 williamson is an upstate new york town on the south shore of lake ontario in the northwest part of wayne county, new york, in the united states. the population was 6,777 at the time of the 2000 census. the town is named after charles williamson, a land agent of the pultney estate. its zip code is 14589, and telephone exchanges 589 and 904 in area code 315. ==history== the area around pultneyville â a hamlet on the town's lake ontario shore â was a frequent meeting ground for iroqouis peop
1802_establishments_in_New_York Rochester,_New_York_metropolitan_area Towns_in_New_York Towns_in_Wayne_County,_New_York