Portland is a city in Ashley County, Arkansas, United States.

[3] Portland was first settled in the 1830s, and named for its early status as a steamboat port.

[4] According to the United States Census Bureau, the city has a total area of 1.1 square miles (2.8 km2), all of it land.

[3] Portland is located on north-south U.S. Route 165 at the junction with State Highway 160.

As of the 2020 United States census, there were 325 people, 178 households, and 92 families residing in the city.

[10] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.