St. Augustine is a medium-sized coastal city (i.e. on the ocean, a bay, or inlet) located in the state of Florida. With a population of 15,596 people and 26 associated neighborhoods, St. Augustine is the 177th largest community in Florida. Much of the housing stock in St. Augustine was built relatively recently. The construction of new real estate can often be taken as an indication that the local St. Augustine economy is robust, and that jobs or other amenities are attracting an influx of new residents. This seems to be the case in St. Augustine, where the median household income is $80,473.00.

Housing costs in St. Augustine 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 Florida.

Of important note, St. Augustine is also a city of artists. St. Augustine has more artists, designers and people working in media than 90% of the communities in America. This concentration of artists helps shape St. Augustine’s character.

Also of interest is that St. Augustine 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 St. Augustine telecommute to their jobs. Overall, about 18.06% 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.

St. Augustine is also a college town, where lots of students live while attending area colleges. Because of the high percentage of people living in St. Augustine enrolled in college, St. Augustine has a number of services, amenities and opportunities geared towards the needs and activities of students.

St. Augustine 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 St. Augustine are among the most well-educated in the nation: 43.51% of adults in St. Augustine have a bachelor's degree or even advanced degree, whereas the average US city has 21.84% holding at least a bachelor's degree.

The per capita income in St. Augustine in 2022 was $46,355, which is upper middle income relative to Florida and the nation. This equates to an annual income of $185,420 for a family of four. However, St. Augustine contains both very wealthy and poor people as well.

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

The most common language spoken in St. Augustine is English. Other important languages spoken here include Spanish and Polish.