Jefferson County, MO
229,336 residents · 656 sq mi · 349.5/sq mi · 35% rural
About Jefferson County
Jefferson County is located in the eastern portion of the U.S. state of Missouri. It is a part of the St. Louis Metropolitan Area. As of the 2020 census, the population was 226,739, making it the sixth-most populous county in Missouri. Its county seat is Hillsboro. The county was organized in 1818 and named in honor of former president Thomas Jefferson. In 1980, according to the U.S. census held that year, the county contained the mean center of U.S. population. Notably, this was the first census in which the center of population was west of the Mississippi River. Jefferson County is part of the St. Louis Metropolitan Statistical Area and encompasses many of the city's southern suburbs.
Prepper Assessment
Living in this area offers a mix of suburban and rural environments, with a population density of 349.5 people per square mile. The climate is characterized by a humid subtropical zone (USDA zone 8a), with an annual mean temperature of 56.1°F and 43.8 inches of rainfall per year. While the summer highs can reach 88.7°F, the growing season is adequate for many crops, although the risk of strong winds and tornadoes may pose challenges for self-sufficient living.
This county faces several notable natural hazards, including strong winds (FEMA rank 99), tornadoes (95), and landslides (96), making it less ideal for those seeking a risk-free environment. The violence percentile is at 69/100, indicating a higher-than-average concern for safety, particularly in populated areas. Additionally, with a median home price of $202,500 and a relatively high population density, cost-of-living issues may deter some potential homesteaders.
Jefferson County could be a suitable fit for individuals or families who can adapt to the challenges posed by natural hazards and are comfortable with a suburban lifestyle. Those interested in a rural homestead may find the density and safety concerns less appealing. A key dealbreaker for many homesteaders might be the area's vulnerability to severe weather events, while the growing season and access to resources could be seen as hidden gems for those prepared to navigate these risks.