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

[5] The first post office in Williamsburg was established in April, 1869, and it was officially spelled Williamsburgh until 1894.

[7] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

There were 159 housing units at an average density of 244.6 per square mile (94.4/km2).

27.5% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 97.15% white, 1.71% Native American, and 1.14% from two or more races.

28.1% of all households were made up of individuals, and 13.7% had someone living alone who was 65 years of age or older.

Williamsburg is served by West Franklin USD 287 public school district.