Mayfield is a city in Sumner County, Kansas, United States. As of the 2010 census, the city population was 113, which is the same as the previous 2000 census.
Mayfield is located at 37°15′44″N 97°32′49″W / 37.26222°N 97.54694°W / 37.26222; -97.54694 (37.262336, -97.546881). According to the United States Census Bureau, the city has a total area of 0.1 square miles (0.3 km²), all of it land.
As of the census of 2000, there were 113 people, 48 households, and 39 families residing in the city. The population density was 1,081.7 people per square mile (436.3/km²). There were 52 housing units at an average density of 497.8 per square mile (200.8/km²). The racial makeup of the city was 95.58% White, 1.77% Asian, and 2.65% from two or more races. Hispanic or Latino of any race were 1.77% of the population.