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  5. Area Code 315

Where Is Area Code 315?

Area code 315 is found in the US state of New York. Primarily servicing the city of Syracuse (population: 229713), area code 315 covers 18 counties of New York.

Located in the Eastern time zone, area code 315 is on the same time as New York, NY.

Area code 315 was brought into effect on January 1, 1947.

Map of  with area code 315 highlighted

Counties in Area Code 315

  • Cayuga,
  • Chenango,
  • Herkimer,
  • Jefferson,
  • Lewis,
  • Madison,
  • Oneida,
  • Onondaga,
  • Ontario,
  • Oswego,
  • Otsego,
  • Saint Lawrence,
  • Seneca,
  • Wayne,
  • Yates.

Most Populous Cities in Area Code 315

City County City Population Time Zone
Syracuse Onondaga 229,713 EST
Utica Oneida 71,410 EST
Liverpool Onondaga 52,259 EST
Watertown Jefferson 49,578 EST
Rome Oneida 42,794 EST
Auburn Cayuga 40,994 EST
Oswego Oswego 37,080 EST
Baldwinsville Onondaga 31,625 EST
Fulton Oswego 24,847 EST
Geneva Ontario 20,190 EST
Cicero Onondaga 17,530 EST
Potsdam Saint Lawrence 16,688 EST
Massena Saint Lawrence 16,624 EST
Ogdensburg Saint Lawrence 16,494 EST
New Hartford Oneida 16,045 EST
Manlius Onondaga 15,560 EST
Camillus Onondaga 15,545 EST
East Syracuse Onondaga 14,986 EST
Oneida Madison 13,942 EST
Newark Wayne 13,859 EST
Penn Yan Yates 12,817 EST
Canastota Madison 12,605 EST
Fayetteville Onondaga 12,385 EST
Whitesboro Oneida 11,530 EST
Ontario Wayne 11,484 EST

Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.

View all United States Area Codes.

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This page was last updated on July 3, 2015.