Zip code 03803: Portsmouth, New Hampshire
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 03803
03803 is a non-residential zip code for Portsmouth, New Hampshire (Rockingham County). It has no delivery area of its own, so the Census Bureau doesn't publish population or housing figures for it. Codes like this are usually assigned to post office boxes, or to a single organization such as a university, hospital, government agency or large company that gets enough mail to need its own zip code.
For a picture of the people who live around 03803, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Portsmouth
- State
- New Hampshire
- County
- Rockingham County
- Center point
- 43.0718° N, 70.7626° W
- Time zone
- Eastern Time (UTC-5, UTC-4 in summer)
- Zip type
- PO box or unique zip
Zip codes near 03803
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 03802 | Portsmouth, NH · PO box | 0 mi | — |
| 03804 | Portsmouth, NH · PO box | 0 mi | — |
| 03801 | Portsmouth, NH | 2.2 mi | $106,756 |
| 03854 | New Castle, NH | 2.4 mi | $176,953 |
| 03904 | Kittery, ME | 3 mi | $85,084 |
| 03870 | Rye, NH | 3.6 mi | $140,938 |
| 03840 | Greenland, NH | 4.7 mi | $162,837 |
| 03903 | Eliot, ME | 5.2 mi | $101,522 |
| 03871 | Rye Beach, NH | 6.3 mi | $142,115 |
| 03862 | North Hampton, NH | 7.2 mi | $144,583 |
| 03911 | York Harbor, ME | 7.7 mi | $156,299 |
| 03909 | York, ME | 7.8 mi | $115,608 |
Questions about 03803
What city is zip code 03803?
03803 is assigned to Portsmouth, New Hampshire. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 03803 in?
03803 is in Rockingham County, New Hampshire.
What time zone is 03803 in?
03803 is in Eastern Time.
What zip codes are near 03803?
The closest zip codes to 03803 are 03802, 03804, 03801, 03854, 03904.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 03803, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.