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.

In Holtsville, however, the average commute to work is quite long. On average, people spend 30.99 minutes each day getting to work, which is significantly higher than the national average. One bright side is that local public transit is widely used, so it may be an option to avoid the headache of driving in the heavy traffic by leaving the car at home and taking transit.

In Holtsville, a lot of people use the train to get to work every day though Holtsville is a relatively small town. Those that ride the train are primarily traveling out of town to good jobs in other cities.

The overall 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, and the average American community has 21.84%.

The per capita income in Holtsville in 2022 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.