121 Case St, Yankton, SD 57078 Property Records

Yankton County property record for 121 Case St, Yankton, SD 57078

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 864 sqft · built 1975
Lot Size	0.5 acres (21,780 sqft)
Owner	Individual Name on Record
Last Sale	$162,500 (Jun 2020)
Tax Bill	$2,465 (2024)
Deeds & Mortgages	Jun 2020 Sale & Mortgage Apr 2019 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`09.022.700.406`

Property Details

APN / Parcel Number

Primary APN	`09.022.700.406`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	864 sqft Living Area
Basement Area	864 sqft
Finished Basement	864 sqft
Flooring	Laminate Plank

Exterior

Year Built	Built 1975
Exterior Material	Wood
Roof Material	Asphalt
Lot Area	21,780 sqft (0.5 acres)
Garage Type	Attached
Garage Area	576 sqft
Parking Spaces	2 Parking Spaces
Porch	Enclosed Porch
Porch Area	228 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air

Location & Zoning

Street Address	121 CASE ST
City	YANKTON
State	SD
Zip	57078-4711
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LT 6 BLK 4 RIVERSIDE ACRES S/D
Legal Subdivision	RIVERSIDE ACRES SUBDIVISION
Legal Block	4
Legal Lot Number	6
Jurisdiction	YANKTON SD
Township / Civil Division	WEST YANKTON
Census Block Group	1
Census Block	1035
Census Tract	966301

Owner

Source: Yankton County records, as of January 15, 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	121 CASE ST, YANKTON, SD 57078-4711
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jun 8, 2020	Warranty Deed, Transfer · Conventional Mortgage FIRST DAKOTA NATIONAL BANK
Apr 29, 2019	Warranty Deed, Transfer · Conventional Mortgage GREAT WESTERN BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 8, 2020 · Amount on Record
Deed Sale	Jun 8, 2020 · Amount on Record
Prior Sale	Apr 29, 2019 · Amount on Record
Deed Document Number	0000551236
Deed Book / Page	551 / 236
Record Updated	Jun 8, 2026

June 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	YANKTON SD
Recording Date	Jun 8, 2020
Property Address	121 CASE ST, YANKTON, SD 57078-4711
Document Number	000551/236
Book / Page	551 / 236
Map Reference	MB S4 PG 54A
Instrument Date	Jun 5, 2020
Transaction Type	Transfer
Record Updated	Jan 16, 2026
Title Company	BRANTON TITLE COMPANY, YANKTON TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$162.50
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	17677 US HAY 81, WATERTOWN, SD 57201

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	121 CASE ST, YANKTON, SD 57078-4711

Mortgage

Document Number	0000551237
Date	Jun 8, 2020
Instrument	551/237

Lender

Name	FIRST DAKOTA NATIONAL BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2050

April 2019: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	YANKTON SD
Recording Date	Apr 29, 2019
Property Address	121 CASE ST, YANKTON, SD 57078-4711
Document Number	000544/581
Book / Page	544 / 581
Map Reference	MB S4 PG 54A
Instrument Date	Apr 26, 2019
Transaction Type	Transfer
Record Updated	Jan 16, 2026
Title Company	FIRST DAKOTA TITLE

Transaction

Amount	Amount Recorded
Tax	$144.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	49149 872ND RD, ONEILL, NE 68763-4000

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	121 CASE ST, YANKTON, SD 57078-4711

Mortgage

Document Number	0000544582
Date	Apr 29, 2019
Instrument	544/582

Lender

Name	GREAT WESTERN BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 1, 2049

Mortgage

Document Number	000545/020
Date	May 1, 2019
Book Page	545/020

Lender

Name	GREAT WESTERN BANK
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 1, 2049

Tax Assessment & Valuation

Source: Yankton County assessment roll, as of November 1, 2025

Property Jurisdictions

Type	Name
State	South Dakota
County	Yankton County
Unified School District	Yankton School District 63-3 (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2025		$245,200 (+38.92%) Land $25,000 Building $220,200
2024	$2,465.00 (+25.89%)
2023		$176,500 Land $20,800 Building $155,700
2022	$1,958.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

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	Flooding, Jul 2011 · 19 claims

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

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 99.1% of the US · lower than 98% of South Dakota
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 122 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

May also be available: Hartington Telecommunications.

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