Watertown, MA ZIP codes
Watertown, Massachusetts has 3 ZIP codes, including 2 PO Box ZIPs. They are in Middlesex County.
- Population in these ZIPs
- 35,620
- Avg. median income
- $126,300population-weighted
- Typical home value
- $810,500population-weighted
- Metro area
- Boston-Cambridge-Newton, MA-NH
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Watertown, MA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 02471 PO Box | Middlesex County | — | — | — |
| 02472 | Middlesex County | 35,620 | $126,336 | $810,500 |
| 02477 PO Box | Middlesex County | — | — | — |
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 Watertown
- Newton 1 mi
- Belmont 2 mi
- Newtonville 2 mi
- Brighton 2 mi
- Allston 3 mi
- West Newton 3 mi
- Waltham 3 mi
- Arlington 3 mi
- Brookline 4 mi
- Cambridge 4 mi
- Auburndale 4 mi
- Waban 4 mi
Frequently asked questions
What county is Watertown, Massachusetts in?
Watertown ZIP codes are in Middlesex County.
Which Watertown ZIP codes are PO Boxes?
02471 and 02477 are PO Box or single-organization ZIP codes; they have no residential delivery area.