St. Augustine is a somewhat small coastal city (i.e. on the ocean, a bay, or inlet) located in the state of Florida. With a population of 15,180 people and 26 associated neighborhoods, St. Augustine is the 177th largest community in Florida. There's nothing like the smell of a brand new house, and in St. Augustine, you'll find that a large proportion of houses were recently built. New growth in residential real estate is an indication that people are choosing to move to St. Augustine, and putting down their money on brand new construction. St. Augustine’s real estate is, on average, some of the newest in the nation. St. Augustine does seem to be experiencing an influx of affluent people, because the median household income is $72,806.00.

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.

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 14.96% 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.

Because there are quite a few people attending college in St. Augustine, it is thought of as a college town. To the benefit of the many students in the area, St. Augustine provides a number of services, amenities and opportunities geared towards their needs and activities.

One of the nice things about St. Augustine 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.

The citizens of St. Augustine are among the most well-educated in the nation: 42.35% 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 $42,903, which is upper middle income relative to Florida and the nation. This equates to an annual income of $171,612 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, German, Irish, Italian, and French.

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