Tri-City (or Tri City) is a census-designated place (CDP) in Douglas County, Oregon, United States. As of the 2020 census, Tri-City had a population of 4,019. The community in floodplain near the Umpqua River is named for the three cities among which it is centered: Myrtle Creek, Canyonville and Riddle. The Tri City School District may have originated the name, which was later adopted by the local sewer district and the former Tri City State Airport (now known as the Myrtle Creek Municipal Airport).
Geography
According to the United States Census Bureau, the CDP has a total area of , all of it land.
Demographics
2020 census
As of the 2020 census, Tri-City had a population of 4,019. The median age was 46.8 years. 20.2% of residents were under the age of 18 and 24.3% of residents were 65 years of age or older. For every 100 females there were 101.3 males, and for every 100 females age 18 and over there were 101.5 males age 18 and over.
98.8% of residents lived in urban areas, while 1.2% lived in rural areas.
There were 1,610 households in Tri-City, of which 23.4% had children under the age of 18 living in them. Of all households, 47.1% were married-couple households, 20.1% were households with a male householder and no spouse or partner present, and 24.0% were households with a female householder and no spouse or partner present. About 26.2% of all households were made up of individuals and 12.7% had someone living alone who was 65 years of age or older.