ZIP code 18603
Where is ZIP code 18603?
Berwick, Pennsylvania
Columbia County · Standard ZIP code
ZIP code 18603 belongs to Berwick, Pennsylvania in Columbia County. 18603 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 272 and 570. About 18,827 people live in the 18603 area, where the median household income is $60,352. The closest ZIP codes are 18635 (Nescopeck, 2.8 mi southeast), 18601 (Beach Haven, 3.6 mi east) and 18631 (Mifflinville, 4.1 mi southwest).
| ZIP code | 18603 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Berwick |
| State | Pennsylvania (PA) |
| County | Columbia County |
| Time zone | Eastern Time · now |
| Area codes | 272, 570 |
| Coordinates | 41.0665, -76.2443 map |
| 3-digit prefix | 186 |
Population and income in 18603
| Population | 18,827 · higher than 88% of Pennsylvania ZIP codes |
|---|---|
| People per square mile | 353 · higher than 56% of Pennsylvania ZIP codes |
| Median age | 45.3 years · higher than 56% of Pennsylvania ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $60,352 · lower than 74% of Pennsylvania ZIP codes |
| Income per person | $33,105 |
| Below the poverty line | 13% |
| Bachelor’s degree or higher | 22% of adults 25+ |
| Median home value | $170,500 · lower than 61% of Pennsylvania ZIP codes |
| Median rent | $810 a month |
| Housing units | 9,104 |
| Households | 8,283 (2.25 people on average) |
| Owners / renters | 72% / 28% |
| Land area | 53.4 sq mi (plus 1.59 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 18603. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 18603
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 18635 | Nescopeck, PA | 2.8 mi SE | Standard |
| 18601 | Beach Haven, PA | 3.6 mi E | PO Box only |
| 18631 | Mifflinville, PA | 4.1 mi SW | PO Box only |
| 17859 | Orangeville, PA | 7.5 mi W | Standard |
| 18246 | Rock Glen, PA | 7.7 mi SE | PO Box only |
| 18660 | Wapwallopen, PA | 8.3 mi E | Standard |
| 18622 | Huntington Mills, PA | 8.6 mi N | Standard |
| 17878 | Stillwater, PA | 8.8 mi NW | Standard |
| 18655 | Shickshinny, PA | 9.2 mi NE | Standard |
| 18249 | Sugarloaf, PA | 9.4 mi SE | Standard |
| 18241 | Nuremberg, PA | 9.6 mi SE | Standard |
| 18611 | Cambra, PA | 9.6 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 18603 or measure the distance to another ZIP code.
How to address mail to 18603
123 MAIN ST
BERWICK PA 18603
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (18603-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 18603?
- 18603 is a Berwick, Pennsylvania ZIP code.
- What county is 18603 in?
- ZIP code 18603 is in Columbia County, Pennsylvania.
- What time zone is ZIP code 18603 in?
- 18603 is in the Eastern Time zone (America/New_York).
- What area code is 18603?
- Phone numbers in ZIP code 18603 use area codes 272 and 570.
- What is the population of ZIP code 18603?
- About 18,827 people live in ZIP code 18603, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 18603?
- The median household income in 18603 is $60,352 a year, lower than 74% of Pennsylvania ZIP codes.
- What ZIP codes are near 18603?
- The nearest ZIP codes to 18603 are 18635 (Nescopeck, 2.8 miles), 18601 (Beach Haven, 3.6 miles), 18631 (Mifflinville, 4.1 miles) and 17859 (Orangeville, 7.5 miles).