Oceanside is a relatively large coastal city (i.e. on the ocean, a bay, or inlet) located in the state of California. With a population of 170,020 people and 44 associated neighborhoods, Oceanside is the 29th largest community in California.

Housing costs in Oceanside 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 California.

There are quite a few people in the armed forces living in Oceanside, and when you visit or drive around town, you will see military people in and out of uniform, shopping, enjoying life, and being part of the community.

Also of interest is that Oceanside 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 Oceanside telecommute to their jobs. Overall, about 13.41% 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.

Oceanside 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.

In Oceanside, however, the average commute to work is quite long. On average, people spend 30.41 minutes each day getting to work, which is significantly higher than the national average.

In terms of college education, Oceanside is substantially better educated than the typical community in the nation, which has 21.84% of the adults holding a bachelor's degree or graduate degree: 33.57% of adults in Oceanside have a college degree.

The per capita income in Oceanside in 2022 was $40,131, which is middle income relative to California, and upper middle income relative to the rest of the US. This equates to an annual income of $160,524 for a family of four. However, Oceanside contains both very wealthy and poor people as well.

Oceanside is an extremely ethnically-diverse city. The people who call Oceanside home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Oceanside residents report their race to be White, followed by Asian. Oceanside also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 37.70% of the city’s residents. Important ancestries of people in Oceanside include German, Irish, English, Italian, and European.

Foreign born people are also an important part of Oceanside's cultural character, accounting for 20.43% of the city’s population.

The most common language spoken in Oceanside is English. Other important languages spoken here include Spanish and Tagalog.