Claflin is a city in Barton County, Kansas, United States. The population was 705 at the 2000 census.
Claflin is located at 38°31′30″N 98°32′14″W / 38.524996°N 98.537128°W / 38.524996; -98.537128 (38.524996, -98.537128). According to the United States Census Bureau, the city has a total area of 0.3 square miles (0.9 km2), all of it land.
As of the census of 2000, there were 705 people, 280 households, and 189 families residing in the city. The population density was 2,120.3 people per square mile (824.9/km2). There were 316 housing units at an average density of 950.4 per square mile (369.7/km2). The racial makeup of the city was 99.43% White, 0.14% from other races, and 0.43% from two or more races. Hispanic or Latino of any race were 0.99% of the population.