Washington County growing faster than nearly all others, PSU report says
Washington County is one of the state's fastest growing counties, according to a new report released by Portland State University.
The county added more than 12,000 new residents in the past year, more than any other in the state, except for Multnomah County.
The annual report from Portland State University's Population Research Center, only two Central Oregon counties were grew faster than Washington County. Deschutes County grew by 3.6 percent this year. Its largest city, Bend, added 3,265 residents to reach a population of 86,765. Crook County grew 2.4 percent. Washington was the third-fastest growing county, growing by 2.1 percent last year.
Much of that growth was in Hillsboro and Tigard, which each added more than 1,000 people in the past year, according to the report. Hillsboro added 1,525, while Tigard added 1,240.
But the completion of new housing developments in the tiny city of North Plains made it the fastest growing city in Washington County in the past year. The town erupted to a population of 2,980 according to the report, nearly one-third larger than it was the year before.
Statewide, the report now puts Oregon's population at 4.1 million.
The state grew by nearly 65,000 residents last year, according to the report. People migrating to the state accounted for 88 percent of the jump while 12 percent was due to an increase in births over deaths.
Net migration has resulted in more than 200,000 additional Oregon residents since 2012, Rynerson said.
"Due to an aging population and declining birth rates, natural increase (the amount of new births compared to deaths) now contributes less to Oregon's population growth than at any time since the 1930s," said Charles Rynerson, a research associate at the university's Population Research Center.
The report estimated the size of every Oregon city and county. Final numbers are expected within the next few weeks.