ZIP code 20629
Where is ZIP code 20629?
Dowell, Maryland
Calvert County · PO Box only ZIP code
ZIP code 20629 belongs to Dowell, Maryland in Calvert County. 20629 is a PO Box only ZIP code: it is used for post office boxes at the Dowell post office, not for street addresses. It is in the Eastern Time zone and uses area codes 410, 443 and 667. About 1,150 people live in the 20629 area, where the median household income is $87,389. The closest ZIP codes are 20688 (Solomons, 0.8 mi southwest), 20657 (Lusby, 2.3 mi northeast) and 20670 (Patuxent River, 4 mi south).
| ZIP code | 20629 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Dowell |
| State | Maryland (MD) |
| County | Calvert County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 38.3364, -76.4524 map |
| 3-digit prefix | 206 |
Population and income in 20629
| Population | 1,150 · lower than 73% of Maryland ZIP codes |
|---|---|
| People per square mile | 1,371 · higher than 69% of Maryland ZIP codes |
| Median age | 58.1 years · higher than 90% of Maryland ZIP codes |
| Men / women | 52% / 48% |
| Median household income | $87,389 · lower than 66% of Maryland ZIP codes |
| Income per person | $60,505 |
| Below the poverty line | 1.0% |
| Bachelor’s degree or higher | 41% of adults 25+ |
| Median home value | $403,100 · lower than 53% of Maryland ZIP codes |
| Housing units | 655 |
| Households | 548 (1.97 people on average) |
| Owners / renters | 97% / 3.3% |
| Land area | 0.84 sq mi (plus 0.17 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 20629. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 20629
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 20688 | Solomons, MD | 0.8 mi SW | Standard |
| 20657 | Lusby, MD | 2.3 mi NE | Standard |
| 20670 | Patuxent River, MD | 4 mi S | Standard |
| 20619 | California, MD | 4.9 mi SW | Standard |
| 20634 | Great Mills, MD | 5.3 mi SW | Standard |
| 20653 | Lexington Park, MD | 6 mi S | Standard |
| 20636 | Hollywood, MD | 6.1 mi W | Standard |
| 20615 | Broomes Island, MD | 7.6 mi NW | Standard |
| 20667 | Park Hall, MD | 8.2 mi S | Standard |
| 20620 | Callaway, MD | 8.4 mi SW | Standard |
| 20685 | Saint Leonard, MD | 8.5 mi N | Standard |
| 20635 | Helen, MD | 8.6 mi W | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20629 or measure the distance to another ZIP code.
How to address mail to 20629
PO BOX 123
DOWELL MD 20629
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20629-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 20629?
- 20629 is a Dowell, Maryland ZIP code.
- What county is 20629 in?
- ZIP code 20629 is in Calvert County, Maryland.
- What time zone is ZIP code 20629 in?
- 20629 is in the Eastern Time zone (America/New_York).
- What area code is 20629?
- Phone numbers in ZIP code 20629 use area codes 410, 443 and 667.
- What is the population of ZIP code 20629?
- About 1,150 people live in ZIP code 20629, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 20629?
- The median household income in 20629 is $87,389 a year, lower than 66% of Maryland ZIP codes.
- Can I use 20629 for a street address?
- No. 20629 is only for PO Boxes. Street addresses in Dowell use another ZIP code.
- What ZIP codes are near 20629?
- The nearest ZIP codes to 20629 are 20688 (Solomons, 0.8 miles), 20657 (Lusby, 2.3 miles), 20670 (Patuxent River, 4 miles) and 20619 (California, 4.9 miles).