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.

Telecommuters are a relatively large percentage of the workforce: 8.27% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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.

In addition, San Marcos is a major college town that has a very high percentage of its residents over 18 years old who are college students. Naturally, collegiate life has a major influence on local San Marcos culture, lifestyle and entertainment options. San Marcos really pulses to the beat of the academic calendar. In San Marcos every fall, returning students reinvigorate the community, who you will notice are all over town, buying groceries, out with friends, and getting acquainted or re-acquainted with each other and San Marcos. One of the beneficial effects that colleges provide is that they tend to be lasting institutions that deliver direct economic benefits to the local economy in the form of such things as jobs for faculty and staff, and spending by students. San Marcos benefits directly from this.

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, shaping the character of the city into a place that is geared toward, and considered attractive to, many single, educated people. Many singles consider San Marcos a good place to live without being in a really big city, with opportunities for friendships and fun with others like themselves.

The education level of San Marcos citizens is very high relative to the national average among all cities (21.84%): 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.