Plain City is a somewhat small city located in the state of Utah. With a population of 8,321 people and two associated neighborhoods, Plain City is the 78th largest community in Utah. Plain City 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 Plain City, where the median household income is $120,250.00.

Housing costs in Plain City are among some of the highest in the nation, although real estate prices here don't compare to real estate prices in the most expensive communities in Utah.

Also of interest is that Plain City has more people living here who work in computers and math than 95% of the places in the US.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 10.75% of the workforce. While this number may seem small overall, as a fraction of the total workforce this is high compared to the rest of the county. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

Plain City is a good choice for families with children because of several factors. Many other families with children live here, making it a place where both parents and children are more likely to develop social ties with other families. The city’s good public school district and large population of college-educated adults provide an environment conducive to academic success. Many people own their own single-family homes, providing areas for children to play and stability in the community. Finally, Plain City’s overall crime rate is lower than average for the country.

The overall education level of Plain City citizens is substantially higher than the typical US community, as 29.44% of adults in Plain City have at least a bachelor's degree, and the average American community has 21.84%.

The per capita income in Plain City in 2022 was $39,221, which is upper middle income relative to Utah and the nation. This equates to an annual income of $156,884 for a family of four.

The people who call Plain City home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Plain City residents report their race to be White, followed by Native American. Important ancestries of people in Plain City include English, European, Scottish, German, and Irish.

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