ZIP code 03820
Where is ZIP code 03820?
Dover, New Hampshire
Strafford County · Standard ZIP code
ZIP code 03820 belongs to Dover, New Hampshire in Strafford County. 03820 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 207 and 603. About 33,440 people live in the 03820 area, where the median household income is $94,897. The closest ZIP codes are 03821 (Dover, 0.9 mi northeast), 03822 (Dover, 0.9 mi northeast) and 03823 (Madbury, 3 mi west).
| ZIP code | 03820 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Dover |
| State | New Hampshire (NH) |
| County | Strafford County |
| Time zone | Eastern Time · now |
| Area codes | 207, 603 |
| Coordinates | 43.1888, -70.8868 map |
| 3-digit prefix | 038 |
Population and income in 03820
| Population | 33,440 · higher than 98% of New Hampshire ZIP codes |
|---|---|
| People per square mile | 1,226 · higher than 95% of New Hampshire ZIP codes |
| Median age | 36.9 years · lower than 93% of New Hampshire ZIP codes |
| Men / women | 50% / 51% |
| Median household income | $94,897 · lower than 54% of New Hampshire ZIP codes |
| Income per person | $52,784 |
| Below the poverty line | 8.3% |
| Bachelor’s degree or higher | 52% of adults 25+ |
| Median home value | $436,100 · higher than 71% of New Hampshire ZIP codes |
| Median rent | $1,607 a month |
| Housing units | 15,453 |
| Households | 15,062 (2.16 people on average) |
| Owners / renters | 53% / 47% |
| Land area | 27.28 sq mi (plus 2.32 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 03820. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 03820
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 03821 | Dover, NH | 0.9 mi NE | PO Box only |
| 03822 | Dover, NH | 0.9 mi NE | Unique |
| 03823 | Madbury, NH | 3 mi W | Standard |
| 03869 | Rollinsford, NH | 3.8 mi NE | Standard |
| 03878 | Somersworth, NH | 4.4 mi N | Standard |
| 03824 | Durham, NH | 5.2 mi S | Standard |
| 03908 | South Berwick, ME | 5.8 mi NE | Standard |
| 03903 | Eliot, ME | 6.6 mi SE | Standard |
| 03839 | Rochester, NH | 7 mi NW | Standard |
| 03901 | Berwick, ME | 7.2 mi N | Standard |
| 03861 | Lee, NH | 7.3 mi SW | Standard |
| 03825 | Barrington, NH | 7.7 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 03820 or measure the distance to another ZIP code.
How to address mail to 03820
123 MAIN ST
DOVER NH 03820
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (03820-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Dover, NH
All Dover ZIP codes with population and income →
Questions
- What city is ZIP code 03820?
- 03820 is a Dover, New Hampshire ZIP code.
- What county is 03820 in?
- ZIP code 03820 is in Strafford County, New Hampshire.
- What time zone is ZIP code 03820 in?
- 03820 is in the Eastern Time zone (America/New_York).
- What area code is 03820?
- Phone numbers in ZIP code 03820 use area codes 207 and 603.
- What is the population of ZIP code 03820?
- About 33,440 people live in ZIP code 03820, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 03820?
- The median household income in 03820 is $94,897 a year, lower than 54% of New Hampshire ZIP codes.
- What ZIP codes are near 03820?
- The nearest ZIP codes to 03820 are 03821 (Dover, 0.9 miles), 03822 (Dover, 0.9 miles), 03823 (Madbury, 3 miles) and 03869 (Rollinsford, 3.8 miles).