US/3

The U.S. divided in thirds by population density


One third of the U.S. population lives in high density block groups, or no more than 0.34% of the total land area of the United States.1


population densities of over 4,705 people per square mile
One third of the U.S. population lives in medium density block groups, or no more than 1.32% of the total land area of the United States.1


population densities of 1,074 - 4,705 people per square mile
One third of the U.S. population lives in low density block groups, or as much as 98.34% of the total land area of the United States.1


population densities of under 1,074 people per square mile
Using the 2011-2015 American Community Survey 5-year Estimates, all U.S. Census block groups were sorted by population density and then divided in thirds with each third having approximately equal population of just over 105 million.
Below are how the high, medium and low density block groups are distributed between states.
Show: Charts Tables
States comprised of more

High Density

California

Pop: 38,421,464

New York

Pop: 19,673,174

Illinois

Pop: 12,873,761

New Jersey

Pop: 8,904,413

Massachusetts

Pop: 6,705,586

Arizona

Pop: 6,641,928

Maryland

Pop: 5,930,538

Colorado

Pop: 5,278,906

Oregon

Pop: 3,939,233

Nevada

Pop: 2,798,636

Hawaii

Pop: 1,406,299

Rhode Island

Pop: 1,053,661

District of Columbia

Pop: 647,484

States comprised of more

Medium Density

Texas

Pop: 26,538,614

Florida

Pop: 19,645,772

Ohio

Pop: 11,575,977

Virginia

Pop: 8,256,630

Washington

Pop: 6,985,464

Connecticut

Pop: 3,593,222

Utah

Pop: 2,903,379

Kansas

Pop: 2,892,987

States comprised of more

Low Density

Pennsylvania

Pop: 12,779,559

Georgia

Pop: 10,006,693

Michigan

Pop: 9,900,571

North Carolina

Pop: 9,845,333

Indiana

Pop: 6,568,645

Tennessee

Pop: 6,499,615

Missouri

Pop: 6,045,448

Wisconsin

Pop: 5,742,117

Minnesota

Pop: 5,419,171

Alabama

Pop: 4,830,620

South Carolina

Pop: 4,777,576

Louisiana

Pop: 4,625,253

Kentucky

Pop: 4,397,353

Oklahoma

Pop: 3,849,733

Iowa

Pop: 3,093,526

Mississippi

Pop: 2,988,081

Arkansas

Pop: 2,958,208

New Mexico

Pop: 2,084,117

Nebraska

Pop: 1,869,365

West Virginia

Pop: 1,851,420

Idaho

Pop: 1,616,547

Maine

Pop: 1,329,100

New Hampshire

Pop: 1,324,201

Montana

Pop: 1,014,699

Delaware

Pop: 926,454

South Dakota

Pop: 843,190

Alaska

Pop: 733,375

North Dakota

Pop: 721,640

Vermont

Pop: 626,604

Wyoming

Pop: 579,679

1 U.S. Census block groups may contain non-residential land area such as industrial parks, shopping malls and national parks so portions of the block group may contain zero population.
2 The annual growth rate was derived by aggregating the population from the prior two American Community Surveys (2013 and 2014) for the block groups identified as high, medium and low density block groups in the 2015 ACS and then calculating and averaging the change.