03803 ZIP Code — Portsmouth, NH
Rockingham County, New Hampshire
ZIP code 03803 is located in Portsmouth, New Hampshire, within Rockingham County. It covers approximately 0.00 square miles and serves a population of 0 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.
0
population
0.00
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
03803 ZIP code map
Cities in ZIP code 03803
Below are the cities the US Postal Service accepts for ZIP code 03803. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Portsmouth | Acceptable |
| Portsmouth | Preferred |
Nearby ZIP codes
03801 Portsmouth (1.9 mi)
03904 Kittery (3 mi)
03870 Rye (3.9 mi)
03905 Kittery Point (4.3 mi)
03840 Greenland (5.2 mi)
03903 Eliot (5.2 mi)
03862 North Hampton (7.2 mi)
03909 York (7.8 mi)
03885 Stratham (8 mi)
03824 Durham (8.8 mi)
03857 Newmarket (9.5 mi)
03820 Dover (10.4 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 33 |
| County FIPS | 015 |
| Geography | |
|---|---|
| Land area | 0.00 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 43.0719 |
| Longitude | -70.7632 |
| Timezone | Eastern (ET) |
| Area code | 603 |