What to know about ZIP 08858
ZIP code 08858 covers Oldwick, NJ in Hunterdon County.
It sits in telephone area code 908; U.S. House district NJ-7; the NEW YORK media market.
- Home
- States
- New Jersey
- ZIP 08858
Oldwick CDP, NJ
ZIP Code 08858 — Oldwick CDP, NJ Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Low Snow Area
Map, Quick Facts & Location
Quick Facts
Local time
—
Population
N/A
Median Income
N/A
Home Value
N/A
Median Rent
N/A
Median Age
N/A
City
County
Timezone
Area Code
Congress
Scroll to load map
At a glance
Overview of ZIP Code 08858
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for Oldwick CDP, NJ as Relatively Low (composite score 78.7), which is elevated versus much of the country. The strongest component scores on US5 are flood (86.8) and hurricane (74.7). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.
Climate normals for Oldwick CDP, NJ show little to no average snow and around 45.5 inches of annual precipitation.
Nearby (from this ZIP)
Airport MMU (18.7 miles (30.1 km)) · Raritan Valley Community College (5.7 miles (9.1 km)) · Morristown National Historical Park (12.0 miles (19.4 km)) · VA: Lyons Campus of the VA New Jersey Health Care System (9.9 miles (16.0 km))
Full lists and map pins are in the Infrastructure section below.