08858
ZIP 08858 is Oldwick, New Jersey, in Hunterdon County; area code 908; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Hunterdon
- Metro area
- New York-Newark-Jersey City, NY-NJ
- Population
- 20
- Coordinates
- 40.6827, -74.7370
Weather right now
Asking the National Weather Service…
Where 08858 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 08858 into a pocket calculator and turn it upside down: BSBBO — not quite a word, sorry.
- ➕ As a number, 8,858 = 2 × 43 × 103. Its digits add up to 29, a total 1,296 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10001010011010 - 🏠 Its numerical neighbours: 08857 (Old Bridge, NJ, 29 mi away) and 08859 (Parlin, NJ, 28 mi away).
- 🔄 Backwards, 08858 becomes 85880, which is not a ZIP code at all.
- 👥 3 other ZIP codes are made of exactly the same digits (08885, 88058, 88580). The farthest-flung twin is 88058 in San Miguel, NM, 1,862 miles away.
- 🧭 Farther north than 63% of all ZIP codes, and farther east than 88%.
- 🎯1,255 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 08858 and you would come out at 40.68°S, 105.26°E — 843 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 15m.
- 📏 At 2.6 square miles of land, 08858 is bigger than 13% of ZIP codes — room for about 2.0 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 20This ZIP20 |
|---|---|
| Households | 20This ZIP20 |
| Housing units | 20This ZIP20 |
| Bachelor's degree or higher | 100.0%This ZIP100.0% |
| Population density | 7.6 / sq miThis ZIP7.6 / sq mi |
Business and tax activity
| Business establishments | 39This ZIP39 |
|---|---|
| Employees | 891This ZIP891 |
| Annual payroll | $99,319,000This ZIP$99,319,000 |
Land area
| Land area | 2.63 sq miThis ZIP2.63 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Other place names in 08858
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 08858
| ZIP | City | Distance |
|---|---|---|
07979 | Pottersville, NJ | 2.0 mi |
07921 | Bedminster, NJ | 3.6 mi |
07830 | Califon, NJ | 3.9 mi |
08888 | Whitehouse, NJ | 4.4 mi |
08833 | Lebanon, NJ | 4.9 mi |
07977 | Peapack, NJ | 4.9 mi |
07934 | Gladstone, NJ | 4.9 mi |
08889 | Whitehouse Station, NJ | 5.2 mi |
07978 | Pluckemin, NJ | 5.8 mi |
07931 | Far Hills, NJ | 6.3 mi |
Find every ZIP code within 10 miles of 08858 →
Questions about this ZIP code
Where is ZIP code 08858?
08858 is in Oldwick, New Jersey, in Hunterdon County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.6827, -74.7370.
What county is 08858 in?
08858 lies in Hunterdon County.
What area code is 08858?
Oldwick uses area code 908, from NANPA's telephone records.
What time zone is 08858 in?
08858 uses America/New_York.
How many people live in 08858?
About 20 people live in ZIP code 08858, in 20 households, at 7.6 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 08858?
The closest are 07979 (2 mi), 07921 (3.6 mi), 07830 (3.9 mi), 08888 (4.4 mi) and 08833 (4.9 mi).
Is 08858 a PO Box ZIP code?
08858 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “08858 ZIP Code — Oldwick, New Jersey (Hunterdon County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/08858
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/08858.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.