what is the population of washington state
Last official estimated population of Washington was 7,170,351 (year 2015)[1]. This was 2.2% of total US population. Area of Washington is 71,298.0 miÂ² (=184661 kmÂ²), in this year population density was 100.57 p/miÂ². If population growth rate would be same as in period 2010-2015 (+1.29%/yr), Washington population in 2017 would be 7,356,844*.