ZIP code 18820
Where is ZIP code 18820?
Gibson, Pennsylvania
Susquehanna County · PO Box only ZIP code
ZIP code 18820 belongs to Gibson, Pennsylvania in Susquehanna County. 18820 is a PO Box only ZIP code: it is used for post office boxes at the Gibson post office, not for street addresses. It is in the Eastern Time zone and uses area codes 272 and 570. About 36 people live in the 18820 area. The closest ZIP codes are 18823 (Harford, 3.2 mi southwest), 18842 (South Gibson, 4.8 mi south) and 18834 (New Milford, 5.8 mi northwest).
| ZIP code | 18820 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Gibson |
| State | Pennsylvania (PA) |
| County | Susquehanna County |
| Time zone | Eastern Time · now |
| Area codes | 272, 570 |
| Coordinates | 41.8034, -75.6441 map |
| 3-digit prefix | 188 |
Population and income in 18820
| Population | 36 · lower than 98% of Pennsylvania ZIP codes |
|---|---|
| People per square mile | 21 · lower than 94% of Pennsylvania ZIP codes |
| Median age | 42.1 years · lower than 62% of Pennsylvania ZIP codes |
| Men / women | 33% / 67% |
| Income per person | $50,947 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 34% of adults 25+ |
| Housing units | 29 |
| Households | 21 (1.71 people on average) |
| Owners / renters | 100% / 0.0% |
| Land area | 1.75 sq mi (plus 0.03 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 18820. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 18820
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 18823 | Harford, PA | 3.2 mi SW | Standard |
| 18842 | South Gibson, PA | 4.8 mi S | Standard |
| 18834 | New Milford, PA | 5.8 mi NW | Standard |
| 18465 | Thompson, PA | 6 mi E | Standard |
| 18826 | Kingsley, PA | 7.6 mi W | Standard |
| 18470 | Union Dale, PA | 8.3 mi SE | Standard |
| 18825 | Jackson, PA | 8.3 mi W | Standard |
| 18430 | Herrick Center, PA | 9 mi SE | Standard |
| 18813 | Brooklyn, PA | 9.1 mi SW | PO Box only |
| 18441 | Lenoxville, PA | 10 mi S | Standard |
| 18449 | Orson, PA | 10.1 mi E | PO Box only |
| 18847 | Susquehanna, PA | 10.5 mi N | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 18820 or measure the distance to another ZIP code.
How to address mail to 18820
PO BOX 123
GIBSON PA 18820
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (18820-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 18820?
- 18820 is a Gibson, Pennsylvania ZIP code.
- What county is 18820 in?
- ZIP code 18820 is in Susquehanna County, Pennsylvania.
- What time zone is ZIP code 18820 in?
- 18820 is in the Eastern Time zone (America/New_York).
- What area code is 18820?
- Phone numbers in ZIP code 18820 use area codes 272 and 570.
- What is the population of ZIP code 18820?
- About 36 people live in ZIP code 18820, according to the Census Bureau’s American Community Survey (2020–2024).
- Can I use 18820 for a street address?
- No. 18820 is only for PO Boxes. Street addresses in Gibson use another ZIP code.
- What ZIP codes are near 18820?
- The nearest ZIP codes to 18820 are 18823 (Harford, 3.2 miles), 18842 (South Gibson, 4.8 miles), 18834 (New Milford, 5.8 miles) and 18465 (Thompson, 6 miles).