Mills is a very small town located in the state of Wyoming. With a population of 4,584 people and two associated neighborhoods, Mills is the 21st largest community in Wyoming. Mills has seen a significant amount of newer housing growth in recent years. Quite often, new home construction is the result of new residents moving in who are middle class or wealthier, attracted by jobs, a healthy local economy, or other amenities as they leave nearby or far away areas for greener pastures. This seems to be the case in Mills, where the median household income is $50,656.00.

Mills is a small town, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

In terms of college education, the citizens of Mills rank slightly lower than the national average. 15.25% of adults 25 and older in Mills have a bachelor's degree or advanced degree, while 21.84% of adults have a 4-year degree or higher in the average American community.

The per capita income in Mills in 2022 was $29,049, which is low income relative to Wyoming, and lower middle income relative to the rest of the US. This equates to an annual income of $116,196 for a family of four. However, Mills contains both very wealthy and poor people as well.

Mills is a very ethnically-diverse town. The people who call Mills home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Mills residents report their race to be White, followed by Black or African-American. Mills also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 18.95% of the town’s residents. Important ancestries of people in Mills include German, English, Irish, Scottish, and Polish.

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