Oakland is a city located along the West Nishnabotna River in Pottawattamie County, Iowa, United States. As of the 2000 census, the city had a total population of 1,487. Formerly named Big Grove, Oakland is home to Nishna Heritage Museum. The artist Frank Tenney Johnson was born on his family's farm nearby in 1874.
Oakland is located at 41°18′31″N 95°23′44″W / 41.30861°N 95.39556°W / 41.30861; -95.39556 (41.308492, -95.395565).
According to the United States Census Bureau, the city has a total area of 1.5 square miles (3.9 km²), of which, 1.5 square miles (3.9 km²) of it is land and 0.04 square miles (0.1 km²) of it is water. The total area is 1.32% water.