ZIP code 91021
Where is ZIP code 91021?
Montrose, California
Los Angeles County · PO Box only ZIP code
ZIP code 91021 belongs to Montrose, California in Los Angeles County. 91021 is a PO Box only ZIP code: it is used for post office boxes at the Montrose post office, not for street addresses. It is in the Pacific Time zone and uses area code 818. The closest ZIP codes are 91020 (Montrose, 0.5 mi northwest), 91046 (Verdugo City, 0.9 mi west) and 91208 (Glendale, 1.2 mi southwest).
| ZIP code | 91021 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Montrose |
| State | California (CA) |
| County | Los Angeles County |
| Time zone | Pacific Time · now |
| Area code | 818 |
| Coordinates | 34.2064, -118.2242 map |
| 3-digit prefix | 910 |
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 91021
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 91020 | Montrose, CA | 0.5 mi NW | Standard |
| 91046 | Verdugo City, CA | 0.9 mi W | PO Box only |
| 91208 | Glendale, CA | 1.2 mi SW | Standard |
| 91011 | La Canada Flintridge, CA | 1.5 mi NE | Standard |
| 91224 | La Crescenta, CA | 1.5 mi NW | PO Box only |
| 91214 | La Crescenta, CA | 2.1 mi NW | Standard |
| 91012 | La Canada Flintridge, CA | 2.1 mi E | PO Box only |
| 91207 | Glendale, CA | 3.1 mi SW | Standard |
| 91206 | Glendale, CA | 3.5 mi S | Standard |
| 91202 | Glendale, CA | 3.7 mi SW | Standard |
| 91203 | Glendale, CA | 4.4 mi SW | Standard |
| 91201 | Glendale, CA | 4.5 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 91021 or measure the distance to another ZIP code.
How to address mail to 91021
PO BOX 123
MONTROSE CA 91021
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (91021-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Montrose, CA
All Montrose ZIP codes with population and income →
Questions
- What city is ZIP code 91021?
- 91021 is a Montrose, California ZIP code.
- What county is 91021 in?
- ZIP code 91021 is in Los Angeles County, California.
- What time zone is ZIP code 91021 in?
- 91021 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 91021?
- Phone numbers in ZIP code 91021 use area code 818.
- Can I use 91021 for a street address?
- No. 91021 is only for PO Boxes. Street addresses in Montrose use 91020.
- What ZIP codes are near 91021?
- The nearest ZIP codes to 91021 are 91020 (Montrose, 0.5 miles), 91046 (Verdugo City, 0.9 miles), 91208 (Glendale, 1.2 miles) and 91011 (La Canada Flintridge, 1.5 miles).