San Marcos is a larger medium-sized city located in the state of Texas. With a population of 70,301 people and 18 associated neighborhoods, San Marcos is the 57th largest community in Texas. San Marcos has seen a significant amount of newer housing growth in recent years. Quite often, new home construction is the result of new residents moving in who are middle class or wealthier, attracted by jobs, a healthy local economy, or other amenities as they leave nearby or far away areas for greener pastures. This seems to be the case in San Marcos, where the median household income is $47,394.00.

Also of interest is that San Marcos 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 San Marcos telecommute to their jobs. Overall, about 8.27% 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 San Marcos has a very large number of students who are 18 years or older and in college, it is thought of as a college town. This has a major influence on local San Marcos lifestyle, entertainment, and culture in general. Life in San Marcos is very much tied to the academic calendar: when students return from the summer break in the fall, one will notice them out and about, buying groceries, out with friends, and generally getting re-acquainted with each other. In San Marcos people study hard and play hard, and there is ample opportunity to do both.

Not only is San Marcos a city with many college students, but it also retains many recent graduates who are looking to start new careers, creating a decent-sized population of people who are young, single, educated, and upwardly-mobile. This makes it a good choice for other relocating single professionals. Here, these young singles will find many others like themselves, with opportunities for friendships, socializing, romance, and fun.

The citizens of San Marcos are very well educated compared to the average community in the nation: 35.66% of adults in San Marcos have a bachelor's degree or even advanced degree.

The per capita income in San Marcos in 2022 was $25,282, which is lower middle income relative to Texas and the nation. This equates to an annual income of $101,128 for a family of four. However, San Marcos contains both very wealthy and poor people as well.

San Marcos is an extremely ethnically-diverse city. The people who call San Marcos home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of San Marcos residents report their race to be White, followed by Black or African-American. San Marcos also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 41.89% of the city’s residents. Important ancestries of people in San Marcos include German, Irish, English, Italian, and Scottish.

The most common language spoken in San Marcos is English. Other important languages spoken here include Spanish and Langs. of India.