Population Trend Charts and Data Tables show census counts and mid-decade estimates since 1940, and projections to 2050. The 11 western states grew to 61,359,463 people in 2000, increasing 20% over 1990.

Population Pyramids provide a view of population structure by age group and gender, for both 1997 data and 2020 projections. Most states' pyramids strongly show the post-war "baby-boom" bulge now in the 30-50 years-old range.

National Overview of growth and Diversity. The Interior West clearly won the national growth sweepstakes in the 1990s - the surprises in the West are the few areas that didn't grow. The West's increasing diversity is a significant trend.