Holtsville, New York — interactive Google street map, satellite and terrain views, Street View, live National Weather Service conditions and 7-day forecasts, real-time local and world news, and an editorial description of Holtsville, Suffolk County.
| City | Holtsville |
| State | New York (NY) |
| County | Suffolk |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.815376 |
| Longitude | -73.045108 |
| Population | 19,344 |
| Density | 1045.5 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 11742 |
| Area Code | 516 |
| County Seat | Riverhead |
| School District | Sachem Central School District |
Holtsville is a locality in Suffolk County, New York, United States. It has a population of 19,344. The population density is 1045.5 people per km². Holtsville is located at 40.8154°N, 73.0451°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 11742.
Holtsville rests on a landscape shaped by glacial retreat, its terrain a subtle interplay of modest rises and shallow hollows, a gentle swell in the otherwise relatively flat expanse of central Long Island. It lies 1.8 miles east of Holbrook, NY (from Holbrook, NY: bearing 83°T), and is situated 7.2 miles west-north-west of Brookhaven. Here, the air often carries the faint, sweet scent of pine needles and damp earth, a testament to the verdant woodlands that still embrace pockets of the settlement. Streets, lined with mature oaks and maples that cast dappled shadows in the afternoon sun, wind through neighborhoods where manicured lawns give way to the wilder edges of nature. The sky above Holtsville, particularly at dusk, can unfurl in breathtaking displays of bruised purples and fiery oranges, a fleeting glory that washes over the quiet streets and the distant hum of the suburban sprawl. The history of Holtsville is interwoven with the agricultural past of Suffolk County, a legacy hinted at by the occasional farm stand or the names of roads that echo with a farming heritage. Though the fields have largely yielded to residential development, the spirit of enterprise remains, now channeled into a diverse local economy that supports a vibrant community. Holtsville is recognized for its commitment to public spaces, particularly the sprawling preserve that offers a sanctuary for local flora and fauna, a green lung within the developed landscape. This dedication to preserving natural beauty, alongside the conveniences of modern suburban life, defines the character of Holtsville, a place where the echoes of the past meet the present in a comfortable, unassuming coexistence.
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This page provides an interactive Google map of Holtsville, New York with street, satellite and terrain views and integrated Street View imagery. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Holtsville and Suffolk County.
Detailed location data for Holtsville includes the ZIP code (11742), telephone area code (516), county seat of Suffolk County (Riverhead), and school district assignment (Sachem Central School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Holtsville is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | June 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |