McCammon is a city in Bannock County, Idaho, United States.

In 1892, McCammon became the junction point between the Oregon Short Line Railroad and Utah and Northern Railway, and city gained the nickname Junction City.

There were 333 housing units at an average density of 148.0 per square mile (57.1/km2).

22.0% of all households were made up of individuals, and 9.4% had someone living alone who was 65 years of age or older.

There were 296 housing units at an average density of 208.4 per square mile (80.5/km2).

19.2% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older.

This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters.