Total figure for write-in vote is listed as 10,309. For this election, a voter was able to write in up to eight names as candidates for Presidential Electors. The estimated total number of voters who wrote in one or more such names is 5,480.
Source for Popular Vote data: State of Connecticut, comp., "Vote for President of the United States, November 2, 1976," State of Connecticut Public Document No. 26 Statement of Vote General Election November 2, 1976 (Hartford, 0)