Brown County, SD
37,972 residents · 1,713 sq mi · 22.2/sq mi · 27% rural
About Brown County
Brown County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 38,301, making it the fourth most populous county in South Dakota, and was estimated to be 37,495 in 2024. Its county seat is Aberdeen. The county is named for Alfred Brown, of Hutchinson County, South Dakota, a Dakota Territory legislator in 1879.
Prepper Assessment
Living in this area offers a mix of rural charm and practical homesteading opportunities. The terrain is primarily flat with some rolling hills, making it suitable for various agricultural activities. The climate features an annual mean temperature of 43.2°F and an average of 21.9 inches of rainfall per year, supporting a growing season consistent with USDA zone 6a. However, the winters can be harsh, with lows around 2.5°F, which may limit year-round gardening and outdoor activities.
This county faces several notable natural hazards, particularly severe winter weather, which ranks high on FEMA's scale at 98. Cold waves and hail also pose risks, with rankings of 96 and 86, respectively. The population density is relatively low at 22.2 people per square mile, contributing to a lower violence percentile of 14, suggesting a safer environment. However, the median home price of $200,400 might be a barrier for some potential homesteaders, especially when combined with an effective property tax rate of 1.25%.
This location may be well-suited for individuals or families who can adapt to a colder climate and are prepared for winter challenges. Those with experience in cold-weather farming or who prioritize safety and lower population density may thrive here. However, prospective homesteaders seeking a milder climate or year-round growing conditions might find this area less appealing due to its harsh winters and limited growing season.