Keystone
Property Data

Pennington County, South Dakota

Explore accurate parcel and ownership records,
directly sourced from county assessors.

Pennington County

ZIP Codesby Total Population

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Total Population
893893

DistributionTotal Population

No data available

Demographics

Total Population

893

Median Age

54.2

Population Under 18

19.5%

Population 65+

23.4%

Total Households

327

Average Household Size

2.67

Keystone, SD housing and demographic statistics

ZIP/ZCTA areas can cross city and county boundaries. Each row describes its ZIP/ZCTA area, not the city as a whole. These values are not combined into a city estimate.

Individual ZIP/ZCTA estimates associated with Keystone, SD
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
57751893$97,969$60085.6%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions. — indicates unavailable or suppressed data.

Area property statistics

Recorded property characteristics and residential parcel-sale records for Keystone, SD. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

City measurements cover the selected county's portion of the city.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records0Recorded——
Average recorded sale amount———

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: March 2024; not verified completeness.

Recorded property statistics

Reported property statistics for Keystone, SD
MeasureKeystone, SDPennington County, SD
Average recorded floor area (sq ft)2,2132,071
Average recorded bedrooms2.73.2
Average recorded bathrooms1.92
Median year built19881981
Condominium share of properties0%0%

Keystone, SD: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 24, 2026. Calculated . Published . Dataset last refreshed: .

Pennington County, SD: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 24, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

No supported recent-period estimates are available for this area. Recorded statistics above remain available.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: March 2024; not a verified completeness date.

Properties in Keystone

Showing page 2 of properties

127 Winter Street

Keystone, SD 57751

12741 Matthew Court

Keystone, SD 57751

12747 Devin Court

Keystone, SD 57751

12747 Old Hill City Road

Keystone, SD 57751

12748 Devin Court

Keystone, SD 57751

12748 Old Hill City Road

Keystone, SD 57751

12752 Wolframite Road

Keystone, SD 57751

12754 Devin Court

Keystone, SD 57751

12785 Old Hill City Road

Keystone, SD 57751

12786 Wolframite Road

Keystone, SD 57751

12791 Wolframite Road

Keystone, SD 57751

12799 Wolframite Road

Keystone, SD 57751

12812 Old Hill City Road

Keystone, SD 57751

12862 Old Hill City Road

Keystone, SD 57751

12868 Old Hill City Road

Keystone, SD 57751

12870 Old Hill City Road

Keystone, SD 57751

12872 Old Hill City Road

Keystone, SD 57751

12875 Old Hill City Road

Keystone, SD 57751

12960 Old Hill City Road

Keystone, SD 57751

12965 Old Hill City Road

Keystone, SD 57751

12970 Old Hill City Road

Keystone, SD 57751

12970 S Highway 16

Keystone, SD 57751

12971 Old Hill City Road

Keystone, SD 57751

12975 Old Hill City Road

Keystone, SD 57751

12976 Old Hill City Road

Keystone, SD 57751

12980 S Highway 16

Keystone, SD 57751

12989 Old Hill City Road

Keystone, SD 57751

12990 Old Hill City Road

Keystone, SD 57751

12995 Old Hill City Road

Keystone, SD 57751

13005 Old Hill City Road

Keystone, SD 57751

13007 Old Hill City Road

Keystone, SD 57751

13009 Old Hill City Road

Keystone, SD 57751

13011 Old Hill City Road

Keystone, SD 57751

13012 Echo Valley Court

Keystone, SD 57751

13013 Old Hill City Road

Keystone, SD 57751

13015 Old Hill City Road

Keystone, SD 57751

13015 Old Hill City Road

Keystone, SD 57751

13015 Old Hill City Road

Keystone, SD 57751

13025 Old Hill City Road

Keystone, SD 57751

13048 Old Hill City Road

Keystone, SD 57751

1305 Madill Street

Keystone, SD 57751

13050 Highway 244

Keystone, SD 57751

13064 Highway 244

Keystone, SD 57751

13110 Grizzly Gulch Road

Keystone, SD 57751

1315 Old Hill City Road

Keystone, SD 57751

13205 Greyhound Gulch Road

Keystone, SD 57751

13211 Greyhound Gulch Road

Keystone, SD 57751

13215 Greyhound Gulch Road

Keystone, SD 57751

13225 Greyhound Gulch Road

Keystone, SD 57751

13272 Greyhound Gulch Road

Keystone, SD 57751

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