The postal code of Holtsville which is listed in our database is 11742. Our records often include geographical coordinates of Holtsville and it's corresponding postal code.
In the result box below, you can find the postal code of Holtsville and it's location on the map if we have the location information available.
Every postal code is also located in a region or a district, in case we know the district or region of the city it will too be listed in the results.
All kinds of additional information we have on Holtsville may also be present such as geographical data, historical records or news about Holtsville and 11742 in general.