Hunt & Live

Sweetwater County, WY

41,345 residents · 10,427 sq mi · 4.0/sq mi · 11% rural

Climate
42.3°F
9.5" rain/yr
Water
semi-arid
Aridity index 0.53
Hardiness
Zone 6b
Winter low ~-0.4°F

About Sweetwater County

Sweetwater County is a county in southwestern Wyoming, United States. As of the 2020 United States census, the population was 42,272, making it the fourth-most populous county in Wyoming. Its county seat is Green River. By area, it is the largest county in Wyoming. Its southern boundary line abuts the north lines of the states of Colorado and Utah. Sweetwater County comprises the Rock Springs, Green River, Wyoming Micropolitan Statistical Area.

71
Prepper Suitability
worsebetter
National rank: #469 of 3,109
Locator map
Location within the continental US

Prepper Assessment

Living in this area offers a vast landscape with a low population density of 4.0 people per square mile, which may appeal to those seeking remoteness. The climate is semi-arid, with an annual mean temperature of 42.3°F and only 9.5 inches of rainfall per year, which can limit traditional crop growing but may support certain drought-resistant plants. The growing season is relatively short, so self-sufficient living may require careful planning and adaptation to the local climate conditions.

The county faces several natural hazards, with landslide risk ranked at 91 and winter weather at 86, indicating significant challenges during colder months. Wildfire and earthquake risks are also notable, both ranked at 66. Although the area has a low violence percentile of 93, which suggests a safer environment, the overall cost of living is moderate, with a median home price of $240,300. Prospective residents should weigh these factors against their preparedness and resilience.

This county may suit individuals or families who value wide-open spaces and are willing to adapt to a semi-arid climate. Those with skills in alternative agriculture or who can manage limited water resources might thrive here. Conversely, individuals reliant on conventional farming or those unprepared for harsh winters may find the conditions challenging. The hidden gem here is the low property tax rate of 0.59%, which could be advantageous for long-term sustainability.

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

Key Facts

Ranked #1,172 nationally
Out of 3,109 CONUS counties for composite prepper suitability.
#15 of 23 in WY
Ranked #15 of 23 counties statewide for prepper suitability.
Dominant hazard: landslide
FEMA ranks landslide risk at 91/100 here — the leading natural threat.
Extremely rural
Only 4.0 people per square mile — fewer than 5/sqmi places you in the bottom 5% nationally for density.
Climate profile
Classified as semi-arid with a 42.3°F annual mean and 9.5" of annual precipitation. USDA hardiness zone 6b.
Housing & taxes
Median home value $240,300.

Score Breakdown

Violence
46
percentile (lower = safer)
Disasters
30
percentile (lower = safer)
Density
9
percentile (lower = emptier)
Overall FEMA Risk
30.6
NRI composite (0-100)

Natural Hazard Profile (FEMA NRI)

Avalanche 13
Cold Wave 58
Drought 20
Earthquake 66
Hail 14
Riverine Flood 52
Ice Storm 16
Landslide 91
Lightning 56
Strong Wind 10
Tornado 9
Wildfire 66
Winter Weather 86

Monthly Climate (1991–2020 normals)

Average temperature
JFMAMJ JASOND
Monthly precipitation (inches)
JFMAMJ JASOND
Summer high
84.1°F
Winter low
9.6°F
Heating degree days
8,461
Cooling degree days
221

Housing & Economy

Median home value
$240,300
Median HH income
$79,375
Price to income
Property tax rate
0.59%
~$1,411/yr median

Community Profile

Median age
37.1
Homeownership
73.4%
Poverty rate
11.7%
Unemployment
5.7%

Connectivity

Broadband households
70.2%
No internet access
7.6%

Explore Sweetwater 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.