Yankton County property record for 509 Armstrong St, Gayville, SD 57031
| Property Type | Other Improved |
|---|---|
| Lot Size | 0.258 acres (11,250 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $156 (2025) |
| Deeds & Mortgages | Nov 2023 Line of Credit Jun 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 31.100.014.050 |
| Primary APN | 31.100.014.050 |
|---|
| Lot Area | 11,250 sqft (0.258 acres) |
|---|
| Street Address | 509 ARMSTRONG ST |
|---|---|
| City | GAYVILLE |
| State | SD |
| Zip | 57031-2052 |
| Property Category | Other |
| Property Type | Other > Other Improved |
| Legal Description | W25 LT 4 & ALL LT 5, BLK 14 ORIGINAL TOWN |
| Legal Subdivision | ORIGINAL TOWN |
| Legal Block | 14 |
| Legal Lot Number | 4,5 |
| Jurisdiction | YANKTON SD |
| Township / Civil Division | GAYVILLE |
| Census Block Group | 5 |
| Census Block | 5071 |
| Census Tract | 966400 |
Source: Yankton County records, as of October 1, 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 | PO BOX 111, YANKTON, SD 57078-0111 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Nov 15, 2023 | Deed of Trust, Mortgage · Line of Credit FIRST DAKOTA NATIONAL BANK |
| Jun 3, 2020 | Quit Claim Deed, Transfer UNKNOWN, YANKTON TITLE COMPANY INC |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | YANKTON SD |
| Property Address | 509 ARMSTRONG ST, GAYVILLE, SD 57031-2052 |
| Transaction Type | Mortgage |
| Record Updated | Jan 16, 2026 |
| Name | Verified Name |
|---|---|
| Address | 300 KINGSBURY ST, GAYVILLE, SD 57031 |
| Document Number | 000571/582 |
|---|---|
| Date | Nov 15, 2023 |
| Book Page | 571/582 |
| Name | FIRST DAKOTA NATIONAL BANK |
|---|---|
| Type | Bank |
| Address | YANKTON, SD 57078 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | YANKTON SD |
| Recording Date | Jun 3, 2020 |
| Property Address | 509 ARMSTRONG ST, GAYVILLE, SD 57031-2052 |
| Document Number | 000551/198 |
| Book / Page | 551 / 198 |
| Map Reference | MB G PG 26 |
| Instrument Date | Mar 19, 2020 |
| Transaction Type | Transfer |
| Record Updated | Jan 16, 2026 |
| Title Company | UNKNOWN, YANKTON TITLE COMPANY INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | PO BOX 204, YANKTON, SD 57078-0204 |
| Name | Verified Name |
|---|---|
| Address | PO BOX 1111, YANKTON, SD 57078-1111 |
Source: Yankton County assessment roll, as of October 1, 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Yankton County |
| Municipality | Gayville Town |
| Unified School District | Gayville-Volin School District 63-1 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $10,600 (-) Land $7,900 Building $2,700 | $10,600 Land $7,900 Building $2,700 | |
| 2025 | $156.00 (-3.7%) | $10,600 (-) Land $7,900 Building $2,700 | |
| 2024 | $162.00 (-1%) | ||
| 2023 | $10,600 Land $7,900 Building $2,700 | ||
| 2022 | $180.00 |
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 February 13, 2025 · 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 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 11 (1997–2019) |
| Claims Outside the SFHA | 5 of 11 |
| Most Recent Claim | Sep 2019 · Severe Storms, Tornadoes, And Flooding |
| Claims by Event |
|
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 | Low lower than 98% of the US · lower than 96% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.01% 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 | GAYVILLE serves 392 people · EPA ID SD4600140 |
|---|---|
| Water Source | Purchased groundwater from CLAY RURAL WATER SYSTEM |
| Last State Inspection | Dec 2024 |
| Lead | 1 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 36 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Midco Cable | 1,250 / 60 |
| Bluepeak Cable · Fiber in parts of the area | 1,000 / 30 |
| Verizon Fixed Wireless | 300 / 20 |
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