Dayton is a city in Franklin County, Idaho, United States.

In 1867, Joseph Chadwick and his family settled on Five Mile Creek and built a log cabin.

He was followed by Peter Poole, Robert Taylor, Stephen Callan, George Mendenhall, Richard Wickham and their families.

[5] Dayton lies on the west side of Cache Valley, along Five Mile Creek at the base of the Bannock Mountains.

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

There were 144 housing units at an average density of 22.1 per square mile (8.5/km2).

11.2% of all households were made up of individuals, and 6.7% had someone living alone who was 65 years of age or older.

14.3% of all households were made up of individuals, and 11.1% had someone living alone who was 65 years of age or older.