Dennis is a medium-sized coastal town (i.e. on the ocean, a bay, or inlet) located in the state of Massachusetts. With a population of 14,903 people and five associated neighborhoods, Dennis is the 141st largest community in Massachusetts.

Dennis home prices are not only among the most expensive in Massachusetts, but Dennis real estate also consistently ranks among the most expensive in America.

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

A relatively large number of people in Dennis telecommute to their jobs. Overall, about 12.90% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. 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.

Another notable thing is that Dennis is a major vacation destination. Much of the town’s population is seasonal: many people own second homes and only live there part-time, during the vacation season. The effect on the local economy is that many of the businesses are dependent on tourist dollars, and may operate only during the high season. As the vacation season ends, Dennis’s population drops significantly, such that year-round residents will notice that the city is a much quieter place to live.

The town is relatively quiet, having a combination of lower population density and few of those groups of people who have a tendency to be noisy. For example, Dennis has relatively fewer families with younger children, and/or college students. Combined, this makes Dennis a pretty quiet place to live overall. If you like quiet, you will probably enjoy it here.

One of the nice things about Dennis is that it is nautical, which means that parts of it are somewhat historic and touch the ocean or tidal bodies of water, such as inlets and bays. Because of this, visitors and locals will often go to these areas to take in the scenery or to enjoy waterfront activities.

Dennis is one of the most well-educated cities in the nation. 41.11% of adults in Dennis have at least a bachelor's degree. Compare that to the average community in America, which has just 21.84% with a bachelor's degree or higher.

The per capita income in Dennis in 2022 was $52,625, which is middle income relative to Massachusetts, and wealthy relative to the rest of the US. This equates to an annual income of $210,500 for a family of four. However, Dennis contains both very wealthy and poor people as well.

The people who call Dennis home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Dennis residents report their race to be White, followed by Black or African-American. Important ancestries of people in Dennis include Irish, English, Italian, German, and French.

The most common language spoken in Dennis is English. Other important languages spoken here include Spanish and French Creole.