St. James is a community in Washington County, Maryland, home to about 4,824 people across 6.0 square miles. Its ZIP codes are 21733 and 21781, and parts of 21740 are in St. James too.
Homes sold for a median of $186 per square foot in the three months ending August 2026, a balanced market.
Mostly St. James; also Fairplay
All in St. James
Mostly Hagerstown; part is in St. James
Each card is that ZIP code’s whole market, including any part outside St. James. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up St. James’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Washington Dulles International Airport (IAD)48 miles away |
|---|---|
| Closer regional airport | Hagerstown Regional Richard A Henson Field (HGR)7 miles away |
| Nearest city of 250,000+ | Washington, DC62 miles away |
| Nearest city of 1 million+ | Philadelphia, PA141 miles away |
Straight-line distances from the center of St. James; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
St. James had 4,757 residents in the 2020 census, up 187% since 2000.
It’s the 207th largest of 527 towns in Maryland by population.
Washington County grew from 45,133 residents in 1900 to 154,705 in 2020.
Washington County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 22°F. About 43.6 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Hagerstown 1 E, MD weather station (3 miles away).
61,729 jobs at 3,417 businesses in Washington County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Parks (3 nearby)
Grocery stores (4 nearby)
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Shares ZIP codes with Hagerstown, Halfway, Maugansville, Wilson-Conococheague, Beaver Creek, Bagtown, Fairplay, Mount Aetna, Cearfoss, Kemps Mill and Fairview.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.