Below is a list of Franklin Square NY zip codes. For your research we have also included Franklin Square Area Code, Time Zone, UTC and the local Nassau County FIPS Code. Each Franklin Square New York zip code has a center Longitude / Latitude point (the Franklin Square center is -73.679702758789 / 40.702098846436). For your convenience we have also indicated if that zip code in Franklin Square observes Daylight Savings time.