Edwin C. Johnson Democratic Stephen McNichols Democratic The 1956 Colorado gubernatorial election was held on November 6, 1956.

Democratic nominee Stephen McNichols defeated Republican nominee Donald G. Brotzman with 51.34% of the vote.

[1] McNichols narrowly won the election by being able to capture majority of the vote in Colorado's then two largest cities and counties: Denver and Pueblo.

[2] Meanwhile, Brotzman performed best in large farming areas as well as in several cities like Fort Collins, Boulder, and Golden.

Factors like Democrats being better organized along with McNichols being a popular lieutenant governor to also popular governor Edwin Johnson helped propel him to victory.