Bellmore is a hamlet and census-designated place (CDP) in Nassau County, New York, United States. The population according to the 2010 census was 16,218. Bellmore is located on the south shore of Long Island 5 miles from Jones Beach State Park, approximately 27 mi east of Manhattan, and 10 mi east of the Nassau-Queens (New York City) Line.
The population of Bellmore in 2010 was more than 20,000.
It's definitely incorrect because ti was 16,218 which is less than 20,000. The system seems to have difficulty making direct number comparisons at times, so that's why it got it wrong I guess.