Plymouth is a somewhat small city located in the state of Indiana. With a population of 10,705 people and five associated neighborhoods, Plymouth is the 82nd largest community in Indiana.

The percentage of adults in Plymouth who are college-educated is close to the national average for all communities of 21.84%: 18.13% of the adults in Plymouth have a bachelor's degree or advanced degree.

The per capita income in Plymouth in 2022 was $26,797, which is lower middle income relative to Indiana and the nation. This equates to an annual income of $107,188 for a family of four. However, Plymouth contains both very wealthy and poor people as well.

Plymouth is a very ethnically-diverse city. The people who call Plymouth home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Plymouth residents report their race to be White, followed by Black or African-American. Plymouth also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 27.53% of the city’s residents. Important ancestries of people in Plymouth include German, Irish, English, Polish, and Scots-Irish.

The most common language spoken in Plymouth is English. Other important languages spoken here include Spanish and Polish.