Yankton County property record for 4200 Alphonse Rd, Yankton, SD 57078
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1.5 ba · 2,720 sqft · built 2015 |
| Lot Size | 77.5 acres (3,375,900 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $3,583 (2025) |
| Deeds & Mortgages | Jul 2022 Line of Credit Aug 2022 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 09.016.200.400 |
| Primary APN | 09.016.200.400 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 2,720 sqft Living Area |
| Flooring | Other |
| Year Built | Built 2015 |
|---|---|
| Effective Year Built | Effective 2015 |
| Exterior Material | Combination |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 3,375,900 sqft (77.5 acres) |
| Porch | Slab |
| Porch Area | 240 sqft |
| Pole Barn | 2,720 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 4200 ALPHONSE RD |
|---|---|
| City | YANKTON |
| State | SD |
| Zip | 57078-6540 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | NW4 SE4 & NE4 SW4 |
| Legal Range | 56 |
| Legal Township | 93 |
| Legal Section | 16 |
| Jurisdiction | YANKTON SD |
| Township / Civil Division | WEST YANKTON |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 966301 |
4200 Alphonse Rd, a single family home, is owned by two individuals.
Source: Yankton County records, as of October 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 56221 897 RD, FORDYCE, NE 68736-3041 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jul 21, 2022 | Deed of Trust, Mortgage · Line of Credit CORTRUST BANK NA |
| Aug 15, 2022 | Deed of Trust, Mortgage · Line of Credit CORTRUST BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | YANKTON SD |
| Property Address | 4200 ALPHONSE RD, YANKTON, SD 57078-6540 |
| Transaction Type | Mortgage |
| Record Updated | Jan 16, 2026 |
| Name | Verified Name |
|---|---|
| Address | 4200 ALPHONSE RD, YANKTON, SD 57078-6540 |
| Document Number | 000566/165 |
|---|---|
| Date | Jul 21, 2022 |
| Book Page | 566/165 |
| Name | CORTRUST BANK NA |
|---|---|
| Type | Bank |
| Address | YANKTON, SD 57078 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | YANKTON SD |
| Property Address | 4200 ALPHONSE RD, YANKTON, SD 57078-6540 |
| Transaction Type | Mortgage |
| Record Updated | Jan 16, 2026 |
| Name | Verified Name |
|---|---|
| Address | 4200 ALPHONSE RD, YANKTON, SD 57078-6540 |
| Document Number | 000566/356 |
|---|---|
| Date | Aug 15, 2022 |
| Book Page | 566/356 |
| Name | CORTRUST BANK NA |
|---|---|
| Type | Bank |
| Address | YANKTON, SD 57078 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 4200 Alphonse Rd was $3,583, down 1.7% from the year before.
Source: Yankton County assessment roll, as of October 1, 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Yankton County |
| Unified School District | Yankton School District 63-3 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $428,312 (+1.6%) Land $288,712 Building $139,600 | $428,312 Land $288,712 Building $139,600 | |
| 2025 | $3,583.00 (-1.67%) Additional exemption filed | $421,584 Land $281,984 Building $139,600 | |
| 2024 | $3,644.00 | ||
| 2023 | $416,901 Land $277,301 Building $139,600 | ||
| 2022 | $3,928.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4200 Alphonse Rd in Zone X, an area of minimal flood risk, though there have been 21 flood claims nearby since 2010.
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 |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 21 (2010–2018) |
| Claims Outside the SFHA | 16 of 21 |
| Most Recent Claim | Jun 2018 · rainfall accumulation |
| 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.
Wildfire risk around 4200 Alphonse Rd is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 85% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
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 | BY WATER DISTRICT serves 13,320 people · EPA ID SD4600865 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2025 |
| Lead | 1 ppb (2025) action level 15 ppb |
| Water Quality | Turbidity resolved · Mar 2019 |
|---|---|
| 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 1 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Midco Cable | 1,250 / 60 |
| Verizon Fixed Wireless | 300 / 20 |
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