Although not an incorporated municipality, the Village of Friendship Heights was established as a Special Tax District in 1914. Its boundaries—Wisconsin Avenue, Willard Avenue, and Somerset Terrace (with Little Falls Branch)—enclose 34 acres (140,000 m2) and is almost entirely occupied by high-rise residential buildings. It has the highest population density of any census-designated place or city in the United States. In fact, its density exceeds that of the New York City borough of Manhattan, which itself is coextensive with the United States' most dense county."Population Density", Geographic Information Systems – GIS of Interest. Accessed June 30, 2009. "What I discovered is that out of the 3140 counties listed in the Census population data only 178 counties were calculated to have a population density over one person per acre. Not surprisingly, New York County (which contains Manhattan) had the highest population density with a calculated 104.218 persons per acre." The 2010 population of Friendship Village Heights was 4,698, giving it a population density of 88,432 per square mile, versus Manhattan's approximate 70,000.
Although not an incorporated municipality, the Village of Friendship Heights was established as a Special Tax District in 1914. Its boundaries—Wisconsin Avenue, Willard Avenue, and Somerset Terrace (with Little Falls Branch)—enclose 34 acres (140,000 m2) and is almost entirely occupied by high-rise residential buildings. It has the highest population density of any census-designated place or city in the United States. In fact, its density exceeds that of the New York City borough of Manhattan, which itself is coextensive with the United States' most dense county."Population Density", Geographic Information Systems – GIS of Interest. Accessed June 30, 2009. "What I discovered is that out of the 3140 counties listed in the Census population data only 178 counties were calculated to have a population density over one person per acre. Not surprisingly, New York County (which contains Manhattan) had the highest population density with a calculated 104.218 persons per acre." The 2010 population of Friendship Village Heights was 4,698, giving it a population density of 88,432 per square mile, versus Manhattan's approximate 70,000.