There are 23 zip codes in Oswego County, New York. The most populated is 13126, located in Oswego. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
1312636,278Oswego
1306923,378Fulton
130369,020Central Square
131147,397Mexico
131356,296Phoenix
131426,044Pulaski
130744,453Hannibal
131323,495Pennellville
131313,115Parish
130443,026Constantia
131672,982West Monroe
130762,416Hastings
134932,205Williamstown
130422,012Cleveland
130831,989Lacona
131451,595Sandy Creek
133021,377Altmar
131441,323Richland
13028809Bernhards Bay
13437307Redfield
13103226Mallory
13115225Minetto
13121New Haven
showing: 23 rows

Zip Codes in Oswego County, New York by Population (2024)