1101 Madill St, Keystone, SD 57751 Property Records

Pennington County property record for 1101 Madill St, Keystone, SD 57751

Property Summary

Property Type	Vacant Land
Lot Size	2.96 acres (128,938 sqft)
Owner	Individual Name on File
Flood Zone	Zone X (moderate risk)
APN	`70-04-330-003`

Property Details

APN / Parcel Number

Primary APN	`70-04-330-003`
Alternative APN	`3986`

Exterior

Lot Area	128,938 sqft (2.96 acres)

Location & Zoning

Account Number	3986
Street Address	1101 MADILL ST
City	KEYSTONE
State	SD
Zip	57751-2054
Property Category	Vacant Land
Property Type	Vacant Land > Uncategorized
Legal Description	ROCKY GULCH ADD, REVISED LOT I OF LOT I (ALSO LOCATED IN PORTION OF MC#1087 & PARTOF BLAIR PLACER MC#1028)
Legal Subdivision	ROCKY GULCH ADD
Legal Lot Number	I
Jurisdiction	PENNINGTON SD
Township / Civil Division	KEYSTONE
Census Block Group	1
Census Block	1064
Census Tract	11005

Owner

Source: Pennington County records · APN 70-04-330-003

Assessment roll updated November 1, 2023 · Last verified August 2023

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	PO BOX 689, KEYSTONE, SD 57751-0689
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Record Updated	Jun 07, 2026

Tax Assessment & Valuation

Source: Pennington County records · Assessment roll updated November 1, 2023 · Last verified August 2023

Property Jurisdictions

Type	Name
State	South Dakota
County	Pennington County
Municipality	Keystone Town
Unified School District	Hill City School District 51-2 (PK - 12)

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Pennington County (46103C), updated June 11, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 461030110051, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 17 policies
Nearby Flood Policies	17 in force
Nearby Flood Claims	3 (1995–2001)
Claims Outside the SFHA	2 of 3
Most Recent Claim	Jul 2001 · river or lake flooding
Claims by Event	Flooding, May 1995 · 2 claims

Wildfire

Wildfire Risk	High above 71% of the US · above 81% of South Dakota
Wildfire Likelihood	0.3% 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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · sampled at 22 locations within half a mile · Last verified October 2026

Provider	Max Down / Up (Mbps)
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
Hanson Communications DSL	25 / 3

May also be available: AT&T, T-Mobile USA.

Cell Coverage

5G (outdoors only) and 4G LTE

Drinking Water

Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, March 2026 · Last verified October 2026

Water System	KEYSTONE serves 349 people
Water Source	Groundwater
Last State Inspection	Oct 2024
Lead	2 ppb (2025) action level 15 ppb

Violations Reported to EPA

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.