Comparing to Electoral College votes to 2019 US Census Population estimates:

The ten most over represented states in the Electoral College:

Rhode Island, West Virginia, Wyoming, Vermont, District of Columbia, Nebraska, Alaska, Maine, New Hampshire and North Dakota.

States with representation in proportion to population in the Electoral College:

Maryland, Oregon, Indiana, Missouri and Tennessee.

The ten most under represented states in the Electoral College:

California, Texas, Florida, New York, North Carolina, Georgia, Ohio, Virginia, Pennsylvania and Arizona.