Summerfield is a city in Marshall County, Kansas, United States.

[6] According to the United States Census Bureau, the city has a total area of 0.34 square miles (0.88 km2), all land.

The racial makeup of the city was 98.1% White, 0.6% African American, and 1.3% from two or more races.

39.2% of all households were made up of individuals, and 12.6% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 99.05% White, 0.47% Native American, and 0.47% from two or more races.

About 7.1% of families and 11.8% of the population were below the poverty line, including 17.1% of those under the age of eighteen and 14.0% of those 65 or over.

The community is served by Prairie Hills USD 113 public school district.