ZIP code 91743
Where is ZIP code 91743?
Guasti, California
San Bernardino County · PO Box only ZIP code
ZIP code 91743 belongs to Guasti, California in San Bernardino County. 91743 is a PO Box only ZIP code: it is used for post office boxes at the Guasti post office, not for street addresses. It is in the Pacific Time zone and uses area code 909. The closest ZIP codes are 91764 (Ontario, 2.4 mi west), 91729 (Rancho Cucamonga, 2.9 mi north) and 91730 (Rancho Cucamonga, 2.9 mi north).
| ZIP code | 91743 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Guasti |
| State | California (CA) |
| County | San Bernardino County |
| Time zone | Pacific Time · now |
| Area code | 909 |
| Coordinates | 34.065, -117.5864 map |
| 3-digit prefix | 917 |
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 91743
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 91764 | Ontario, CA | 2.4 mi W | Standard |
| 91729 | Rancho Cucamonga, CA | 2.9 mi N | PO Box only |
| 91730 | Rancho Cucamonga, CA | 2.9 mi N | Standard |
| 91761 | Ontario, CA | 3 mi SW | Standard |
| 91758 | Ontario, CA | 3.7 mi W | Standard |
| 91762 | Ontario, CA | 4.6 mi W | Standard |
| 91701 | Rancho Cucamonga, CA | 5.1 mi N | Standard |
| 91785 | Upland, CA | 5.3 mi NW | PO Box only |
| 91786 | Upland, CA | 5.3 mi NW | Standard |
| 91737 | Rancho Cucamonga, CA | 5.7 mi N | Standard |
| 91752 | Mira Loma, CA | 6.1 mi SE | Standard |
| 91763 | Montclair, CA | 6.5 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 91743 or measure the distance to another ZIP code.
How to address mail to 91743
PO BOX 123
GUASTI CA 91743
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (91743-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 91743?
- 91743 is a Guasti, California ZIP code.
- What county is 91743 in?
- ZIP code 91743 is in San Bernardino County, California.
- What time zone is ZIP code 91743 in?
- 91743 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 91743?
- Phone numbers in ZIP code 91743 use area code 909.
- Can I use 91743 for a street address?
- No. 91743 is only for PO Boxes. Street addresses in Guasti use another ZIP code.
- What ZIP codes are near 91743?
- The nearest ZIP codes to 91743 are 91764 (Ontario, 2.4 miles), 91729 (Rancho Cucamonga, 2.9 miles), 91730 (Rancho Cucamonga, 2.9 miles) and 91761 (Ontario, 3 miles).