Connecticut weighed in for this election as 2% more Republican than the national average. As of the 2020 United States presidential election[update], this is the last election in which Hartford County voted for the Republican candidate. This is also the final time that a Republican presidential candidate was able to win every county in the state or win by a double-digit margin. Reagan won Connecticut by a 22% margin and with slightly over 60% of the vote, making it 3.7% more Republican than the nation overall amid his national landslide. Since 1896, Connecticut had generally leaned Republican, voting for losing Republican candidates in 1916, 1932, 1948, and 1976 (but also voting for Hubert Humphrey in 1968 and for John F. Kennedy, as he only narrowly won in 1960). The basis for Republican strength in Connecticut had been suburban Fairfield County, where Reagan approached 2/3 of the vote. However, Reagan also took New Haven County—the swing county amongst the state's three largest—by twenty points, and won Hartford County—generally the most Democratic-friendly of the state's three largest counties—by double digits.
After 1996, all of Connecticut's large counties would become reliably Democratic, and the state with them. Reagan's 890,877 votes were the most received by a Republican presidential candidate in the state's history.