Raritan is a village in Henderson County, Illinois, United States.

According to the 2021 census gazetteer files, Raritan has a total area of 0.10 square miles (0.26 km2), all land.

4.65% of all households were made up of individuals, and 2.33% had someone living alone who was 65 years of age or older.

"In the southeast corner of Henderson county, the village of Raritan began in 1856 when a group of immigrants of the Dutch Reformed denomination from New Jersey came to what was then called Bedford Precinct.

Since many of the settlers came from New Jersey towns located along the Raritan River, it was only natural for them to name their new community after the land they left behind.