ZIP code 21648
Where is ZIP code 21648?
Madison, Maryland
Dorchester County · Standard ZIP code
ZIP code 21648 belongs to Madison, Maryland in Dorchester County. 21648 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 410, 443 and 667. About 172 people live in the 21648 area. The closest ZIP codes are 21669 (Taylors Island, 3.2 mi west), 21677 (Woolford, 3.6 mi northeast) and 21622 (Church Creek, 5.2 mi southeast).
| ZIP code | 21648 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Madison |
| State | Maryland (MD) |
| County | Dorchester County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 38.4782, -76.2412 map |
| 3-digit prefix | 216 |
Population and income in 21648
| Population | 172 · lower than 92% of Maryland ZIP codes |
|---|---|
| People per square mile | 18 · lower than 97% of Maryland ZIP codes |
| Median age | 61.4 years · higher than 94% of Maryland ZIP codes |
| Men / women | 55% / 45% |
| Income per person | $42,655 |
| Below the poverty line | 24% |
| Bachelor’s degree or higher | 13% of adults 25+ |
| Median home value | $195,000 · lower than 93% of Maryland ZIP codes |
| Housing units | 89 |
| Households | 70 (2.29 people on average) |
| Owners / renters | 91% / 8.6% |
| Land area | 9.38 sq mi (plus 4.69 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21648. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21648
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21669 | Taylors Island, MD | 3.2 mi W | PO Box only |
| 21677 | Woolford, MD | 3.6 mi NE | Standard |
| 21622 | Church Creek, MD | 5.2 mi SE | Standard |
| 21613 | Cambridge, MD | 10.2 mi NE | Standard |
| 21634 | Fishing Creek, MD | 10.8 mi S | Standard |
| 21626 | Crapo, MD | 12.4 mi SE | Standard |
| 20657 | Lusby, MD | 13 mi SW | Standard |
| 20685 | Saint Leonard, MD | 14.7 mi W | Standard |
| 20629 | Dowell, MD | 15.1 mi SW | PO Box only |
| 21654 | Oxford, MD | 15.1 mi N | Standard |
| 21675 | Wingate, MD | 15.5 mi SE | Standard |
| 21835 | Linkwood, MD | 15.6 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21648 or measure the distance to another ZIP code.
How to address mail to 21648
123 MAIN ST
MADISON MD 21648
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21648-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21648?
- 21648 is a Madison, Maryland ZIP code.
- What county is 21648 in?
- ZIP code 21648 is in Dorchester County, Maryland.
- What time zone is ZIP code 21648 in?
- 21648 is in the Eastern Time zone (America/New_York).
- What area code is 21648?
- Phone numbers in ZIP code 21648 use area codes 410, 443 and 667.
- What is the population of ZIP code 21648?
- About 172 people live in ZIP code 21648, according to the Census Bureau’s American Community Survey (2020–2024).
- What ZIP codes are near 21648?
- The nearest ZIP codes to 21648 are 21669 (Taylors Island, 3.2 miles), 21677 (Woolford, 3.6 miles), 21622 (Church Creek, 5.2 miles) and 21613 (Cambridge, 10.2 miles).