Home & Property · Long Island
A Commack address may belong to Smithtown or Huntington
Commack crosses two town governments, so the street address must be matched before choosing a local office or form.
Published July 14, 2026 · Last verified July 14, 2026
Commack is one community name with two town governments underneath it. Part of the Census place is in the Town of Smithtown, and part is in the Town of Huntington. A Commack mailing address alone does not settle which town owns the local record.
Land questions make the split especially important. Smithtown and Huntington keep separate town offices, forms, and local records. Starting with the wrong town can produce a perfectly polite answer for somebody else’s parcel.
Use the exact street address and tax parcel information before choosing an office. For a home project, identify the town before downloading a permit form. For an assessment, tax bill, certificate, or property record, confirm the municipality shown on the official record rather than relying on the ZIP code or school district.
The Town of Smithtown includes Commack among the communities within its borders. Huntington also serves Commack addresses on its side of the line. The federal Census block assignment files confirm that the Commack Census place crosses both towns.
This is not a sign that the address is wrong. Long Island community names, post offices, school districts, fire districts, and town lines often answer different questions. In Commack, the clean first step is simply: street address first, town office second.