Hammond is a town in St. Lawrence County, New York, home to about 1,683 people across 62 square miles. Its ZIP codes are 13623 and 13646, and parts of 13679 are in Hammond too.
Homes sold for a median of $213 per square foot in the three months ending August 2026, a buyer’s market.
All in Hammond
Mostly Hammond; also Morristown and Rossie
Mostly Alexandria; part is in Hammond
Each card is that ZIP code’s whole market, including any part outside Hammond. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Hammond’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)95 miles away |
|---|---|
| Closer regional airport | Ogdensburg International Airport (OGS)19 miles away |
| Nearest city of 250,000+ | Buffalo, NY192 miles away |
| Nearest city of 1 million+ | New York, NY276 miles away |
Straight-line distances from the center of Hammond; 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.
Hammond had 1,258 residents in the 2020 census, up 4% since 2000.
It’s the 727th largest of 1,007 towns in New York by population.
St. Lawrence County grew from 89,083 residents in 1900 to 108,505 in 2020.
St. Lawrence County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 79°F in summer, and winter lows average 5°F. About 39.9 inches of rain and melted snow fall in a typical year, with about 92 inches of snow.
Source: NOAA 1991–2020 climate normals, Gouverneur 3 Nw, NY weather station (10 miles away).
26,395 jobs at 1,826 businesses in St. Lawrence County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Hammond’s ZIP codes.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|
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 (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 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.
Public schools here are run by Hammond Central School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Hammond Central SchoolHammond | Pre-K–12 | 225 | Public | 1.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Alexandria, Morristown, Theresa, Rossie and Macomb.
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.