ZIP code 20830
Where is ZIP code 20830?
Olney, Maryland
Montgomery County · PO Box only ZIP code
ZIP code 20830 belongs to Olney, Maryland in Montgomery County. 20830 is a PO Box only ZIP code: it is used for post office boxes at the Olney post office, not for street addresses. It is in the Eastern Time zone and uses area code 240. The closest ZIP codes are 20832 (Olney, 0.5 mi west), 20860 (Sandy Spring, 2 mi east) and 20833 (Brookeville, 2.2 mi north).
| ZIP code | 20830 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Olney |
| State | Maryland (MD) |
| County | Montgomery County |
| Time zone | Eastern Time · now |
| Area code | 240 |
| Coordinates | 39.1552, -77.0667 map |
| 3-digit prefix | 208 |
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 20830
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 20832 | Olney, MD | 0.5 mi W | Standard |
| 20860 | Sandy Spring, MD | 2 mi E | Standard |
| 20833 | Brookeville, MD | 2.2 mi N | Standard |
| 20862 | Brinklow, MD | 3.3 mi NE | Standard |
| 20861 | Ashton, MD | 4 mi E | Standard |
| 20905 | Silver Spring, MD | 4.3 mi SE | Standard |
| 20855 | Derwood, MD | 4.6 mi W | Standard |
| 20897 | Suburb Maryland Fac, MD | 4.7 mi S | Unique |
| 20853 | Rockville, MD | 4.8 mi S | Standard |
| 20906 | Silver Spring, MD | 4.9 mi S | Standard |
| 20868 | Spencerville, MD | 5.6 mi SE | Standard |
| 20777 | Highland, MD | 5.6 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20830 or measure the distance to another ZIP code.
How to address mail to 20830
PO BOX 123
OLNEY MD 20830
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20830-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Olney, MD
All Olney ZIP codes with population and income →
Questions
- What city is ZIP code 20830?
- 20830 is a Olney, Maryland ZIP code.
- What county is 20830 in?
- ZIP code 20830 is in Montgomery County, Maryland.
- What time zone is ZIP code 20830 in?
- 20830 is in the Eastern Time zone (America/New_York).
- What area code is 20830?
- Phone numbers in ZIP code 20830 use area code 240.
- Can I use 20830 for a street address?
- No. 20830 is only for PO Boxes. Street addresses in Olney use 20832.
- What ZIP codes are near 20830?
- The nearest ZIP codes to 20830 are 20832 (Olney, 0.5 miles), 20860 (Sandy Spring, 2 miles), 20833 (Brookeville, 2.2 miles) and 20862 (Brinklow, 3.3 miles).