Health insurance programs subsidized by state and federal tax dollars are an important source of health insurance coverage for children in the United States. The National Health Interview Survey (2022) estimated that 43.7% of children ages 0 to 17 in the U.S. had publicly subsidized health insurance coverage.  While this public coverage includes some children insured through Medicare, state-sponsored or other government-sponsored health plans, and military plans, the primary drivers of public health insurance coverage for children in the U.S. are Medicaid and the Children's Health Insurance Program (CHIP).  Medicaid is the joint federal-state health insurance program for eligible individuals with limited incomes, while CHIP is a joint federal-state effort to make available health insurance for children from low-income families who do not otherwise qualify for Medicaid coverage.  As of January 2023, federal reports indicate that there were nearly 41.9 million children enrolled in Medicaid or separate CHIP programs.

That same January 2023 data reveals that the six-state Far Western U.S. had over 7.3 million children enrolled in either Medicaid or separate CHIP programs.  Of the total Medicaid child and CHIP enrollment reported by 49 states and the District of Columbia in January 2023, the Far Western U.S. accounted for about 17.5% of the national total.  Here is a summary look at Medicaid child and CHIP enrollment in the Far Western U.S. as of January 2023:

Medicaid Child and CHIP Enrollment in the Far Western U.S.

Area Name	Enrollment	% of U.S. Total
Alaska	104,942	0.2%
California	5,277,292	12.6%
Hawaii	165,644	0.4%
Nevada	362,655	0.9%
Oregon	492,686	1.2%
Washington	907,569	2.2%
Region	7,310,788	17.5%
United States (1)	41,859,753	100.0%

(1) National figures are for the 49 states and the District of Columbia that reported child enrollment data for January 2023

Source: Medicaid.gov Enrollment Reports as of January 2023