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zipcodes.pro — ZIP/08558

08558

ZIP 08558 is Skillman, New Jersey, mostly in Somerset County; Eastern time.

Type
Standard
Time zone
America/New_York
County
Somerset +1 more
Population
7,648
Coordinates
40.4134, -74.7037
☼ Live from 08558 — Skillman, NJ

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Local time: —

Where 08558 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.

★ Weird and wonderful facts about 08558
  • 🔢 Type 08558 into a pocket calculator and turn it upside down: BSSBO — not quite a word, sorry.
  • ➕ As a number, 8,558 = 2 × 11 × 389. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000101101110
  • 🏠 Its numerical neighbours: 08557 (Sergeantsville, NJ, 13 mi away) and 08559 (Stockton, NJ, 15 mi away).
  • 🔄 Backwards, 08558 becomes 85580, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (05858, 08855, 50588, 50858, 55088, 55808, …). The farthest-flung twin is 85085 in Phoenix, AZ, 2,095 miles away.
  • 🧭 Farther north than 60% of all ZIP codes, and farther east than 88%.
  • 🎯1,258 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 08558 and you would come out at 40.41°S, 105.30°E — 829 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 04m of daylight. Shortest: 9h 17m.
  • 📏 At 15.6 square miles of land, 08558 is bigger than 33% of ZIP codes — room for about 12 Central Parks.
🌙 The sky over 08558 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population7,648This ZIP7,648
Households2,767This ZIP2,767
Housing units2,789This ZIP2,789
Median age47.5This ZIP47.5New Jersey40.1US 38.9
Median household income$236,016This ZIP$236,016New Jersey$103,556US $80,734
Median home value$910,200This ZIP$910,200New Jersey$454,400US $332,700
Median gross rent$2,000This ZIP$2,000New Jersey$1,720US $1,413
Bachelor's degree or higher79.3%This ZIP79.3%
Mean commute40.3 minThis ZIP40.3 min
Population density490.6 / sq miThis ZIP490.6 / sq mi

Business and tax activity

Business establishments258This ZIP258
Employees2,965This ZIP2,965
Annual payroll$262,582,000This ZIP$262,582,000
Tax returns filed3,720This ZIP3,720
Total adjusted gross income$1,119,051,000This ZIP$1,119,051,000

Land area

Land area15.59 sq miThis ZIP15.59 sq mi
Water area0.07 sq miThis ZIP0.07 sq mi

Counties 08558 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Somerset County 95.5%
Mercer County 4.5%

Other place names in 08558

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 08558

ZIPCityDistance
08504 Blawenburg, NJ 0.4 mi
08553 Rocky Hill, NJ 3.5 mi
08502 Belle Mead, NJ 3.6 mi
08525 Hopewell, NJ 4.1 mi
08540 Princeton, NJ 4.2 mi
08542 Princeton, NJ 4.7 mi
08528 Kingston, NJ 4.8 mi
08541 Princeton, NJ 5.1 mi
08544 Princeton, NJ 5.2 mi
08844 Hillsborough, NJ 6.1 mi

Find every ZIP code within 10 miles of 08558 →

Questions about this ZIP code

Where is ZIP code 08558?

08558 is in Skillman, New Jersey, in Somerset County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.4134, -74.7037.

What county is 08558 in?

08558 spans 2 counties: Somerset County and Mercer County. Most of it falls in Somerset County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What time zone is 08558 in?

08558 uses America/New_York.

How many people live in 08558?

About 7,648 people live in ZIP code 08558, in 2,767 households, at 490.6 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 08558?

$236,016 a year, against $103,556 across New Jersey.

What ZIP codes are near 08558?

The closest are 08504 (0.4 mi), 08553 (3.5 mi), 08502 (3.6 mi), 08525 (4.1 mi) and 08540 (4.2 mi).

Is 08558 a PO Box ZIP code?

08558 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “08558 ZIP Code — Skillman, New Jersey (Somerset County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/08558

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/08558.json

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