St. Mary’s County, MD Homes for Sale & Real Estate
Explore homes for sale in St. Mary’s County, Maryland, from established neighborhoods and newer communities to waterfront properties, luxury homes and rural acreage.
Discover homes in Leonardtown, Hollywood, California, Lexington Park, Great Mills, Mechanicsville and Piney Point. Whether you’re relocating to NAS Patuxent River or searching for your next home in Southern Maryland, explore local communities and current real estate listings.
Maryland’s Mother County, Surrounded by Water.
St. Mary’s County forms the southern tip of Southern Maryland, with the Patuxent River to the northeast, the Chesapeake Bay to the east and the Potomac River along its southern and western shore.
It is also where Maryland began: the colony was founded at St. Clement’s Island in 1634, and St. Mary’s City became its first capital.
Today daily life follows two main corridors—Route 235 through Hollywood, California and Lexington Park, and Route 5 through Mechanicsville and Leonardtown toward Point Lookout. Naval Air Station Patuxent River, the region’s largest employer, sits at the center of the county’s community and economy.
St. Mary’s County offers a unique mix of waterfront living, established neighborhoods, rural properties and convenient communities, with extensive access to boating, fishing, beaches, parks and waterfront recreation.
Homes for sale in St. Mary’s County range from established neighborhoods and newer communities to rural acreage, luxury homes, waterfront properties and homes near NAS Patuxent River—in communities such as Leonardtown, Hollywood, California, Lexington Park, Great Mills, Piney Point and Mechanicsville.
From the Pax River Corridor to the Historic South.
Where you live in St. Mary’s shapes your commute, your access to the water and the pace of everyday life. Here’s how the county’s main communities compare.
- Pax River Corridor
Lexington Park
Just outside NAS Patuxent River, Lexington Park offers a wide range of housing close to base—townhomes, established single-family neighborhoods and newer communities—with shopping, dining and services along Route 235. For neighborhoods, commutes and everyday life near the base, see our Lexington Park & California relocation guide.
- Pax River Corridor · Patuxent River
California
North of Lexington Park on Route 235, California combines convenient shopping and dining with newer neighborhoods and waterfront along the Patuxent. It sits close to both the base and the Thomas Johnson Bridge to Solomons.
- Northern Corridor · Patuxent River
Hollywood
Rolling farmland, larger lots and homes near the Patuxent River give Hollywood a quieter, rural feel—while California, the base and everyday amenities remain a short drive away.
- County Seat · Breton Bay
Leonardtown
The historic county seat, with a walkable downtown of local shops and restaurants, a waterfront park on Breton Bay and community events like First Fridays. Homes range from in-town neighborhoods to surrounding rural and waterfront properties.
- Central St. Mary’s
Great Mills
A quieter community with a rich history, close to Lexington Park and to St. Mary’s River State Park, where residents enjoy hiking, fishing and kayaking.
- Northern St. Mary’s
Mechanicsville & Charlotte Hall
Established neighborhoods, newer homes, rural properties and homes with larger lots and acreage, in an area also known for its Amish farms and businesses. Route 5 connects the northern county with Leonardtown, Charles County and commuter routes toward Washington, D.C.
- Southern St. Mary’s · Potomac River
Piney Point, St. Mary’s City & Point Lookout
The southern county is defined by the water and its history: Potomac River communities such as Piney Point, historic St. Mary’s City on the St. Mary’s River, and Point Lookout State Park at the tip, where the Potomac meets the Chesapeake Bay.
Also in St. Mary’s: Ridge, Scotland, Valley Lee, Tall Timbers, Bushwood and more. Just across the Thomas Johnson Bridge, Solomons and Lusby are part of Calvert County.
Three Great Waters. Hundreds of Miles of Shoreline.
With roughly 500 miles of shoreline, St. Mary’s County offers some of Southern Maryland’s most diverse waterfront real estate. Each body of water has its own character—and not every home near the water has frontage, a pier or boating access.
Patuxent River
The county’s northeastern shore, from Hollywood and California down toward the base—riverfront homes and protected creeks.
Chesapeake Bay
Open-water views along the eastern shore, reaching south to Point Lookout.
Potomac River
A wide river along the southern and western county, from Piney Point and Tall Timbers to the communities upriver.
