Key Largo is a somewhat small coastal town (i.e. on the ocean, a bay, or inlet) located in the state of Florida. With a population of 12,447 people and five associated neighborhoods, Key Largo is the 196th largest community in Florida.

Key Largo home prices are not only among the most expensive in Florida, but Key Largo real estate also consistently ranks among the most expensive in America.

A relatively large number of people in Key Largo telecommute to their jobs. Overall, about 8.42% 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 Key Largo is an extremely popular destination for tourists and seasonal residents. So much of the population is seasonal such that the town’s population swells significantly during the vacation season, and drops again when the season ends. Because of this, much of the local economy is centered around tourism; some businesses may be operated only during the high season. During the low season, year-round residents will notice that the city is a substantially quieter place to live.

It is a fairly quiet town because there are relatively few of those groups of people who have a tendency to be noisy. (Children, for example, often can't help themselves from being noisy, and being parents ourselves, we know!) Key Largo has relatively few families with children living at home, and is quieter because of it. Renters and college students, for their own reasons, can also be noisy. Key Largo has few renters and college students. But the biggest reason it is quieter in Key Largo than in most places in America, is that there are just simply fewer people living here. If you think trees make good neighbors, Key Largo may be for you.

Key Largo 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. Quite often, nautical areas such as these attract visitors and locals who come to enjoy the scenery and various waterfront activities.

The citizens of Key Largo are very well educated compared to the average community in the nation: 36.61% of adults in Key Largo have a bachelor's degree or even advanced degree.

The per capita income in Key Largo in 2018 was $50,723, which is upper middle income relative to Florida, and wealthy relative to the rest of the US. This equates to an annual income of $202,892 for a family of four. However, Key Largo contains both very wealthy and poor people as well.

Key Largo is an extremely ethnically-diverse town. The people who call Key Largo home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Key Largo residents report their race to be White, followed by Black or African-American. Key Largo also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 29.76% of the town’s residents. Important ancestries of people in Key Largo include Irish, English, German, French, and Italian.

Foreign born people are also an important part of Key Largo's cultural character, accounting for 22.75% of the town’s population.

The most common language spoken in Key Largo is English. Other important languages spoken here include Spanish and German/Yiddish.