Net migration, or the difference between how many people moved in and how many moved out, is one part of population change. The other part is natural change, or the difference between births and deaths.
From 2010 to 2015, Washington. . .
- Gained 333,395 residents through net in-migration.
- Had a net migration rate of 4.9 percent compared to 1.9 percent for the U.S..
- Grew by 225,566 residents due to natural change.
- Had a natural change rate of 3.3 percent compared to 2.8 percent for the U.S..