United States Population in 1965 and 2025
The United States population in 1965 was approximately 194.8 million. This figure is based on U.S. Census Bureau estimates for December 1, 1965, which include Alaska and Hawaii but exclude Armed Forces abroad. 
An alternative source estimates it at 193.5 million for the end of the year, reflecting a yearly increase of about 2.4 million from 1964. 
As of November 28, 2025 (today), the U.S. population is estimated at approximately 347.5 million. This is derived from United Nations projections elaborated by Worldometer, accounting for midyear trends and growth rates.  Supporting data from World Population
Review confirms a figure over 347 million as of late 2025.