13604 Highway 40 is a 960 square foot house on a 2.91 acre lot with 2 bedrooms and 1 bathroom. Based on Redfin's Keystone data, we estimate the home's value is $392,460.
Single-familyProperty Type
1971Year Built
2.91 acresLot Size
$409Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$392,460
$1,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 20.3% lower than the average sale price ($492K) of 6 comparable homes.
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Earn from this home
Rent
$1,733/mo
Redfin rental estimate
List your home for rent
Market trends in 57751, SD
Last updated August 2026
Sale-to-List Price
100.0%
0.0% MoM
Median sale price
$1.2M
$517 MoM
Avg. days on market
73d
0 days MoM
Recently sold homes
1
0 MoM
Provided by Redfin
Sale history for 13604 Highway 40
Date
Event
Price
Public Records
Jun 1, 1993
Sold
$90,000
$94/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$3,794 (+11.5%)
$144,000 + $159,500
$303,500
2024
$3,402 (−3.9%)
$144,000 + $159,500
$303,500
2023
$3,541 (−16.4%)
$118,600 + $149,600
$268,200
2022
$4,236 (+27.9%)
$59,300 + $210,200
$269,500
2021
$3,312 (+11.1%)
$59,300 + $210,200
$269,500
2020
$2,981 (+0.5%)
$37,700 + $142,700
$180,400
2019
$2,967 (+28.1%)
$37,700 + $155,400
$193,100
2018
$2,315 (−5.4%)
$37,700 + $133,100
$170,800
2017
$2,448 (−6.1%)
$43,100 + $93,900
$137,000
2016
$2,607 (+0.5%)
$43,100 + $91,500
$134,600
2013
$2,594
$43,100 + $89,800
$132,900
Tax history for 13604 Highway 40
Year
Property tax
Land + Additions
Assessment*
2025
$3,794 (+11.5%)
$144,000 + $159,500
$303,500
2024
$3,402 (−3.9%)
$144,000 + $159,500
$303,500
2023
$3,541 (−16.4%)
$118,600 + $149,600
$268,200
2022
$4,236 (+27.9%)
$59,300 + $210,200
$269,500
2021
$3,312 (+11.1%)
$59,300 + $210,200
$269,500
2020
$2,981 (+0.5%)
$37,700 + $142,700
$180,400
2019
$2,967 (+28.1%)
$37,700 + $155,400
$193,100
2018
$2,315 (−5.4%)
$37,700 + $133,100
$170,800
2017
$2,448 (−6.1%)
$43,100 + $93,900
$137,000
2016
$2,607 (+0.5%)
$43,100 + $91,500
$134,600
2013
$2,594
$43,100 + $89,800
$132,900
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RR
Rural Residential District
Rural Residential establishes large-lot residential development in three areas: natural, agricultural, or surrounding open space.
Permitted uses
Include but are not limited to:
Housing-Single unit
Communications tower
Transportation
Dec 5, 2018 • Final
Co operating
Install a conventional heating and air conditioning system.
HVAC
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 1
Exterior
Exterior Information
Building Style Type: Ranch
Building Construction Quality: Fair
Building Type: Single Family
Property Information
Subdivision Name: SCHWEITZER SUB
Living Sq. Ft: 960
Building Sq. Ft: 960
Legal Description: SCHWEITZER SUBD, LOT 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 126,781
Legal Lot Number: 2
Acres: 2.9105
County Use Description: DWLNGS & AUTO GAR ON AG LAND
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 960
Stories: —
Lot Size: 2.91 acres
Style: Single Family Residential
Year Built: 1971
Year Renovated: —
County: Pennington County
APN: 49536
Home facts updated by county records on Jul 20, 2026
Around this home
Schools
Hermosa Elementary - 04
Public PreK-6 • Assigned • 7.5mi
5/10
Custer Middle School - 05
Public 7-8 • Assigned • 14.3mi
8/10
Custer High School - 01
Public 9-12 • Assigned • 14.3mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
5/10 Fire Factor
7% chance of being in a wildfire in next 30 years
2/10 Heat Factor
7 days above 92° expected this year, 17 days in 30 years
2/10 Wind Factor
Minor risk of severe winds over next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 4 days in 30 years
Provided by First Street
Historical weather
Keystone, SD • 57751
Average low and high temperatures (°F)
35
16
39
16
53
30
54
32
64
43
74
51
79
59
79
57
78
52
64
39
49
28
45
24
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.1 hours in
June and 4.8 hours in December, placing it above the
U.S. average for solar exposure.
10.1 hrs
4.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$373,000 – $452,000
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