St. Mary's County
MD · Pop. 114,372 · Mixed County
St. Mary's County is a mixed rural-suburban county in Maryland, spanning 359 square miles with 114,372 residents at a density of 318.6 people per square mile, a more developed setting where truly rural parcels are scarcer. The agricultural economy is rated moderate, built on soybeans, hay, corn. A median home price of $391,000 and an effective property tax rate of 0.87% set the cost of entry. The climate sits in USDA hardiness zone 8a with a 225-day growing season, average summer highs of 86.9°F and average winter lows of 30.4°F. Annual rainfall averages 46.7 inches, and with drought risk rated very high, water storage and irrigation planning matter. Medstar Saint Mary's Hospital is 7.8 miles away and includes an emergency room. Broadband reaches 96.7% of homes. On the hazard side, wildfire risk is high, drought risk is very high, so plan infrastructure and insurance accordingly.
Pros
- A long 225-day growing season in USDA zone 8a supports a wide range of crops and multiple plantings.
- A low effective property tax rate of 0.87% holds annual carrying costs down.
- Broadband reaches 96.7% of homes, making remote work and online farm sales realistic.
- Medstar Saint Mary's Hospital, with an emergency room, is just 7.8 miles away — strong local healthcare access.
- A low unemployment rate of 3.4% reflects a stable local job base.
Cons
- Drought risk is very high, making water storage and irrigation infrastructure essential rather than optional.
- A median home price of $391,000 raises the cost of entry relative to more affordable rural markets.
- At 318.6 people per square mile, this is a developed area where finding truly rural acreage is harder and pricier.
At a glance
St. Mary's County, MD is a mixed homesteading prospect — weigh the tradeoffs.
- Homestead score
- 46/100
- Median home price
- $391k
- Property tax
- 0.87%
- Growing season
- 225 days (zone 8a)
- Annual rainfall
- 46.7"
- Broadband
- 96.7%
- Nearest hospital
- Medstar Saint Mary's Hospital, 7.8 mi
Taxes & Cost of Living
Land & Building
Climate & Growing
Natural Disaster Risk
Healthcare
Infrastructure & Community
Business & Employment
Homesteading in St. Mary's County: FAQ
- What is the growing season like in St. Mary's County?
- St. Mary's County is in USDA hardiness zone 8a with a 225-day growing season, average summer highs of 86.9°F, and average winter lows of 30.4°F. The established crops are soybeans, hay, corn.
- How affordable is land and property here?
- The median home price is $391,000 and the effective property tax rate is 0.87%. Per-acre raw-land prices vary widely by parcel here, so check active listings for current rates.
- Is broadband internet available?
- Broadband reaches 96.7% of homes, strong coverage that supports remote work for most parcels.
- How close is healthcare?
- Medstar Saint Mary's Hospital is 7.8 miles away and includes an emergency room; there is 1 hospital in the county.
Explore Maryland Resources
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LandWatch
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Lands of America
The largest listing site for rural property — farms, ranches, hunting land, and timberland.
AcreTrader
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More counties in Maryland
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The closest counties to St. Mary's County by distance, including across state lines.
Data sources
Verified
Figures are sourced from public datasets: U.S. Census Bureau — ACS 5-year & Gazetteer, USDA NASS Census of Agriculture, USDA Plant Hardiness Zone Map, NOAA NCEI U.S. Climate Normals (1991–2020), FEMA National Risk Index, FCC Broadband Data Collection, BLS Local Area Unemployment Statistics, HIFLD Hospitals. Always confirm specifics locally before relying on them. See our methodology for how the homestead score is calculated.
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