Lower 48 States 2020

The United States is made up of 50 states, but 48 states – also known as the conterminous states, the lower 48, or the contiguous states – are adjoined. Two of the states – Alaska and Hawaii – are not part of the lower 48 states. This is because Alaska is separated by British Columbia, Canada, and Hawaii is an island. Washington, D.C., is also part of the contiguous United States, although it is not an official state. The contiguous United States is not to be confused with the continental U.S., which also includes the state of Alaska.

The lower 48 states (along with Washington, D.C.) have an area of over 3.1 million square miles. Water makes up over 160,000 square miles, or over 62% of the world’s total water area. The remainder is land area and is similar to the size of Australia.

Based on census data from 2010, over 306 million people live in the contiguous United States. This makes up over 99% of the country’s total population. The population density of just the lower 48 states is over 103 people per square mile.

Lower 48 States 2020

State 2020 Pop.
Alabama4,908,620
Arizona7,378,490
Arkansas3,039,000
California39,937,500
Colorado5,845,530
Connecticut3,563,080
Delaware982,895
Florida21,993,000
Georgia10,736,100
Idaho1,826,160
Illinois12,659,700
Indiana6,745,350
Iowa3,179,850
Kansas2,910,360
Kentucky4,499,690
Louisiana4,645,180
Maine1,345,790
Maryland6,083,120
Massachusetts6,976,600
Michigan10,045,000
Minnesota5,700,670
Mississippi2,989,260
Missouri6,169,270
Montana1,086,760
Nebraska1,952,570
Nevada3,139,660
New Hampshire1,371,250
New Jersey8,936,570
New Mexico2,096,640
New York19,440,500
North Carolina10,611,900
North Dakota761,723
Ohio11,747,700
Oklahoma3,954,820
Oregon4,301,090
Pennsylvania12,820,900
Rhode Island1,056,160
South Carolina5,210,100
South Dakota903,027
Tennessee6,897,580
Texas29,472,300
Utah3,282,120
Vermont628,061
Virginia8,626,210
Washington7,797,100
West Virginia1,778,070
Wisconsin5,851,750
Wyoming567,025