Hunt & Live

Decatur County, IA

7,683 residents · 532 sq mi · 14.4/sq mi · 100% rural

Climate
50.7°F
37.9" rain/yr
Water
humid
Aridity index 1.6
Hardiness
Zone 7a
Winter low ~4.1°F

About Decatur County

Decatur County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 7,645. The county seat is Leon. This county is named for Stephen Decatur Jr., a hero in the War of 1812.

76
Prepper Suitability
worsebetter
National rank: #313 of 3,109
Locator map
Location within the continental US

Prepper Assessment

Living in this area offers a mix of rural charm and practical land use opportunities. The county's 532 square miles with a population density of 14.4 people per square mile provides ample space for self-sufficient living. The climate, characterized by an annual mean temperature of 50.7°F and 37.9 inches of rain per year, supports a growing season suitable for various crops, particularly in USDA zone 7a. However, the region's humid conditions may require careful water management.

Risks in this area include a high vulnerability to drought, ranked 94 by FEMA, which could impact farming and water supply. Other notable hazards are landslides (rank 73) and heat waves (rank 64), which could pose challenges during extreme weather events. While the violence percentile is relatively low at 27, indicating a safer environment, the rural setting may limit access to amenities and services, which could affect overall quality of life.

This county is a good fit for individuals or families seeking a quiet, rural lifestyle with opportunities for homesteading and farming. People who thrive here are likely to be self-sufficient, adaptable, and prepared for the challenges posed by natural hazards. However, those who rely heavily on urban conveniences or are unprepared for the risks associated with drought and extreme weather may find this area less suitable for their needs.

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

Key Facts

Top 8% nationally
National prepper rank: #247 of 3,109.
#12 of 99 in IA
Ranked #12 of 99 counties statewide for prepper suitability.
Dominant hazard: drought
FEMA ranks drought risk at 94/100 here — the leading natural threat.
Sparse population
14.4 people per square mile — well below the CONUS average.
Climate profile
Classified as humid with a 50.7°F annual mean and 37.9" of annual precipitation. USDA hardiness zone 7a.
Housing & taxes
Median home value $97,000.

Score Breakdown

Violence
26
percentile (lower = safer)
Disasters
23
percentile (lower = safer)
Density
23
percentile (lower = emptier)
Overall FEMA Risk
23.6
NRI composite (0-100)

Natural Hazard Profile (FEMA NRI)

Cold Wave 55
Drought 94
Earthquake 19
Hail 48
Hurricane 9
Heat Wave 64
Riverine Flood 16
Ice Storm 23
Landslide 73
Lightning 17
Strong Wind 41
Tornado 48
Wildfire 52
Winter Weather 17

Monthly Climate (1991–2020 normals)

Average temperature
JFMAMJ JASOND
Monthly precipitation (inches)
JFMAMJ JASOND
Summer high
85.5°F
Winter low
14.1°F
Heating degree days
6,152
Cooling degree days
974

Housing & Economy

Median home value
$97,000
Median HH income
$56,068
Price to income
1.7×
Property tax rate
1.88%
~$1,828/yr median

Community Profile

Median age
36.6
Homeownership
67.2%
Poverty rate
14.5%
Unemployment
4.2%

Connectivity

Broadband households
66.7%
No internet access
13.6%

Explore Decatur 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.