Oswego County, New York Zip Codes
📍 Oswego County has 27 zip codes with a population of 119,872.
Oswego County is located in New York with a land area of 1,000 square miles. The county seat is Oswego. Below you'll find all 27 zip codes in Oswego County with population, income and home value, the county's affordability profile, and links to its 27 city pages.
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
All Oswego County Zip Codes
| ZIP Code | City | Details |
|---|---|---|
| 13028 | Bernhards Bay | View → |
| 13036 | Central Square | View → |
| 13042 | Cleveland | View → |
| 13044 | Constantia | View → |
| 13064 | Fair Haven | View → |
| 13069 | Fulton | View → |
| 13074 | Hannibal | View → |
| 13076 | Hastings | View → |
| 13083 | Lacona | View → |
| 13093 | Lycoming | View → |
| 13103 | Mallory | View → |
| 13107 | Maple View | View → |
| 13114 | Mexico | View → |
| 13115 | Minetto | View → |
| 13121 | New Haven | View → |
| 13126 | Oswego | View → |
| 13131 | Parish | View → |
| 13132 | Pennellville | View → |
| 13135 | Phoenix | View → |
| 13142 | Pulaski | View → |
| 13144 | Richland | View → |
| 13145 | Sandy Creek | View → |
| 13167 | West Monroe | View → |
| 13302 | Altmar | View → |
| 13426 | Orwell | View → |
| 13437 | Redfield | View → |
| 13493 | Williamstown | View → |
Oswego County at a Glance
Oswego County has 27 ZIP codes in this directory: 27 standard delivery ZIPs. The 21 ZIPs with published Census housing data cover 119,872 residents, the largest being 13126 (Oswego) with 36,199 people.
The median ZIP in Oswego County has a household income of $71,172 and a home value of $137,500, a price-to-income ratio of 2.0, below the 2.9 New York ZIP median. Affordability ranges from 13042 in Cleveland at a ratio of 1.3 to 13132 in Pennellville, where the median home is $190,100. The highest median income is in 13042 (Cleveland) at $102,031. Median rent across these ZIPs is $979 a month.
83% of households in the typical Oswego County ZIP own their home (statewide ZIP median 80%). 19% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 15.0%, far above the 9.9% statewide ZIP median. Overall density is about 120 residents per square mile across 1,000 square miles of ZIP land area.
Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 New York ZIP Code Affordability Report.
Oswego County Zip Code Map
Interactive map of Oswego County, New York zip codes.