According to the 2020 United States Census, the population of the Northwestern region was approximately 16,388,000, representing about 4.9% of the total U.S. population. The population distribution within the region varies, with California being the most populous state and Wyoming being the least populous.
Here is a breakdown of the estimated population for each state in the Northwestern region as of 2020:
- Idaho: 1,839,106
- Montana: 1,084,225
- Oregon: 4,237,256
- Washington: 7,705,281
- Wyoming: 576,851
It's worth noting that these population estimates may have changed since 2020 due to factors such as births, deaths, and migration patterns. For the most up-to-date population estimates, please refer to official sources such as the U.S. Census Bureau.