Colorado Population 2018
Our 2018 estimate for Colorado's population is 5.68 million. This estimate is calculated from projecting the most recent Census estimates. The last official population count for Colorado was taken during the 2010 Census. At that time, it was found that the population was 5,029,196.
The 2010 Census numbers represented a rise of 16.9% from the 2000 census survey, when 4,301,262 residents were shown to be living in Colorado. Updated estimates arrive on a yearly basis, and in 2015, it was reported that the numbers in Colorado had increased to 5,456,574.
The 2015 estimate reflects an 8.5% increase since the last census. With a yearly growth rate of 1.85% in 2016, Colorado is second fastest-growing state in the US.
Colorado Population Density
With a large surface area of 104,094 square miles (269,837 square kilometers) Colorado is the eighth largest state in the USA, but it is relatively sparsely populated. Some of the terrain is harsh, and the vast Rocky Mountain range accounts for a significant proportion of the state’s land mass.
As a result, there are 52 people per square mile (19.9 per square kilometer) and that makes Colorado only the 37th biggest state in terms of population density.
Colorado Population History
Although part of Colorado was acquired as early as the Louisiana Purchase of 1803, it had no organized government until 1850, when parts of the present State were included in New Mexico and Utah Territories. Colorado was established as a territory in 1861 with its present boundaries, from parts of Kansas, Nebraska, New Mexico, and Utah Territories. The 1860 population is the total enumerated within the 1861 boundaries. Colorado was admitted as a State on August 1, 1876. Present-day Colorado had no census coverage in 1850, and none in 1860 for the portion taken from Utah Territory.