Old Lyme is a somewhat small coastal town (i.e. on the ocean, a bay, or inlet) located in the state of Connecticut. With a population of 7,684 people and three associated neighborhoods, Old Lyme is the 112th largest community in Connecticut.

Housing costs in Old Lyme 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 Connecticut.

Also of interest is that Old Lyme 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 Old Lyme telecommute to their jobs. Overall, about 21.28% 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.

In addition, Old Lyme is home to many people who could be described as "urban sophisticates", which are people who are not only wealthy and employed in professional occupations, but highly educated to boot. Urban sophisticates have urbane tastes - whether they reside in a big or small city, a suburb, or a little town. Urban sophisticates support bookstores, quality clothing stores, enjoy luxury travel, and in big cities, they are truly the patrons of the arts, attending and supporting institutions such as opera, symphony, ballet, and theatre.

Old Lyme 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 town’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, Old Lyme’s overall crime rate is lower than average for the country.

Old Lyme is also nautical, which means that parts of it are somewhat historic and touch the ocean or tidal bodies of water, such as inlets and bays. Such areas are often places that visitors and locals go for waterfront activities or taking in the scenery.

If knowledge is power, Old Lyme is a pretty powerful place. 54.56% of the adults in Old Lyme have earned a 4-year college degree, masters degree, MD, law degree, or even PhD. Compare that to the national average of 21.84% for all cities and towns.

The per capita income in Old Lyme in 2022 was $75,411, which is wealthy relative to Connecticut and the nation. This equates to an annual income of $301,644 for a family of four.

Old Lyme is a somewhat ethnically-diverse town. The people who call Old Lyme home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Old Lyme residents report their race to be White, followed by Asian. Important ancestries of people in Old Lyme include Irish, Italian, English, German, and Polish.

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