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The 1860 United States census was the eighth census conducted in the United States starting June 1, 1860, and lasting five months. It determined the population of the United States to be 31,443,321 [ 1 ] in 33 states and 10 organized territories.
Between 1880 and 1900, the urban population of the United States rose from 28% to 40%, and reached 50% by 1920, in part due to 9,000,000 European immigrants. After 1890 the US rural population began to plummet, as farmers were displaced by mechanization and forced to migrate to urban factory jobs.
As the United States has grown in area and population, new states have been formed out of U.S. territories or the division of existing states. The population figures provided here reflect modern state boundaries. Shaded areas of the tables indicate census years when a territory or the part of another state had not yet been admitted as a new state.
UN estimates (as of 2017) for world population by continent in 2000 and in 2050 (pie chart size to scale) Asia Africa Europe Central/South America North America Oceania. Population estimates for world regions based on Maddison (2007), [29] in millions. The row showing total world population includes the average growth rate per year over the ...
Pre-Columbian population figures are difficult to estimate because of the fragmentary nature of the evidence. Estimates range from 8–112 million. [10] Scholars have varied widely on the estimated size of the Indigenous populations prior to colonization and on the effects of European contact. [11]
The center of population is the point at which an imaginary, weightless, rigid, and flat (no elevation effects) surface representation of the 50 states (or 48 conterminous states for calculations made prior to 1960) and the District of Columbia would balance if weights of identical size were placed on it so that each weight represented the ...
The rural population is defined by size of place under 2500 and includes non-farmers living in villages and the open countryside. At the first census in 1790, the rural population was 3.7 million and urban only 202,000. The nation was 95% rural, and the great majority of rural residents were subsistence farmers.
The average household size was 2.29 and the average family size was 3.11. [6] In 2010, the median age in the city was 35.7 years. 24.6% of residents were under the age of 18; 11% were between the ages of 18 and 24; 26.1% were from 25 to 44; 26.3% were from 45 to 64; and 12% were 65 years of age or older.