US ZIP Code
03820

Dover, NH

Strafford County  ·  New Hampshire

● Active
👥 33,150 Population ↑ 5% since 2019
💰 $92,793 Median HH Income
▲ 22% above avg ↑ 30% since 2019
🎂 37.6 Median Age ↑ 4% since 2019
🏠 $397,900 Median Home Value
▲ 43% above avg ↑ 50% since 2019
🎓 61.5% College Grads
▲ 59% above avg
📊 4.2% Unemployment
▼ 14% below avg ↑ 29% since 2019
ZIP Code Details
ZIP Code03820
CityDover
StateNew Hampshire (NH)
CountyStrafford County
Area Code603
Elevation92 ft
Latitude43.18636
Longitude-70.883623
TimezoneNew York (DST)
FIPS33017
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.4% (16,366) Female 50.6% (16,784) ♀

Race & Ethnicity

White: 85.8%Hispanic: 3.7%Black: 1.2%Asian: 3.3%Other: 5.3%Race
White85.8%
Hispanic3.7%
Black1.2%
Asian3.3%
Other5.3%

Age Breakdown

Under 5
5%
5–17
12%
18–24
11%
25–44
32%
45–64
23%
65+
8%

Key Indicators

Median Age37.6 yrs ↑ 4% since 2019
Avg Household Size2.14
Below Poverty7.8% ▼ 22% below avg
College Grads61.5% ▲ 59% above avg
Unemployment4.2% ▼ 14% below avg
No HS Diploma43 (0.2%)
HS Graduate4,159 (18.1%)
Some College2,279 (9.9%)
Associates2,366 (10.3%)
Bachelors2,636 (11.5%)
Graduate Degree11,487 (50%)

Education

No HS: 0.2%HS Grad: 18.1%Some College: 9.9%Associates: 10.3%Bachelors: 11.5%Graduate: 50%Edu
No HS0.2%
HS Grad18.1%
Some College9.9%
Associates10.3%
Bachelors11.5%
Graduate50.0%
Housing & Income

Housing Tenure

Owner: 51.4%Renter: 48.6%Tenure
Owner51.4%
Renter48.6%

Home Value Distribution

Under $50k
2%
$50k–100k
2%
$100k–150k
3%
$150k–200k
1%
$200k–300k
18%
$300k–500k
44%
Over $500k
31%

Financials

Median HH Income$92,793 ▲ 22% above avg ↑ 30% since 2019
Median Home Value$397,900 ▲ 43% above avg ↑ 50% since 2019
Home/Income Ratio4.3x (nat avg ~3.5x)
Median Rent$1,540/mo ↑ 33% since 2019
Total Units15,460
Vacant Units439
Avg HH Size2.14

Income Distribution

Under $25k
11%
$25k–50k
12%
$50k–75k
15%
$75k–100k
13%
$100k–150k
20%
$150k–200k
14%
Over $200k
15%
Employment & Commute

How People Get to Work

Drove Alone
76%
Public Transit
3%
Walked
2%
Work From Home
19%

Commute Time

Under 15 min
30%
15–30 min
47%
30–45 min
15%
Over 45 min
8%
Housing Stock

Year Built

Before 1940
0%
1940s–1950s
12%
1960s–1970s
13%
1980s–1990s
14%
2000+
61%

Summary

Total Units15,460
Vacant439
Owner Occupied51.4%
Renter Occupied48.6%
Avg HH Size2.14
Frequently Asked Questions
ZIP code 03820 is in Dover, NH, in Strafford County.
ZIP code 03820 is located in New Hampshire (NH).
ZIP code 03820 is in Strafford County, NH.
ZIP 03820 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 03820 is 33,150 people (ACS 2023).
The median household income in ZIP code 03820 is $92,793 (ACS 2023).
The median home value in ZIP 03820 is $397,900 (ACS 2023).
About ZIP Code 03820

ZIP code 03820 is located in Dover, New Hampshire, within Strafford County. With a population of 33,150, this is a moderately populated ZIP code with a relatively young community — the median age is 37.6 years. Economically, 03820 is a middle-income ZIP code: the median household income of $92,793 is above the national average.

Real estate in ZIP code 03820 represents a mid-range housing market. The median home value of $397,900 is above the national average. Renters can expect to pay around $1,540 per month in median rent. The area has a relatively balanced mix of owners (51.4%) and renters (48.6%). Median home values have increased by 50% since 2019.

The population of 03820 is primarily White (85.79%). Residents are highly educated — 61.5% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 7.8%. Household income has grown by 30% since 2019.

The unemployment rate in 03820 stands at 4.2%, which is near the national average. About 18% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 72%.

Overall, ZIP code 03820 in Dover, NH is characterized as middle-income, highly educated, and a relatively young community. With 33,150 residents, a median household income of $92,793, and a median home value of $397,900, it offers a clear picture of life in this part of New Hampshire.