 | $49,549 Land $30,078 Building $19,471 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| 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 | Moderate above 59% of the US · above 56% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.1% 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 | TRI-COUNTY RURAL WATER SYSTEM private · serves 2,190 people · EPA ID SD4600112 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2024 |
| Lead | 4 ppb (2023) 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 2 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| CRST Telephone Authority Fiber | 250 / 100 |
4G LTE (outdoors only), no 5G reported
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