St. Mary’s River
Past historic St. Mary’s City, with coves and creeks in the southern county.
Breton Bay & the Creeks
Breton Bay at Leonardtown, St. Clement’s Bay and many creeks and coves throughout the county.
Waterfront purchases can involve additional considerations including pier permits, water depth, shoreline conditions, flood zones, septic systems, erosion, and boating access.
Homes for Sale in St. Mary’s County
Search every active St. Mary’s County listing, or start with waterfront homes along the Patuxent, the Potomac and the county’s creeks and coves.
Real estate values can vary considerably based on location, acreage, community, proximity to NAS Patuxent River, waterfront access, property condition, and other features. Each search opens our live MLS listings.
Search All St. Mary’s County Homes for Sale
Homes near NAS Patuxent River, established neighborhoods, newer communities, acreage and luxury properties.
St. Mary’s County Waterfront Homes
Patuxent, Potomac and creekfront properties, including homes near NAS Patuxent River.
Also considering nearby? Explore Calvert County or Charles County.
Featured Listings
Explore featured homes for sale across Southern Maryland, including waterfront properties, residential homes, acreage, and other listings throughout Calvert, St. Mary’s, and Charles Counties.
What Our Clients Say
Living Near NAS Patuxent River.
Naval Air Station Patuxent River (NAS Pax River) is the region’s largest employer and a major part of the St. Mary’s County housing market.
Military members, civilian employees, contractors and families relocating here often consider Lexington Park, California, Great Mills, Hollywood and Leonardtown, weighing commute, housing, schools and lifestyle.
Commute
The main gate is off Great Mills Road (Route 246) in Lexington Park. Distance, which gate you use and traffic along Route 235 all shape the daily drive—test the route at the times you’ll travel.
Timing
Report dates, financing and settlement need to line up—especially when you’re buying from another duty station.
Across the river
Some Pax River households also look across the Thomas Johnson Bridge to Solomons and Lusby in Calvert County.
Commute, Water, Space: Know What Matters Before You Search.
A home near the base, a rural property with acreage and a Potomac River waterfront home are very different searches. Start with how you’ll live here, then narrow by community.
Whether you’re buying your first home, relocating to NAS Patuxent River, searching for waterfront property or moving up, local knowledge and the right strategy make a significant difference.
Competition
Well-priced homes can attract multiple offers, particularly in desirable communities and areas convenient to NAS Patuxent River.
Inventory
Availability varies by community, property type and price range. A team that actively monitors the market helps you spot new opportunities quickly.
Local knowledge
From commute considerations around Pax River to waterfront, rural acreage, well and septic systems and established neighborhoods, local experience matters.
Selling Here Starts With Knowing Who Your Buyer Is.
Your buyer may be a local move-up family, a waterfront buyer from out of the area or a household relocating on PCS orders—each searches, finances and negotiates differently.
That’s why pricing and marketing a St. Mary’s County home starts with the specific property, its location and the buyers most likely to value it.
Pricing
Accurate pricing based on current St. Mary’s County market conditions helps generate buyer interest while protecting your home’s value.
Presentation & marketing
Professional photography, strategic marketing and digital exposure to reach local buyers as well as buyers relocating to Southern Maryland.
Negotiation
Experienced negotiation that protects your interests through inspections, appraisal, financing, repairs and closing.
Understand the Market Before You Make the Move.
Our Southern Maryland Housing Market Update looks at August 2026 data for Calvert, St. Mary’s and Charles counties. In St. Mary’s, both prices and sales increased from a year earlier, while months of supply edged down.
- $435,000Median sold pricevs. $410,000 · +6.1%
- 119Closed salesvs. 113 · +5.3%
- 331Active inventoryvs. 306 · +8.2%
- 2.3Months of supplyvs. 2.4
St. Mary’s County, August 2026 compared with August 2025. Source: Bright MLS. These figures describe that month only; conditions change, so ask us for the latest numbers for your community and price point.
See how October’s housing market compared with last year across Calvert, St. Mary’s and Charles counties, including inventory, closed sales, median sold prices and marketing time.
October 2026 Southern Maryland Housing Market Update — St. Mary’s CountyExplore the September housing market across St. Mary’s, Calvert and Charles counties, including home prices, inventory and closed sales.
