Oronoco (/ɒrəˈnoʊkoʊ/ orr-ə-NOH-koh)[4] is a city in Olmsted County, Minnesota, United States, along the Middle Fork of the Zumbro River.

[5] The city was named by early settler Dr. Hector Galloway after the Orinoco, a large river in South America.

[9] As of the census[11] of 2010, there were 1,300 people, 451 households, and 357 families living in the city.

There were 477 housing units at an average density of 191.6 per square mile (74.0/km2).

16.9% of all households were made up of individuals, and 5.1% had someone living alone who was 65 years of age or older.

There were 343 housing units at an average density of 187.6 per square mile (72.4/km2).

18.5% of all households were made up of individuals, and 6.3% had someone living alone who was 65 years of age or older.