Holtsville is a medium-sized town located in the state of New York. With a population of 18,937 people and four associated neighborhoods, Holtsville is the 96th largest community in New York.

Housing costs in Holtsville 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 New York.

Also of interest is that Holtsville 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: 9.08% 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.

Because of many things, Holtsville is a very good place for families to consider. With an enviable combination of good schools, low crime, college-educated neighbors who tend to support education because of their own experiences, and a high rate of home ownership in predominantly single-family properties, Holtsville really has some of the features that families look for when choosing a good community to raise children. Is Holtsville perfect? Of course not, and if you like frenetic nightlife, it will be far from your cup of tea. But overall this is a solid community, with many things to recommend it as a family-friendly place to live.

One downside of living in Holtsville is that it can take a long time to commute to work. In Holtsville, the average commute to work is 31.40 minutes, which is quite a bit higher than the national average. On the other hand, local public transit is widely used in the town, so leaving the car at home and taking transit is often a viable alternative.

Despite being a small town, Holtsville has a lot of people using the train to get to and from work every day. Most of these people on the train are using it to get to good jobs in other cities.

The citizens of Holtsville are very well educated compared to the average community in the nation: 34.83% of adults in Holtsville have a bachelor's degree or even advanced degree.

The per capita income in Holtsville in 2022 was $53,061, which is upper middle income relative to New York, and wealthy relative to the rest of the US. This equates to an annual income of $212,244 for a family of four.

Holtsville is a very ethnically-diverse town. The people who call Holtsville home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Holtsville residents report their race to be White, followed by Black or African-American. Holtsville also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 18.28% of the town’s residents. Important ancestries of people in Holtsville include Italian, Irish, German, Polish, and English.

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