ZIP code 20643
Where is ZIP code 20643?
Ironsides, Maryland
Charles County · PO Box only ZIP code
ZIP code 20643 belongs to Ironsides, Maryland in Charles County. 20643 is a PO Box only ZIP code: it is used for post office boxes at the Ironsides post office, not for street addresses. It is in the Eastern Time zone and uses area code 240. The closest ZIP codes are 20693 (Welcome, 3.8 mi southeast), 20658 (Marbury, 4.1 mi north) and 20662 (Nanjemoy, 4.8 mi southwest).
| ZIP code | 20643 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Ironsides |
| State | Maryland (MD) |
| County | Charles County |
| Time zone | Eastern Time · now |
| Area code | 240 |
| Coordinates | 38.5039, -77.1483 map |
| 3-digit prefix | 206 |
The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 20643
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 20693 | Welcome, MD | 3.8 mi SE | Standard |
| 20658 | Marbury, MD | 4.1 mi N | Standard |
| 20662 | Nanjemoy, MD | 4.8 mi SW | Standard |
| 20677 | Port Tobacco, MD | 5.8 mi E | Standard |
| 20640 | Indian Head, MD | 6.7 mi N | Standard |
| 22135 | Quantico, VA | 8 mi W | Unique |
| 20646 | La Plata, MD | 8.9 mi E | Standard |
| 22026 | Dumfries, VA | 8.9 mi NW | Standard |
| 20604 | Waldorf, MD | 9 mi E | PO Box only |
| 20675 | Pomfret, MD | 9.4 mi NE | Standard |
| 20611 | Bel Alton, MD | 9.4 mi E | Standard |
| 22172 | Triangle, VA | 10 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20643 or measure the distance to another ZIP code.
How to address mail to 20643
PO BOX 123
IRONSIDES MD 20643
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20643-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 20643?
- 20643 is a Ironsides, Maryland ZIP code.
- What county is 20643 in?
- ZIP code 20643 is in Charles County, Maryland.
- What time zone is ZIP code 20643 in?
- 20643 is in the Eastern Time zone (America/New_York).
- What area code is 20643?
- Phone numbers in ZIP code 20643 use area code 240.
- Can I use 20643 for a street address?
- No. 20643 is only for PO Boxes. Street addresses in Ironsides use another ZIP code.
- What ZIP codes are near 20643?
- The nearest ZIP codes to 20643 are 20693 (Welcome, 3.8 miles), 20658 (Marbury, 4.1 miles), 20662 (Nanjemoy, 4.8 miles) and 20677 (Port Tobacco, 5.8 miles).