ZIP code 20621
Where is ZIP code 20621?
Chaptico, Maryland
St. Mary's County · Standard ZIP code
ZIP code 20621 belongs to Chaptico, Maryland in St. Mary's County. 20621 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 227, 240 and 301. About 958 people live in the 20621 area. The closest ZIP codes are 20624 (Clements, 3.2 mi east), 20618 (Bushwood, 4.6 mi south) and 20660 (Morganza, 5 mi east).
| ZIP code | 20621 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Chaptico |
| Also accepted | Maddox |
| State | Maryland (MD) |
| County | St. Mary's County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301 |
| Coordinates | 38.351, -76.7833 map |
| 3-digit prefix | 206 |
Population and income in 20621
| Population | 958 · lower than 75% of Maryland ZIP codes |
|---|---|
| People per square mile | 69 · lower than 84% of Maryland ZIP codes |
| Median age | 63 years · higher than 95% of Maryland ZIP codes |
| Men / women | 56% / 44% |
| Income per person | $54,408 |
| Below the poverty line | 20% |
| Bachelor’s degree or higher | 16% of adults 25+ |
| Median home value | $481,100 · higher than 66% of Maryland ZIP codes |
| Housing units | 611 |
| Households | 534 (1.79 people on average) |
| Owners / renters | 100% / 0.0% |
| Land area | 13.86 sq mi (plus 0.11 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 20621. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 20621
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 20624 | Clements, MD | 3.2 mi E | Standard |
| 20618 | Bushwood, MD | 4.6 mi S | Standard |
| 20660 | Morganza, MD | 5 mi E | PO Box only |
| 20609 | Avenue, MD | 5.1 mi SE | Standard |
| 20656 | Loveville, MD | 5.4 mi E | Standard |
| 20661 | Mount Victoria, MD | 5.5 mi W | PO Box only |
| 20682 | Rock Point, MD | 5.8 mi SW | PO Box only |
| 20659 | Mechanicsville, MD | 6.3 mi NE | Standard |
| 20627 | Compton, MD | 6.7 mi SE | PO Box only |
| 20625 | Cobb Island, MD | 7.1 mi SW | PO Box only |
| 20664 | Newburg, MD | 7.4 mi W | Standard |
| 20606 | Abell, MD | 7.4 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20621 or measure the distance to another ZIP code.
How to address mail to 20621
123 MAIN ST
CHAPTICO MD 20621
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts MADDOX as the city name for 20621. Adding the 4-digit ZIP+4 code (20621-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 20621?
- 20621 is a Chaptico, Maryland ZIP code. Maddox is also accepted as the city name.
- What county is 20621 in?
- ZIP code 20621 is in St. Mary's County, Maryland.
- What time zone is ZIP code 20621 in?
- 20621 is in the Eastern Time zone (America/New_York).
- What area code is 20621?
- Phone numbers in ZIP code 20621 use area codes 227, 240 and 301.
- What is the population of ZIP code 20621?
- About 958 people live in ZIP code 20621, according to the Census Bureau’s American Community Survey (2020–2024).
- What ZIP codes are near 20621?
- The nearest ZIP codes to 20621 are 20624 (Clements, 3.2 miles), 20618 (Bushwood, 4.6 miles), 20660 (Morganza, 5 miles) and 20609 (Avenue, 5.1 miles).