Oklahoma City Population: 681,054 (2021 Census Estimate)

According to the U.S. Census Bureau, Oklahoma City’s population as of July 1, 2021 was 681,054.

It is the 20th-largest U.S. city by population and the largest in Oklahoma. The OKC metro area exceeds 1.4 million. Growth has been steady, driven by energy, aerospace, and relatively affordable housing.