Kingsbury County property record for 21855 436th Ave, Oldham, SD 57051
| Property Type | Rural Home |
|---|---|
| Lot Size | 23.8 acres (1,038,906 sqft) |
| Owner | Company Name on File |
| Last Sale | $74,000 (Jun 2009) |
| Tax Bill | $2,299 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 890 |
| Primary APN | 890 |
|---|
| Lot Area | 1,038,906 sqft (23.8 acres) |
|---|
| Street Address | 21855 436TH AVE |
|---|---|
| City | OLDHAM |
| State | SD |
| Zip | 57051-7002 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | E72 RODS OF N53 RODS OF SE 25-109-56 |
| Jurisdiction | KINGSBURY SD |
| Township / Civil Division | MATHEWS |
| Census Block Group | 4 |
| Census Block | 4195 |
| Census Tract | 958100 |
Source: Kingsbury County records · APN 890
Assessment roll updated November 1, 2024 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 415, DE SMET, SD 57231-0415 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 05, 2009 · Amount on Record |
| Deed Sale | Jun 05, 2009 · Amount on Record |
| Deed Document Number | 0000110419 |
| Record Updated | Jun 08, 2026 |
Source: Kingsbury County records · Assessment roll updated November 1, 2024 · Last verified October 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Kingsbury County |
| County Subdivision | Mathews Township |
| Unified School District | De Smet School District 38-2 (PK - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $2,299.00 (+76.98%) | $242,023 (+71.79%) Land $70,570 Building $171,453 |
| 2023 | $1,299.00 | $140,884 Land $64,211 Building $76,673 |
| 2022 | $1,299.00 |
Source: FEMA National Flood Hazard Layer as of May 21, 2024 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 12 (1986–2019) |
| Claims Outside the SFHA | 1 of 12 |
| Most Recent Claim | Nov 2019 · rainfall accumulation |
| Claims by Event |
|
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Alliance Communications Cooperative Fiber | 1,000 / 1,000 |
Based on FCC filings for 1 locations within half a mile of this property.
5G and 4G LTE (outdoors only)
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | KINGBROOK II RURAL WATER SYSTEM private · serves 2,715 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2024 |
| Lead | 2 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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