What ZIP codes serve Dover, NH?

Dover, NH is served by the following ZIP codes: 03820, 03823.

What is the average temperature in Dover?

In Dover, NH, the average annual high temperature is 57°F and the average low is 37°F, with 47.8 inches of annual precipitation.

How do I verify a Dover address?

Use MailColt's free address verification tool to instantly check any Dover, NH address for deliverability. Enter the street address, city, state, and ZIP code to get a confidence score and standardized formatting.

Home / Locations / New Hampshire / Dover

Verify Dover, NH Addresses

Check any address in Dover, New Hampshire for deliverability. Get instant verification with confidence scores.

Dover is the #9 city in New Hampshire by population, with a population of 35,271 across 2 ZIP codes. Average temperatures range from 37.0°F to 57.1°F, with 47.8" of annual precipitation. With 146 establishments, Healthcare is the dominant industry.

ZIP Codes

Verify Address in Dover

Check if a Dover, NH address is valid and deliverable.

Verify Dover Address

Income by ZIP Code in Dover, NH

ZIP Code	Population	Median Income	Median Home Value	Median Rent
03820	33,150	$92,793	$397,900	$1,540
03823	2,121	$144,635	$459,300	$1,549

Climate in Dover, NH

Average monthly temperatures and precipitation.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg High	32°	36°	43°	55°	66°	75°	80°	80°	72°	60°	48°	38°
Avg Low	15°	16°	24°	34°	44°	53°	59°	57°	50°	39°	30°	22°
Precip	3.4"	3.5"	4.4"	4.2"	3.8"	4.3"	3.8"	3.4"	3.9"	4.8"	4.0"	4.5"
Snow	-	-	-	-	-	-	-	-	-	-	-	-

Top Industries in Dover, NH

Industry	Establishments
Health care and social assistance	146
Accommodation and food services	114
Retail trade	102
Other services (except public administration)	95
Professional, scientific, and technical services	93
Construction	81
Administrative and support and waste management and remediation services	72
Finance and insurance	57
Wholesale trade	41
Manufacturing	40

Historic Landmarks in Dover

Dover has 18 properties listed on the National Register of Historic Places, including:

Back River Farm — Bay View Rd.
Cocheco Mills — Main & Washington Sts.
County Farm Bridge — NW of Dover on County Farm Rd.
First Parish Church — 218 Central Ave.
First Parish Church Site-Dover Point — Dover Point Rd.
Garrison Hill Park and Tower — Abbie Sawyer Memorial Dr.
Hale, William, House — 5 Hale St.
Public Market — 93 Washington St.
Reade, Michael, House — 43 Main St.
Religious Society of Friends Meetinghouse — 141 Central Ave.

All 2 ZIP Codes Serving Dover, NH

Other Cities in New Hampshire

Manchester Nashua Londonderry Concord South Hooksett

How to Verify a Dover, NH Address

Our verification checks:

Street name and number validity
ZIP code accuracy for Dover
Address deliverability status
USPS-standard formatting