Population gains in the Far West.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002140:California; D005006:Ethnicity; D006801:Humans; D008875:Middle Aged; D009922:Oregon; D011157:Population Dynamics; D011158:Population Growth; D013223:Statistics as Topic; D014505:Urban Population; D014861:Washington