Bloomfield is a city in Knox County, Nebraska, United States.

[4] It was named for Bloomfield Dyer, the original owner of the town site.

[5] According to the United States Census Bureau, the city has a total area of 0.82 square miles (2.12 km2), all land.

41.6% of all households were made up of individuals, and 24% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 98.31% White, 0.89% Native American, 0.09% Asian, and 0.71% from two or more races.

38.8% of all households were made up of individuals, and 26.1% had someone living alone who was 65 years of age or older.