Hunt & Live

Lyman County, SD

3,692 residents · 1,642 sq mi · 2.2/sq mi · 100% rural

Climate
47.6°F
21.3" rain/yr
Water
dry sub-humid
Aridity index 0.98
Hardiness
Zone 6b
Winter low ~-0.2°F

About Lyman County

Lyman County is a county located in the U.S. state of South Dakota. As of the 2020 census, the population was 3,718. Its county seat is Kennebec.

58
Prepper Suitability
worsebetter
National rank: #991 of 3,109
Locator map
Location within the continental US

Prepper Assessment

This area features a predominantly rural landscape with a low population density of 2.2 people per square mile, providing ample space for self-sufficient living. The climate is characterized by an annual mean temperature of 47.6°F and a growing season suitable for USDA zone 6b, allowing for diverse agricultural opportunities. However, with only 21.3 inches of rainfall per year, water management will be essential for gardening and livestock. The terrain can be challenging, particularly during winter months with temperatures dropping to an average low of 9.8°F.

Natural hazards pose some risk, with the county ranking in the 80th percentile for cold waves and 70th for both wildfires and winter weather. Although the area has a relatively low violence percentile of 54, the disaster percentile is in the 26th percentile, indicating a moderate level of risk from natural disasters. The median home price is $132,100, which is affordable compared to many regions, but the area’s dry sub-humid water classification means that drought could impact agricultural efforts, making water conservation crucial.

This county may appeal to individuals or families seeking a quiet, rural lifestyle with a strong focus on self-sufficiency and agriculture. Those with skills in managing the challenges of cold weather and drought may thrive here. However, individuals needing robust infrastructure, such as high-speed internet (only 58% broadband subscription), or those seeking urban conveniences may find this area less suitable. A potential dealbreaker for some could be the limited water availability, while the low cost of living and spacious land can be attractive to others.

AI-generated analysis based on county data (climate, hazards, density, housing, economy). For general orientation only.

Key Facts

Top 12% nationally
National prepper rank: #377 of 3,109.
#33 of 66 in SD
Ranked #33 of 66 counties statewide for prepper suitability.
Dominant hazard: cold wave
FEMA ranks cold wave risk at 80/100 here — the leading natural threat.
Extremely rural
Only 2.2 people per square mile — fewer than 5/sqmi places you in the bottom 5% nationally for density.
Climate profile
Classified as dry sub-humid with a 47.6°F annual mean and 21.3" of annual precipitation. USDA hardiness zone 6b.
Housing & taxes
Median home value $132,100.

Score Breakdown

Violence
94
percentile (lower = safer)
Disasters
26
percentile (lower = safer)
Density
5
percentile (lower = emptier)
Overall FEMA Risk
26.5
NRI composite (0-100)

Natural Hazard Profile (FEMA NRI)

Cold Wave 80
Drought 55
Earthquake 14
Hail 69
Heat Wave 23
Riverine Flood 29
Ice Storm 38
Landslide 22
Lightning 11
Strong Wind 16
Tornado 28
Wildfire 70
Winter Weather 70

Monthly Climate (1991–2020 normals)

Average temperature
JFMAMJ JASOND
Monthly precipitation (inches)
JFMAMJ JASOND
Summer high
88.2°F
Winter low
9.8°F
Heating degree days
7,200
Cooling degree days
884

Housing & Economy

Median home value
$132,100
Median HH income
$60,284
Price to income
2.2×
Property tax rate
1.17%
~$1,552/yr median

Community Profile

Median age
36
Homeownership
66.9%
Poverty rate
25.1%
Unemployment
5%

Connectivity

Broadband households
58.4%
No internet access
17.1%

Explore Lyman County Further

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Data sources. Prepper scores are national percentile ranks of firearm fatalities (County Health Rankings 2024 / CDC WONDER), FEMA National Risk Index 2023 composite disaster score, and population density (ACS 2022 + TIGER 2022 land area). Climate from NOAA nClimDiv 1991–2020 normals. Hardiness zone is estimated from climate data and may differ from the official USDA PHZM. Demographics and housing from Census ACS 5-year 2022. All scores are for comparison purposes only and do not constitute advice about where to live.