Clackamas is an unincorporated community and former census-designated place (CDP) in Clackamas County, Oregon, United States and is a suburb of Portland. The population was approximately seven thousand in 2010.
Clackamas is home to Camp Withycombe, which is a military base, and to a branch of the Kaiser Permanente Hospital.
Clackamas is part of the Portland Metropolitan Area and lies approximately 10 miles (16 km) southeast of downtown Portland and to the east of Interstate 205 along Oregon Routes 212 and 224 and to the north of the Clackamas River.
According to the United States Census Bureau, the CDP has a total area of 2.1 square miles (5.4 km2), all of it land.
At the 2000 census there were 5,177 people, 2,000 households, and 1,336 families in the CDP. The population density was 2,425.3 people per square mile (938.4/km²). There were 2,133 housing units at an average density of 999.3 per square mile (386.6/km²). The racial makeup of the CDP was 85.28% White, 1.08% African American, 0.66% Native American, 6.32% Asian, 0.33% Pacific Islander, 2.70% from other races, and 3.63% from two or more races. Hispanic or Latino of any race were 5.95%. 22.1% were of German, 10.8% English, 9.4% Irish and 6.3% American ancestry according to Census 2000.
Of the 2,000 households 36.2% had children under the age of 18 living with them, 49.9% were married couples living together, 11.5% had a female householder with no husband present, and 33.2% were non-families.