ZIP code 18351
Where is ZIP code 18351?
Portland, Pennsylvania
Northampton County · PO Box only ZIP code
ZIP code 18351 belongs to Portland, Pennsylvania in Northampton County. 18351 is a PO Box only ZIP code: it is used for post office boxes at the Portland post office, not for street addresses. It is in the Eastern Time zone and uses area codes 272, 484, 570, 610, 835 and 908. About 546 people live in the 18351 area, where the median household income is $52,679. The closest ZIP codes are 18343 (Mount Bethel, 1.6 mi southwest), 07832 (Columbia, 2.5 mi northeast) and 07833 (Delaware, 2.6 mi southeast).
| ZIP code | 18351 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Portland |
| State | Pennsylvania (PA) |
| County | Northampton County |
| Time zone | Eastern Time · now |
| Area codes | 272, 484, 570, 610, 835, 908 |
| Coordinates | 40.9214, -75.097 map |
| 3-digit prefix | 183 |
Population and income in 18351
| Population | 546 · lower than 72% of Pennsylvania ZIP codes |
|---|---|
| People per square mile | 1,650 · higher than 81% of Pennsylvania ZIP codes |
| Median age | 46.4 years · higher than 62% of Pennsylvania ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $52,679 · lower than 88% of Pennsylvania ZIP codes |
| Income per person | $30,981 |
| Below the poverty line | 20% |
| Bachelor’s degree or higher | 19% of adults 25+ |
| Median home value | $266,900 · higher than 75% of Pennsylvania ZIP codes |
| Median rent | $1,217 a month |
| Housing units | 289 |
| Households | 235 (2.32 people on average) |
| Owners / renters | 54% / 46% |
| Land area | 0.33 sq mi (plus 0.05 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 18351. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 18351
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 18343 | Mount Bethel, PA | 1.6 mi SW | Standard |
| 07832 | Columbia, NJ | 2.5 mi NE | Standard |
| 07833 | Delaware, NJ | 2.6 mi SE | PO Box only |
| 18327 | Delaware Water Gap, PA | 4.7 mi NW | PO Box only |
| 18341 | Minisink Hills, PA | 5.8 mi N | PO Box only |
| 07844 | Hope, NJ | 5.9 mi E | PO Box only |
| 18013 | Bangor, PA | 6.1 mi SW | Standard |
| 18356 | Shawnee On Delaware, PA | 6.3 mi N | PO Box only |
| 07823 | Belvidere, NJ | 6.7 mi S | Standard |
| 07825 | Blairstown, NJ | 7.6 mi NE | Standard |
| 07829 | Buttzville, NJ | 7.9 mi SE | PO Box only |
| 18301 | East Stroudsburg, PA | 8.9 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 18351 or measure the distance to another ZIP code.
How to address mail to 18351
PO BOX 123
PORTLAND PA 18351
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (18351-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 18351?
- 18351 is a Portland, Pennsylvania ZIP code.
- What county is 18351 in?
- ZIP code 18351 is in Northampton County, Pennsylvania.
- What time zone is ZIP code 18351 in?
- 18351 is in the Eastern Time zone (America/New_York).
- What area code is 18351?
- Phone numbers in ZIP code 18351 use area codes 272, 484, 570, 610, 835 and 908.
- What is the population of ZIP code 18351?
- About 546 people live in ZIP code 18351, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 18351?
- The median household income in 18351 is $52,679 a year, lower than 88% of Pennsylvania ZIP codes.
- Can I use 18351 for a street address?
- No. 18351 is only for PO Boxes. Street addresses in Portland use another ZIP code.
- What ZIP codes are near 18351?
- The nearest ZIP codes to 18351 are 18343 (Mount Bethel, 1.6 miles), 07832 (Columbia, 2.5 miles), 07833 (Delaware, 2.6 miles) and 18327 (Delaware Water Gap, 4.7 miles).