By density

Neil Freeman, 2006-14
database
dimensions vary

This tool uses US Census 2010 data to illustrate the population density in the United States. The database contains population density data for all 3,143 counties and county equivalents, all 74,106 census tracts and all 218,148 block groups.

Use the form to generate a table and a chart showing population density patterns.

geography required
classing method required
units
number of intervals
density range optional, equal interval only
to
confine to a state optional, equal interval only

Densest

Geography Name Pop. Area in sq mi (sq km) Density in pp sq mi (sq km)
block group block group 1, tract 307.02, Cook County, Illinois 978 0.0016 (0.0042) 600,809 (231,973)
census tract tract 307.02, Cook County, Illinois 1,630 0.0032 (0.0082) 508,698 (196,409)
county New York County (Manhattan), New York 1,585,873 22.6 (58.7) 69,971 (27,016)

Median Density

(half the population lives in is denser places, half is less dense places)

Geography Name Pop. Area in sq mi (sq km) Density in pp sq mi (sq km)
block group block group 2, tract 319, Schenectady County, New York 5,231 1.01 (2.61) 2,510 (969)
census tract tract 3452.01, New Haven County, Connecticut 7,065 3.34 (8.64) 2,117 (818)
county McHenry County, Illinois 308,760 603 (1,562) 512 (1,326)

Least Dense

Geography Name Pop. Area in sq mi (sq km) Density in pp sq mi (sq km)
block group block group 4, tract 9507, Aroostook County, Maine 10 2,629 (6,810) 0.0038 (0.0015)
census tract tract 9801, Sevier County, Tennessee 1 186 (481) 0.0054 (0.0021)
county Yukon-Koyukuk Census Area, Alaska 5588 14,5505 (376,856) 0.0362 (0.0140)