Ōoka, Nagano
Ōoka was a village located in Sarashina District, Nagano Prefecture, Japan.
As of 2003, the village had an estimated population of 1,467 and a density of 31.99 persons per km². The total area was 45.86 km².
On January 1, 2005, Ōoka, along with the town of Toyono, and the villages of Togakushi and Kinasa, was merged into the expanded city of Nagano.
