ZIP code 21543
Where is ZIP code 21543?
Midlothian, Maryland
Allegany County · PO Box only ZIP code
ZIP code 21543 belongs to Midlothian, Maryland in Allegany County. 21543 is a PO Box only ZIP code: it is used for post office boxes at the Midlothian post office, not for street addresses. It is in the Eastern Time zone and uses area codes 227, 240 and 301. About 185 people live in the 21543 area. The closest ZIP codes are 21532 (Frostburg, 1.5 mi northeast), 21528 (Eckhart Mines, 2.9 mi northeast) and 21542 (Midland, 3.1 mi south).
| ZIP code | 21543 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Midlothian |
| State | Maryland (MD) |
| County | Allegany County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301 |
| Coordinates | 39.6343, -78.95 map |
| 3-digit prefix | 215 |
Population and income in 21543
| Population | 185 · lower than 92% of Maryland ZIP codes |
|---|---|
| People per square mile | 75 · lower than 82% of Maryland ZIP codes |
| Median age | 30.9 years · lower than 95% of Maryland ZIP codes |
| Men / women | 44% / 56% |
| Income per person | $53,144 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 15% of adults 25+ |
| Median home value | $190,200 · lower than 93% of Maryland ZIP codes |
| Median rent | $775 a month |
| Housing units | 122 |
| Households | 122 (1.52 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 2.47 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21543. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21543
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21532 | Frostburg, MD | 1.5 mi NE | Standard |
| 21528 | Eckhart Mines, MD | 2.9 mi NE | PO Box only |
| 21542 | Midland, MD | 3.1 mi S | PO Box only |
| 21539 | Lonaconing, MD | 4.6 mi SW | Standard |
| 21545 | Mount Savage, MD | 6 mi NE | Standard |
| 21502 | Cumberland, MD | 6.1 mi SE | Standard |
| 21505 | Cumberland, MD | 6.3 mi SE | PO Box only |
| 21556 | Pinto, MD | 7.1 mi SE | PO Box only |
| 21521 | Barton, MD | 8.1 mi SW | Standard |
| 21557 | Rawlings, MD | 8.1 mi S | Standard |
| 15564 | Wellersburg, PA | 8.7 mi NE | Standard |
| 21524 | Corriganville, MD | 8.9 mi NE | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21543 or measure the distance to another ZIP code.
How to address mail to 21543
PO BOX 123
MIDLOTHIAN MD 21543
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21543-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21543?
- 21543 is a Midlothian, Maryland ZIP code.
- What county is 21543 in?
- ZIP code 21543 is in Allegany County, Maryland.
- What time zone is ZIP code 21543 in?
- 21543 is in the Eastern Time zone (America/New_York).
- What area code is 21543?
- Phone numbers in ZIP code 21543 use area codes 227, 240 and 301.
- What is the population of ZIP code 21543?
- About 185 people live in ZIP code 21543, according to the Census Bureau’s American Community Survey (2020–2024).
- Can I use 21543 for a street address?
- No. 21543 is only for PO Boxes. Street addresses in Midlothian use another ZIP code.
- What ZIP codes are near 21543?
- The nearest ZIP codes to 21543 are 21532 (Frostburg, 1.5 miles), 21528 (Eckhart Mines, 2.9 miles), 21542 (Midland, 3.1 miles) and 21539 (Lonaconing, 4.6 miles).