Every ten years a census is taken. Through this census, the federal government determines how many representatives each state is permitted to have. Some states have their representation increased while others have it diminished. Since the number of electors for a presidential election for each state is determined by the total number of representatives and senators, the number of electoral votes that each state has may change every ten years. Since the election of 2000 the number of electoral votes per state has changed with a bias toward western states due to their faster population growth. Here is the current number of electoral votes per state.
Alabama - 9
Alaska - 3
Arizona - 10
Arkansas - 6
California - 55
Colorado - 9
Connecticut - 7
Delaware - 3
D.C. - 3
Florida - 27
Georgia - 15
Hawaii - 4
Idaho - 4
Illinois - 21
Indiana - 11
Iowa - 7
Kansas - 6
Kentucky - 8
Louisiana - 9
Maine - 4
Maryland - 10
Massachusetts - 12
Michigan - 17
Minnesota - 10
Missouri - 11
Montana - 3
Nebraska - 5
Nevada - 5
New Hampshire - 4
Mississippi - 6
New Jersey - 15
New Mexico - 5
New York - 31
North Carolina - 15
North Dakota - 3
Ohio - 20
Oklahoma - 7
Oregon - 7
Pennsylvania - 21
Rhode Island - 4
South Carolina - 8
South Dakota - 3
Tennessee - 11
Texas - 34
Utah - 5
Vermont - 3
Virginia - 13
Washington - 11
West Virginia - 5
Wisconsin - 10
Wyoming - 3