About This Place
Otho is a city in Webster County, Iowa, United States. The population was 571 at the 2000 census.
Otho is located at 42°25′29″N 94°8′59″W / 42.42472°N 94.14972°W / 42.42472; -94.14972 (42.424739, -94.149588).
According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.2 km²), all of it land.