What city is ZIP code 03803?

03803 is a Portsmouth, New Hampshire ZIP code.

What county is 03803 in?

ZIP code 03803 is in Rockingham County, New Hampshire.

What time zone is ZIP code 03803 in?

03803 is in the Eastern Time zone (America/New_York).

What area code is 03803?

Phone numbers in ZIP code 03803 use area code 603.

Can I use 03803 for a street address?

Only for mail to the organization it is assigned to. Other addresses in Portsmouth use a standard ZIP code.

What ZIP codes are near 03803?

The nearest ZIP codes to 03803 are 03802 (Portsmouth, 0 miles), 03804 (Portsmouth, 0 miles), 03904 (Kittery, 1.7 miles) and 03801 (Portsmouth, 2.2 miles).

ZIP code 03803

Where is ZIP code 03803?

Portsmouth, New Hampshire

Rockingham County · Unique ZIP code

ZIP code 03803 belongs to Portsmouth, New Hampshire in Rockingham County. 03803 is a unique ZIP code assigned to a single organization (Air National Guard) that gets a lot of mail. It is in the Eastern Time zone and uses area code 603. The closest ZIP codes are 03802 (Portsmouth, 0 mi north), 03804 (Portsmouth, 0 mi north) and 03904 (Kittery, 1.7 mi northeast).

ZIP code	03803
Type	Unique ZIP code for a single organization
Status	Active
City	Portsmouth
State	New Hampshire (NH)
County	Rockingham County
Time zone	Eastern Time · now
Area code	603
Coordinates	43.0718, -70.7626 map
3-digit prefix	038

The Census Bureau doesn’t publish population figures for unique ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.

ZIP codes near 03803

ZIP code	City	Distance	Type
03802	Portsmouth, NH	0 mi N	PO Box only
03804	Portsmouth, NH	0 mi N	PO Box only
03904	Kittery, ME	1.7 mi NE	Standard
03801	Portsmouth, NH	2.2 mi W	Standard
03854	New Castle, NH	2.2 mi E	PO Box only
03905	Kittery Point, ME	3.1 mi NE	Standard
03903	Eliot, ME	4.2 mi N	Standard
03870	Rye, NH	4.3 mi S	Standard
03840	Greenland, NH	5 mi SW	Standard
03871	Rye Beach, NH	6.3 mi S	PO Box only
03862	North Hampton, NH	7.3 mi SW	Standard
03911	York Harbor, ME	7.4 mi NE	PO Box only

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 03803 or measure the distance to another ZIP code.

How to address mail to 03803

JANE SMITH
123 MAIN ST
PORTSMOUTH NH 03803

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (03803-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Portsmouth, NH

All Portsmouth ZIP codes with population and income →

Questions

What city is ZIP code 03803?: 03803 is a Portsmouth, New Hampshire ZIP code.
What county is 03803 in?: ZIP code 03803 is in Rockingham County, New Hampshire.
What time zone is ZIP code 03803 in?: 03803 is in the Eastern Time zone (America/New_York).
What area code is 03803?: Phone numbers in ZIP code 03803 use area code 603.
Can I use 03803 for a street address?: Only for mail to the organization it is assigned to. Other addresses in Portsmouth use a standard ZIP code.
What ZIP codes are near 03803?: The nearest ZIP codes to 03803 are 03802 (Portsmouth, 0 miles), 03804 (Portsmouth, 0 miles), 03904 (Kittery, 1.7 miles) and 03801 (Portsmouth, 2.2 miles).