ZIP code 16603
Where is ZIP code 16603?
Altoona, Pennsylvania
Blair County · PO Box only ZIP code
ZIP code 16603 belongs to Altoona, Pennsylvania in Blair County. 16603 is a PO Box only ZIP code: it is used for post office boxes at the Altoona post office, not for street addresses. It is in the Eastern Time zone and uses area code 814. The closest ZIP codes are 16602 (Altoona, 1.1 mi east), 16601 (Altoona, 1.3 mi north) and 16648 (Hollidaysburg, 4.9 mi southeast).
| ZIP code | 16603 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Altoona |
| State | Pennsylvania (PA) |
| County | Blair County |
| Time zone | Eastern Time · now |
| Area code | 814 |
| Coordinates | 40.5018, -78.41 map |
| 3-digit prefix | 166 |
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 16603
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 16602 | Altoona, PA | 1.1 mi E | Standard |
| 16601 | Altoona, PA | 1.3 mi N | Standard |
| 16648 | Hollidaysburg, PA | 4.9 mi SE | Standard |
| 16635 | Duncansville, PA | 5.4 mi S | Standard |
| 16629 | Coupon, PA | 6.3 mi W | Standard |
| 16613 | Ashville, PA | 7.4 mi NW | Standard |
| 16641 | Gallitzin, PA | 7.6 mi W | Standard |
| 16665 | Newry, PA | 7.6 mi S | PO Box only |
| 16617 | Bellwood, PA | 8 mi NE | Standard |
| 16636 | Dysart, PA | 9.6 mi NW | Standard |
| 16630 | Cresson, PA | 9.7 mi W | Standard |
| 16693 | Williamsburg, PA | 10.6 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 16603 or measure the distance to another ZIP code.
How to address mail to 16603
PO BOX 123
ALTOONA PA 16603
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (16603-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Altoona, PA
All Altoona ZIP codes with population and income →
Questions
- What city is ZIP code 16603?
- 16603 is a Altoona, Pennsylvania ZIP code.
- What county is 16603 in?
- ZIP code 16603 is in Blair County, Pennsylvania.
- What time zone is ZIP code 16603 in?
- 16603 is in the Eastern Time zone (America/New_York).
- What area code is 16603?
- Phone numbers in ZIP code 16603 use area code 814.
- Can I use 16603 for a street address?
- No. 16603 is only for PO Boxes. Street addresses in Altoona use 16601, 16602.
- What ZIP codes are near 16603?
- The nearest ZIP codes to 16603 are 16602 (Altoona, 1.1 miles), 16601 (Altoona, 1.3 miles), 16648 (Hollidaysburg, 4.9 miles) and 16635 (Duncansville, 5.4 miles).