Oklahoma
About Oklahoma
Oklahoma, Oklahoma, first appears in the United States federal census in 1890, when it recorded a population of 11,742. At the most recent census, in 2020, its population stood at 796,292.
The county's recorded population has risen across the decades to its highest level in 2020.
On the ground today, 2 documented military engagements have been recorded within the county, among them Indian Territory Outlaw Violence, Oklahoma City Bombing 1995, and 173 places are listed on the National Register of Historic Places.
Population by decade
Population data from the United States decennial census, U.S. Census Bureau (public domain).
Battles & engagements in Oklahoma
Military engagements that took place in Oklahoma, Oklahoma.
Historic places in Oklahoma
National Register of Historic Places listings in Oklahoma, Oklahoma.
Other counties in Oklahoma
Explore census history and historic records for more Oklahoma counties.
Everything a full report reveals about Oklahoma County, Oklahoma
This page charts the census history of Oklahoma County, Oklahoma. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Explore Oklahoma records
Frequently asked about Oklahoma
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