Liverpool real estate. Liverpool, NY is a village located in Onondaga County New York. The population was 2,505 at the 2000 census. The village is in the western part of the town of Salina and is northwest of Syracuse, of which it is a suburb.It takes up most of the northeastern bank of Onondaga Lake. Onondaga Lake Park is one of the most prominent locales in Liverpool, known for its several trams that travel the lengh of the park. It attracts over one million visitors each year.