Waltham is a larger medium-sized city located in the state of Massachusetts. With a population of 64,065 people and 13 associated neighborhoods, Waltham is the 17th largest community in Massachusetts.

Housing costs in Waltham 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 Massachusetts.

Also of interest is that Waltham 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 Waltham telecommute to their jobs. Overall, about 18.65% 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 Waltham, it is thought of as a college town. To the benefit of the many students in the area, Waltham provides a number of services, amenities and opportunities geared towards their needs and activities.

Not only is Waltham a city with many college students, but it also retains many recent graduates who are looking to start new careers, creating a very large population of people who are young, single, educated, and upwardly-mobile. That’s because Waltham is full of single people in their 20s and 30s and who have undergraduate or graduate degrees and are starting careers in professional occupations. This makes Waltham a pretty good place for young, educated career starters looking to find many people like themselves, with good opportunities for friendships, socializing, romance, and fun.

For the size of the city, public transportation in Waltham is quite heavily used. Mostly, people who use it for their daily commute are taking the bus. For Waltham, the benefits are reduced air pollution and congestion on the highways.

If knowledge is power, Waltham is a pretty powerful place. 56.57% of the adults in Waltham have earned a 4-year college degree, masters degree, MD, law degree, or even PhD. Compare that to the national average of 21.84% for all cities and towns.

The per capita income in Waltham in 2022 was $56,716, which is upper middle income relative to Massachusetts, and wealthy relative to the rest of the US. This equates to an annual income of $226,864 for a family of four. However, Waltham contains both very wealthy and poor people as well.

Waltham is an extremely ethnically-diverse city. The people who call Waltham home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Waltham residents report their race to be White, followed by Asian. Waltham also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 15.31% of the city’s residents. Important ancestries of people in Waltham include Irish, Italian, English, German, and French Canadian.

Foreign born people are also an important part of Waltham's cultural character, accounting for 25.57% of the city’s population.

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