Oklahoma Population 2018
The southern central state of Oklahoma is the 20th largest in the US by area and was the 46th to enter the Union. Over the years, its population has grown steadily to the point where it is edging toward a landmark of 4 million residents in the present day. Oklahoma has an estimated population in 2018 of 3.94 million, up from 3.75 million at the 2010 Census. Its growth rate is currently 0.84%, which ranks 24th in the country.
As with all states within the US, the nationwide Census of 2010 provides Oklahoma's last confirmed set of population figures. The census revealed that the population of Oklahoma was 3,751,351, which represented an increase of 8.7% on the figures released in 2000. The estimated 2018 population has now reached 3.94 million, which makes Oklahoma the 28th most populous state in the country.
Oklahoma has a fairly low population density that keeps with its ranking in terms of size and population numbers. The total surface area measures 69,898 square miles (181,195 square kilometers) and for every square mile of Oklahoma territory, there is an average of 54.7 people per square mile. This makes Oklahoma the 35th most densely populated state in the country and 20th in terms of size.
Oklahoma has a total of 598 incorporated places, but only four cities with a population over 100,000. 65% of Oklahomans live within the Oklahoma City and Tulsa metropolitan areas, with both being two of the sixty largest cities in the country. Oklahoma City is the largest city in the state with a population of 631,346, while Tulsa follows with 403,505. In these two areas, the population density exceeds 5,000 people per square mile, while the remainder of the state is mostly under 55 people per square mile.
Oklahoma Population History
Oklahoma was acquired by the Louisiana Purchase of 1803. It soon became an area of settlement for various Indian tribes displaced from States farther east, and was known as the Indian Territory although it had various tribal governments rather than a central administration. Many non-Indians also settled in the area. Oklahoma Territory was established from a part of the Indian Territory in 1890 and expanded in 1893; the tribal jurisdictions continued in the remainder. On November 16, 1907 the two parts were admitted as the State of Oklahoma, with substantially the current boundaries. A dispute about the western boundary was settled in Texas' favor by the U.S. Supreme Court in 1930.
Census coverage did not systematically include any of present-day Oklahoma until 1890; some Indian areas were first enumerated in 1900. In 1860 non-Indians were enumerated but not included in official population totals; non-Indians in the area in 1870 and 1880 were not enumerated. The 1890 total is for Oklahoma Territory (78,475) and Indian Territory (180,182); and the 1900 total is for Oklahoma Territory (398,331) and Indian Territory (392,060). Just prior to statehood, the U.S. Census Bureau took a special census on July 1, 1907, showing a total population of 1,414,177 (Oklahoma Territory, 733,062; Indian Territory, 681,115); results of this special census are included in the Oklahoma table.