11568 Zip Code (Old Westbury, New York) Profile homes, apartments, schools, population,
11568 Zip Code (Old Westbury, New York) Profile homes, apartments, schools, population, . List of zipcodes in old westbury, new york. The population is 3,858, making 11568 the largest zipcode in old westbury. City Name OLD WESTBURY, NY New York United States ZIP Code 5 Plus 4 ️ from ny.postcodebase.com Zip code population in 2000:. Old westbury, ny (95.30%), brookville, ny (0.79%) county: Old westbury, new york zip code map & detailed.