Portland is located in San patricio county Texas with a geographic area of 12.5 square miles. The total population in Portland is 17,807 with 51.4% male and 48.6% female. Children under age 5 represent 6.7% of the population, under age 18 equal 27.1% of the population and over age 65 is 13.5% of the population. The median household income is $77,409, per capita income is $34,941. There are a total of 6,136 housing units with 67.7% owner occupied. Education includes 26.2% of residents that are high school graduates and 28.8% with a bachelor's degree or higher. The average temperature in Portland in the summer is 85 degrees, and in the winter 49 degrees.
