Smith Island is a community in Somerset County, Maryland, home to about 345 people across 4.3 square miles. Its ZIP codes are 21824 and 21866.
Homes sold for a median of $83 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Each card is that ZIP code’s whole market, including any part outside Smith Island. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Smith Island’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Smith Island well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Norfolk International Airport (ORF)76 miles away |
|---|---|
| Closer regional airport | Salisbury Ocean City Wicomico Regional Airport (SBY)37 miles away |
| Nearest city of 250,000+ | Washington, DC82 miles away |
| Nearest city of 1 million+ | Philadelphia, PA147 miles away |
Straight-line distances from the center of Smith Island; 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.
Smith Island had 202 residents in the 2020 census, down 45% since 2000.
It’s the 411th largest of 527 towns in Maryland by population.
Somerset County grew from 25,923 residents in 1900 to 24,620 in 2020.
Somerset County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 30°F. About 46.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, St Inigoes Webster Nolf, MD weather station (24 miles away).
4,141 jobs at 360 businesses in Somerset 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.
Buying or selling around Smith Island? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
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.