Hunt & Live

Jefferson County, ID

33,428 residents · 1,094 sq mi · 30.6/sq mi · 67% rural

Climate
43.5°F
9.8" rain/yr
Water
semi-arid
Aridity index 0.52
Hardiness
Zone 6b
Winter low ~-0.3°F

About Jefferson County

Jefferson County is a county located in the U.S. state of Idaho. As of the 2020 Census, the county's population was 30,891. The county seat and largest city is Rigby. The county was established in 1913 and named after Thomas Jefferson, the third U.S. President. Jefferson County is part of the Idaho Falls metropolitan area.

71
Prepper Suitability
worsebetter
National rank: #489 of 3,109
Locator map
Location within the continental US

Prepper Assessment

Living in this area offers a mix of semi-arid terrain with an annual mean temperature of 43.5°F. The growing season is moderate, supported by USDA zone 6b, which allows for a variety of crops. However, the region receives only 9.8 inches of rainfall annually, presenting challenges for self-sufficient agriculture. The rural character, with 67% of the population living outside urban areas, enhances the potential for homesteading but may limit access to some resources.

Natural hazards are notable in this area, with winter weather (FEMA rank 83) and cold waves (82) presenting significant risks, along with earthquakes (81) and heat waves (79). The county's violence percentile is at 39, indicating a relatively lower risk of violence compared to other regions. However, the median home price of $284,700 may be a barrier for some aspiring homesteaders, especially in light of a median household income of $77,491.

This county may suit individuals or families seeking a rural lifestyle with some self-sufficiency potential, particularly those who can navigate the challenges of farming in a semi-arid climate. However, those who are sensitive to extreme weather conditions or require constant access to urban amenities may find it less appealing. The effective property tax rate of 0.56% is a positive aspect for potential homeowners looking to invest in the area.

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

Key Facts

Ranked #884 nationally
Out of 3,109 CONUS counties for composite prepper suitability.
#19 of 44 in ID
Ranked #19 of 44 counties statewide for prepper suitability.
Dominant hazard: winter weather
FEMA ranks winter weather risk at 83/100 here — the leading natural threat.
Rural-suburban mix
30.6 people per square mile.
Climate profile
Classified as semi-arid with a 43.5°F annual mean and 9.8" of annual precipitation. USDA hardiness zone 6b.
Housing & taxes
Median home value $284,700.

Score Breakdown

Violence
8
percentile (lower = safer)
Disasters
40
percentile (lower = safer)
Density
39
percentile (lower = emptier)
Overall FEMA Risk
40.1
NRI composite (0-100)

Natural Hazard Profile (FEMA NRI)

Avalanche 2
Cold Wave 82
Drought 22
Earthquake 81
Hail 21
Heat Wave 79
Riverine Flood 37
Ice Storm 11
Landslide 35
Lightning 55
Strong Wind 12
Tornado 7
Volcano 58
Wildfire 63
Winter Weather 83

Monthly Climate (1991–2020 normals)

Average temperature
JFMAMJ JASOND
Monthly precipitation (inches)
JFMAMJ JASOND
Summer high
86.7°F
Winter low
9.7°F
Heating degree days
8,111
Cooling degree days
315

Housing & Economy

Median home value
$284,700
Median HH income
$77,491
Price to income
3.7×
Property tax rate
0.56%
~$1,596/yr median

Community Profile

Median age
31.7
Homeownership
82.4%
Poverty rate
8.9%
Unemployment
2.4%

Connectivity

Broadband households
72.8%
No internet access
4.5%

Explore Jefferson County Further

Similar Counties

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.