Portland is a city located in Jay County Indiana. It is also the county seat of Jay County. With a 2020 population of 5,836, it is the 112th largest city in Indiana and the 4354th largest city in the United States . Portland is currently declining at a rate of -1.40% annually and its population has decreased by -6.22% since the most recent census, which recorded a population of 6,223 in 2010. Portland reached it's highest population of 7,115 in 1970. Spanning over 5 miles, Portland has a population density of 1,198 people per square mile.
The average household income in Portland is $47,693 with a poverty rate of 15.52%. The median rental costs in recent years comes to $660 per month, and the median house value is $71,100. The median age in Portland is 38.3 years, 35.4 years for males, and 40.9 years for females.