Bucklin is a city in southeast Linn County, Missouri, United States.

Bucklin is located on Missouri Route 129 approximately 5.5 miles northeast of Marceline.

[7] According to the United States Census Bureau, the city has a total area of 1.18 square miles (3.06 km2), all land.

There were 271 housing units at an average density of 229.7 per square mile (88.7/km2).

The racial makeup of the city was 99.4% White, 0.2% Native American, and 0.4% from two or more races.

37.3% of all households were made up of individuals, and 17.1% had someone living alone who was 65 years of age or older.

36.5% of all households were made up of individuals, and 23.2% had someone living alone who was 65 years of age or older.