In the state of Oklahoma, there are approximately 3,800,000 people (ranked twenty-eighth in population among U.S. states). The average population density in Oklahoma is about 21 people per square kilometer (thirty-fifth place in the U.S.).
The largest city in the state is its capital, Oklahoma City, where approximately 600,000 people reside (thirtieth place in the list of the largest U.S. cities). Other major cities in Oklahoma include Tulsa (about 400,000 people, forty-fifth place), Norman (over 110,000 people), Broken Arrow (over 100,000 people), and Lawton (around 100,000 people).
The largest urban agglomerations in Oklahoma have developed around Oklahoma City (approximately 1,300,000 residents, forty-third place in the list of U.S. metropolitan areas) and Tulsa (around 950,000 residents, fifty-fourth place). Approximately sixty percent of Oklahomans live in these vast metropolitan areas.
Oklahoma ranks second in the U.S. (after California) in terms of the number of Native American inhabitants living in the state and fourth (after Alaska, New Mexico, and South Dakota) in relation to their population share.
The largest ethnic (national) groups among Oklahoma's population are:
Germans - 14.6%
Irish - 12.6%
English - 8.2%
Mexicans - 7.1%
French - 2.4% French source
Dutch - 2.0%
Scots - 1.8%
Italians - 1.7%
The largest population groups in the state of Oklahoma based on religious affiliation are:
Christians - approximately 85%, including:
Protestants - approximately 70%, including:
Baptists - approximately 26%
Methodists - approximately 9%
Catholics - approximately 13%
Muslims - less than 1%
Jews - less than 1%
Atheists - approximately 12%
In Oklahoma, as in other southern U.S. states, there is a very high percentage of religious believers in the population. For example, in the city of Tulsa, more than 60% of residents regularly attend church (this is a very high percentage for the U.S.), and one of the country's largest theological universities is located here. Tulsa is sometimes referred to as one of the "buckles" (meaning centers) of the "Bible Belt," a region in the southern U.S. with a high number of adherents of the largest Protestant organization in the United States, the Southern Baptist Convention.
