Martinsburg is a town in Lewis County, New York, home to about 1,189 people across 76 square miles. Its ZIP code is 13404, and parts of 13343 and 13367 are in Martinsburg too.
Homes sold for a median of $142 per square foot in the three months ending August 2026, a seller’s market.
All in Martinsburg
Mostly Watson; part is in Martinsburg
Mostly Lowville; part is in Martinsburg
Each card is that ZIP code’s whole market, including any part outside Martinsburg. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Martinsburg’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Syracuse Hancock International Airport (SYR)58 miles away |
|---|---|
| Closer regional airport | Watertown International Airport (ART)34 miles away |
| Nearest city of 250,000+ | Buffalo, NY184 miles away |
| Nearest city of 1 million+ | New York, NY228 miles away |
Straight-line distances from the center of Martinsburg; 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.
Martinsburg had 1,316 residents in the 2020 census, up 5% since 2000.
It’s the 835th largest of 1,007 towns in New York by population.
Lewis County grew from 27,427 residents in 1900 to 26,582 in 2020.
Lewis County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 78°F in summer, and winter lows average 8°F. About 42 inches of rain and melted snow fall in a typical year, with about 127 inches of snow.
Source: NOAA 1991–2020 climate normals, Lowville, NY weather station (4 miles away).
4,984 jobs at 506 businesses in Lewis County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
24 doctors and other health care providers list an office in Martinsburg.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|---|
| Mental health providers | 23 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Museums
Counts are within about 5.5 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 Lowville, New Bremen, Watson, Denmark, Webb, Harrisburg, Greig, Montague and Turin.
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.