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.

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 30.99 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 education level of Holtsville citizens is substantially higher than the typical US community, as 33.03% of adults in Holtsville have at least a bachelor's degree.

The per capita income in Holtsville in 2018 was $49,255, 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 $197,020 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 16.38% of the town’s residents. Important ancestries of people in Holtsville include Italian, Irish, German, English, and Polish.

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