The population of Oak Ridge soon expanded well beyond the initial plans, and peaked at 75,000 in May 1945, by which time 82,000 people were employed at the Clinton Engineer Works, and 10,000 by Roane-Anderson.
Befolkningstallet i Oak Ridge oversteg snart de oprindelige planer og toppede med 75.000 i maj 1945, hvor der var 82.000 ansatte på Clinton Engineer Works, og 10.000 ved Roane-Anderson.