Princeton is a city in Franklin County, Kansas, United States.

[5] The railroad no longer runs through Princeton, and the former tracks have been converted into the Prairie Spirit rail trail.

[7] According to the United States Census Bureau, the city has a total area of 0.33 square miles (0.85 km2), all of it land.

[8] The 2020 United States census counted 248 people, 109 households, and 77 families in Princeton.

19.3% of households consisted of individuals and 6.4% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 95.3% White, 1.1% Native American, and 3.6% from two or more races.

22.0% of all households were made up of individuals, and 6.4% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 95.90% White, 0.63% African American, 0.63% Asian, and 2.84% from two or more races.

18.9% of all households were made up of individuals, and 9.0% had someone living alone who was 65 years of age or older.

Out of the total population, 5.2% of those under the age of 18 and 23.1% of those 65 and older were living below the poverty line.

Princeton is a part of Central Heights USD 288 school district, headquarters located in Richmond.