Read the September Market UpdateBuilt Around Orders, Timelines and Families.
Two results for military households, and what one St. Mary’s County family said about working with our team.
Full-price offer in three days.
Facing PCS orders from NAS Patuxent River, the sellers received a full-price offer in three days—and we negotiated a two-month post-occupancy at no cost so the family could relocate without rushing.
- 3 daysTo a full-price offer
- 2 monthsPost-occupancy at no cost
Appraised $20K above the price.
A military buyer relocating to Southern Maryland purchased a home off-market with The Mark Frisco Team. The property appraised $20K above the purchase price, and the buyer received 4% closing assistance.
- $20KAbove purchase price
- 4%Closing assistance
“Since we were buying an older home that’s 126 years old, they were also incredibly knowledgeable and shared so many helpful tips and things to look out for.”
B. Jones · Charlotte Hall
Local Knowledge. Demonstrated Experience.
The Mark Frisco Team helps buyers and sellers throughout St. Mary’s County, Maryland, with local expertise in residential homes, waterfront properties, luxury real estate, land, and relocation. From Leonardtown and Hollywood to California, Lexington Park, Great Mills, and Piney Point, our team understands the communities, housing options, waterfront considerations, and market trends that make St. Mary’s County unique.
Choosing a team instead of an individual agent gives you multiple specialists working toward the same goal: pricing, marketing, buyer representation, negotiation, transaction management and closing—so every part of your move is covered.
- 1,200+Homes Sold
- #1CENTURY 21 Team in Maryland2024 & 2025
- #7CENTURY 21 Team in the U.S.2025
St. Mary’s County Real Estate FAQs
Are you experienced with homes near NAS Patuxent River?
Yes. The Mark Frisco Team has extensive experience helping buyers and sellers throughout St. Mary's County, including communities near NAS Patuxent River such as Lexington Park, California, Great Mills, Hollywood, and Leonardtown. We also assist military members, civilian employees, contractors, and families relocating to or from the area.
What makes your team different in St. Mary's County?
The Mark Frisco Team combines local St. Mary's County market knowledge with a team-based approach to buyer representation, marketing, negotiation, transaction management, and client care. Our experience includes residential homes, waterfront properties, luxury real estate, land, and military relocation.
Do you handle luxury and waterfront homes in St. Mary's County?
Yes. The Mark Frisco Team works with luxury and waterfront properties throughout St. Mary's County, including homes along the Patuxent River, Potomac River, Chesapeake Bay, St. Mary's River, Breton Bay, and surrounding creeks and coves. We help clients evaluate factors such as water depth, piers, shoreline conditions, flood zones, septic systems, and waterfront access.
What are some popular places to live in St. Mary's County?
St. Mary's County offers a variety of communities including Leonardtown, Hollywood, California, Lexington Park, Great Mills, Mechanicsville, and Piney Point. The right location depends on factors such as commute, housing style, acreage, waterfront access, and proximity to NAS Patuxent River.
What should I know about buying waterfront property in St. Mary's County?
Waterfront property in St. Mary's County can vary significantly depending on the body of water, water depth, shoreline, flood zone, pier access, permits, septic system, and boating conditions. The county includes waterfront homes along the Patuxent River, Potomac River, Chesapeake Bay, St. Mary's River, Breton Bay, and numerous creeks and coves. Working with an experienced waterfront real estate team can help buyers evaluate these factors before purchasing.
Do you help military families relocating to NAS Patuxent River?
Yes. The Mark Frisco Team assists military members, civilian employees, contractors, and families relocating to or from NAS Patuxent River. We help buyers compare communities, commute considerations, housing options, and other factors throughout St. Mary's County.
Who is a top real estate team in St. Mary's County, Maryland?
The Mark Frisco Team is a nationally ranked CENTURY 21 real estate team serving St. Mary's County and Southern Maryland. The team has helped more than 1,200 families buy and sell real estate and was ranked the #1 CENTURY 21 Team in Maryland in 2024 and 2025.
Find Your Place in Maryland’s Mother County.
Whether you’re buying, selling, relocating to Pax River or simply getting to know St. Mary’s County, start with a team that knows the communities, the water and the market.