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Onondaga County is a county in the U.S. state of New York. As of the 2020 census, the population was 476,516. The county seat is Syracuse. The county is part of the Central New York region of the state.
  • Country: United States
  • State: New York
  • Founded: 1794
  • Named for: Onondaga people
  • Seat: Syracuse
  • Largest city: Syracuse
  • Congressional district: 22nd

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Data from: en.wikipedia.org