WEBMap No.: 20110629-03-DK Map Date: 06/29/11 Sources: U.S. Census Bureau, 2010. READ, DBEDT, 2011. City and County of Honolulu ... Counties of Kauai, Maui, and Hawaii 2010 Census Tracts Population Density per square mile Under 400 401 - 2,500 2,500 - 6,000 6,001 - 12,000 Over 12,000 No Population State avg. population density: 211.8 Maui County avg.