Yankton County property record for 816 Walnut St, Yankton, SD 57078
| Property Type | Office Building |
|---|---|
| Details | 6,700 sqft · built 1980 |
| Lot Size | 0.521 acres (22,704 sqft) |
| Owner | Company Name on File |
| Tax Bill | $218 (2022) |
| Flood Zone | Zone X (minimal risk) |
| APN | 78.900.007.200 |
| Primary APN | 78.900.007.200 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 6,700 sqft Total Area |
| Year Built | Built 1980 |
|---|---|
| Roof Material | Built-Up Asphalt |
| Lot Area | 22,704 sqft (0.521 acres) |
| Cooling System | None |
|---|---|
| Heating System | HVAC |
| Street Address | 816 WALNUT ST |
|---|---|
| City | YANKTON |
| State | SD |
| Zip | 57078-3506 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Office Building |
| Legal Description | LTS 20-22 BLK 7 WETMORE & STEWARTS ADDN |
| Legal Subdivision | WETMORE & STEWART |
| Legal Block | 7 |
| Legal Lot Number | 20-22 |
| Jurisdiction | YANKTON SD |
| Township / Civil Division | YANKTON |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 966100 |
Source: Yankton County records · APN 78.900.007.200
Assessment roll updated November 1, 2023 · Last verified November 2023
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 657, DES MOINES, IA 50306-0657 |
| Owner Type | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Jun 07, 2026 |
Source: Yankton County records · Assessment roll updated November 1, 2023 · Last verified November 2023
| Type | Name |
|---|---|
| State | South Dakota |
| County | Yankton County |
| Municipality | Yankton City |
| Unified School District | Yankton School District 63-3 (PK - 12) |
| Year | Tax Bill |
|---|---|
| 2022 | $218.00 |
Source: FEMA National Flood Hazard Layer as of February 13, 2025 · 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 | 2 in force |
| Nearby Flood Claims | 9 (1984–2019) |
| Most Recent Claim | Mar 2019 · Severe Winter Storm, Snowstorm, And Flooding |
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.5% of South Dakota |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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) |
|---|---|
| Midcontinent Communications Cable | 1,250 / 60 |
| Clarity Telecom Cable · Fiber in parts of the area | 1,000 / 30 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
Based on FCC filings for 437 locations within half a mile of this property.
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 | YANKTON serves 15,411 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2023 |
| Also Mapped Here | BY WATER DISTRICT |
| Lead | Under 1 ppb (2024) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Jan 2020 |
|---|---|
| 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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