Los Angeles
About Los Angeles
Los Angeles, California, first appears in the United States federal census in 1850, when it recorded a population of 3,530. At the most recent census, in 2020, its population stood at 10,014,009.
The county's recorded population has risen across the decades to its highest level in 2020.
On the ground today, 33 documented military engagements have been recorded within the county, among them Medea Creek Cemetery Violence – Ventura, Gabrielino-Tongva Conflict – Los Angeles Basin, Medea Creek Cemetery Violence, and 624 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 Los Angeles
Military engagements that took place in Los Angeles, California.
Historic places in Los Angeles
National Register of Historic Places listings in Los Angeles, California.
Everything a full report reveals about Los Angeles County, California
This page charts the census history of Los Angeles County, California. 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 California records
Frequently asked about Los Angeles
Research the history of any US location
Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.