Hunt & Live

St. Mary's County, MD

114,877 residents · 359 sq mi · 320.4/sq mi · 57% rural

Climate
57.4°F
45.3" rain/yr
Water
humid
Aridity index 1.63
Hardiness
Zone 8b
Winter low ~17.4°F

About St. Mary's County

St. Mary's County, established in 1637, is a county located in the U.S. state of Maryland. As of the 2020 census, the population was 113,777. Its county seat is Leonardtown. The name is in honor of Mary, the mother of Jesus. St. Mary's County is part of the Lexington Park, MD Metropolitan Statistical Area, which also is included in the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area. It is part of the Southern Maryland region.

54
Prepper Suitability
worsebetter
National rank: #1257 of 3,109
Locator map
Location within the continental US

Prepper Assessment

Living in this area offers a mix of rural charm and suburban convenience, with a population density of 320.4 people per square mile and 57% of the county being rural. The climate is classified as humid with an annual mean temperature of 57.4°F and an average of 45.3 inches of rain per year, supporting a growing season suitable for various crops. However, the USDA zone 8b indicates that gardeners should be prepared for potential heat during the summer, with highs reaching 87.8°F.

Natural hazards pose significant risks in this region, with hurricanes ranked at FEMA 85 and droughts at 72, indicating vulnerability to extreme weather events. The area also faces challenges from heat waves (67) and strong winds (65), which may impact self-sufficiency efforts. The median home price of $376,900 could be a barrier for those seeking affordable land, while the relatively high population density may not appeal to those looking for extreme remoteness.

This county may suit individuals or families who appreciate a balance of rural lifestyle and access to urban amenities, as evidenced by a 79% broadband subscription rate. However, those seeking a more isolated homesteading experience might find it less appealing due to its population density and housing costs. The hidden gem here is the county's robust infrastructure, which could support a diverse range of self-sufficient activities for those willing to navigate the environmental risks.

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

Key Facts

Ranked #1,529 nationally
Out of 3,109 CONUS counties for composite prepper suitability.
#7 of 24 in MD
Ranked #7 of 24 counties statewide for prepper suitability.
Dominant hazard: hurricane
FEMA ranks hurricane risk at 85/100 here — the leading natural threat.
Urban: 320/sqmi
Densely populated at 320 people per square mile.
Climate profile
Classified as humid with a 57.4°F annual mean and 45.3" of annual precipitation. USDA hardiness zone 8b.
Housing & taxes
Median home value $376,900.

Score Breakdown

Violence
9
percentile (lower = safer)
Disasters
42
percentile (lower = safer)
Density
87
percentile (lower = emptier)
Overall FEMA Risk
42.6
NRI composite (0-100)

Natural Hazard Profile (FEMA NRI)

Coastal Flood 63
Cold Wave 29
Drought 72
Earthquake 57
Hail 34
Hurricane 85
Heat Wave 67
Riverine Flood 37
Ice Storm 54
Landslide 51
Lightning 56
Strong Wind 65
Tornado 39
Wildfire 59
Winter Weather 58

Monthly Climate (1991–2020 normals)

Average temperature
JFMAMJ JASOND
Monthly precipitation (inches)
JFMAMJ JASOND
Summer high
87.8°F
Winter low
27.4°F
Heating degree days
4,053
Cooling degree days
1,328

Housing & Economy

Median home value
$376,900
Median HH income
$113,668
Price to income
3.3×
Property tax rate
0.89%
~$3,355/yr median

Community Profile

Median age
37
Homeownership
72.5%
Poverty rate
7.6%
Unemployment
3.5%

Connectivity

Broadband households
79.2%
No internet access
8.3%

Explore St. Mary's 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.