ZIP code 93423
Where is ZIP code 93423?
Atascadero, California
San Luis Obispo County · PO Box only ZIP code
ZIP code 93423 belongs to Atascadero, California in San Luis Obispo County. 93423 is a PO Box only ZIP code: it is used for post office boxes at the Atascadero post office, not for street addresses. It is in the Pacific Time zone and uses area code 805. The closest ZIP codes are 93442 (Morro Bay, 5.4 mi southwest), 93443 (Morro Bay, 6.3 mi southwest) and 93422 (Atascadero, 6.8 mi northeast).
| ZIP code | 93423 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Atascadero |
| State | California (CA) |
| County | San Luis Obispo County |
| Time zone | Pacific Time · now |
| Area code | 805 |
| Coordinates | 35.4282, -120.7695 map |
| 3-digit prefix | 934 |
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 93423
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 93442 | Morro Bay, CA | 5.4 mi SW | Standard |
| 93443 | Morro Bay, CA | 6.3 mi SW | PO Box only |
| 93422 | Atascadero, CA | 6.8 mi NE | Standard |
| 93430 | Cayucos, CA | 6.9 mi W | Standard |
| 93402 | Los Osos, CA | 8.5 mi SW | Standard |
| 93412 | Los Osos, CA | 8.8 mi SW | PO Box only |
| 93465 | Templeton, CA | 9.4 mi N | Standard |
| 93405 | San Luis Obispo, CA | 10.7 mi SE | Standard |
| 93403 | San Luis Obispo, CA | 11.8 mi SE | PO Box only |
| 93406 | San Luis Obispo, CA | 11.8 mi SE | PO Box only |
| 93407 | San Luis Obispo, CA | 11.8 mi SE | Standard |
| 93408 | San Luis Obispo, CA | 11.8 mi SE | Unique |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 93423 or measure the distance to another ZIP code.
How to address mail to 93423
PO BOX 123
ATASCADERO CA 93423
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (93423-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Atascadero, CA
All Atascadero ZIP codes with population and income →
Questions
- What city is ZIP code 93423?
- 93423 is a Atascadero, California ZIP code.
- What county is 93423 in?
- ZIP code 93423 is in San Luis Obispo County, California.
- What time zone is ZIP code 93423 in?
- 93423 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 93423?
- Phone numbers in ZIP code 93423 use area code 805.
- Can I use 93423 for a street address?
- No. 93423 is only for PO Boxes. Street addresses in Atascadero use 93422.
- What ZIP codes are near 93423?
- The nearest ZIP codes to 93423 are 93442 (Morro Bay, 5.4 miles), 93443 (Morro Bay, 6.3 miles), 93422 (Atascadero, 6.8 miles) and 93430 (Cayucos, 6.9 miles).