ZIP code 08858
Where is ZIP code 08858?
Oldwick, New Jersey
Hunterdon County · PO Box only ZIP code
ZIP code 08858 belongs to Oldwick, New Jersey in Hunterdon County. 08858 is a PO Box only ZIP code: it is used for post office boxes at the Oldwick post office, not for street addresses. It is in the Eastern Time zone and uses area code 908. About 20 people live in the 08858 area. The closest ZIP codes are 07979 (Pottersville, 2.3 mi northeast), 08888 (Whitehouse, 3.7 mi south) and 08889 (Whitehouse Station, 4.2 mi south).
| ZIP code | 08858 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Oldwick |
| State | New Jersey (NJ) |
| County | Hunterdon County |
| Time zone | Eastern Time · now |
| Area code | 908 |
| Coordinates | 40.6726, -74.7474 map |
| 3-digit prefix | 088 |
Population and income in 08858
| Population | 20 · lower than 99% of New Jersey ZIP codes |
|---|---|
| People per square mile | 8 · lower than 99% of New Jersey ZIP codes |
| Men / women | 0.0% / 100% |
| Income per person | $0 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 100% of adults 25+ |
| Housing units | 20 |
| Households | 20 |
| Owners / renters | 100% / 0.0% |
| Land area | 2.63 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 08858. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 08858
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 07979 | Pottersville, NJ | 2.3 mi NE | PO Box only |
| 08888 | Whitehouse, NJ | 3.7 mi S | PO Box only |
| 08889 | Whitehouse Station, NJ | 4.2 mi S | Standard |
| 08833 | Lebanon, NJ | 4.6 mi SW | Standard |
| 07830 | Califon, NJ | 4.7 mi NW | Standard |
| 07931 | Far Hills, NJ | 5.3 mi E | Standard |
| 07934 | Gladstone, NJ | 5.3 mi NE | Standard |
| 07977 | Peapack, NJ | 5.5 mi NE | PO Box only |
| 07921 | Bedminster, NJ | 5.6 mi E | Standard |
| 07978 | Pluckemin, NJ | 6 mi E | PO Box only |
| 08876 | Somerville, NJ | 6.6 mi SE | Standard |
| 08870 | Readington, NJ | 7.2 mi S | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 08858 or measure the distance to another ZIP code.
How to address mail to 08858
PO BOX 123
OLDWICK NJ 08858
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (08858-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 08858?
- 08858 is a Oldwick, New Jersey ZIP code.
- What county is 08858 in?
- ZIP code 08858 is in Hunterdon County, New Jersey.
- What time zone is ZIP code 08858 in?
- 08858 is in the Eastern Time zone (America/New_York).
- What area code is 08858?
- Phone numbers in ZIP code 08858 use area code 908.
- What is the population of ZIP code 08858?
- About 20 people live in ZIP code 08858, according to the Census Bureau’s American Community Survey (2020–2024).
- Can I use 08858 for a street address?
- No. 08858 is only for PO Boxes. Street addresses in Oldwick use another ZIP code.
- What ZIP codes are near 08858?
- The nearest ZIP codes to 08858 are 07979 (Pottersville, 2.3 miles), 08888 (Whitehouse, 3.7 miles), 08889 (Whitehouse Station, 4.2 miles) and 08833 (Lebanon, 4.6 miles).