Sandown, NH ZIP code
The ZIP code for Sandown, New Hampshire is 03873. It is in Rockingham County.
- Population in these ZIPs
- 6,628
- Avg. median income
- $135,000population-weighted
- Typical home value
- $560,300population-weighted
- Metro area
- Boston-Cambridge-Newton, MA-NH
Loading map…
Click anywhere on the map to see which ZIP code it's in.
Sandown, NH ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 03873 | 6,628 | $135,040 | $560,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Sandown
Frequently asked questions
What is the ZIP code for Sandown, NH?
The ZIP code for Sandown, NH is 03873.
What county is Sandown, New Hampshire in?
Sandown ZIP codes are in Rockingham County.