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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/25404

25404

ZIP 25404 is in Martinsburg, West Virginia, in Berkeley County; area codes 304 and 681; Eastern time. Martinsburg has 5 ZIP codes; the others are 25401, 25402, 25403 and 25405.

Type
Standard
Time zone
America/New_York
County
Berkeley
Population
23,990
Coordinates
39.4899, -77.8964
☼ Live from 25404 — Martinsburg, WV

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Where 25404 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 25404
  • 🔢 Type 25404 into a pocket calculator and turn it upside down: hOhSZ — not quite a word, sorry.
  • ➕ As a number, 25,404 = 2 × 2 × 3 × 29 × 73. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 110001100111100
  • 🏠 Its numerical neighbours: 25403 (Martinsburg, WV, 6 mi away) and 25405 (Martinsburg, WV, 7 mi away).
  • 🔄 Backwards, 25404 becomes 40452 — and that is a real ZIP code: Mitchellsburg, KY, 403 miles away.
  • 👥 34 other ZIP codes are made of exactly the same digits (02445, 02454, 04254, 05442, 20544, 24054, …). The farthest-flung twin is 50424 in Buffalo Center, IA, 872 miles away.
  • 🧭 Farther north than 52% of all ZIP codes, and farther east than 79%.
  • 🎯1,098 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 25404 and you would come out at 39.49°S, 102.10°E — 929 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 23m.
  • 📏 At 37.9 square miles of land, 25404 is bigger than 52% of ZIP codes — room for about 29 Central Parks.
🌙 The sky over 25404 today
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🌋 Shake report
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Source: USGS.

People and housing

Population23,990This ZIP23,990
Households9,900This ZIP9,900
Housing units10,352This ZIP10,352
Median age36.7This ZIP36.7West Virginia42.7US 38.9
Median household income$70,633This ZIP$70,633West Virginia$59,608US $80,734
Median home value$246,200This ZIP$246,200West Virginia$162,600US $332,700
Median gross rent$1,292This ZIP$1,292West Virginia$872US $1,413
Bachelor's degree or higher23.1%This ZIP23.1%
Mean commute31.4 minThis ZIP31.4 min
Population density632.7 / sq miThis ZIP632.7 / sq mi

Business and tax activity

Business establishments346This ZIP346
Employees4,004This ZIP4,004
Annual payroll$146,038,000This ZIP$146,038,000
Tax returns filed11,390This ZIP11,390
Total adjusted gross income$666,882,000This ZIP$666,882,000

Land area

Land area37.92 sq miThis ZIP37.92 sq mi
Water area0.06 sq miThis ZIP0.06 sq mi

Other place names in 25404

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

ZIP codes near 25404

ZIPCityDistance
25402 Martinsburg, WV 4.3 mi
25401 Martinsburg, WV 4.6 mi
25443 Shepherdstown, WV 5.6 mi
25403 Martinsburg, WV 6.2 mi
25419 Falling Waters, WV 6.5 mi
25405 Martinsburg, WV 6.6 mi
21795 Williamsport, MD 7.4 mi
21782 Sharpsburg, MD 7.6 mi
21733 Fairplay, MD 8.4 mi
25442 Shenandoah Junction, WV 8.8 mi

Find every ZIP code within 10 miles of 25404 →

Questions about this ZIP code

Where is ZIP code 25404?

25404 is in Martinsburg, West Virginia, in Berkeley County, part of the Hagerstown-Martinsburg, MD-WV metropolitan area. Its published point location is 39.4899, -77.8964.

What county is 25404 in?

25404 lies in Berkeley County.

What area code is 25404?

Martinsburg uses area codes 304 and 681, from NANPA's telephone records.

What time zone is 25404 in?

25404 uses America/New_York.

How many people live in 25404?

About 23,990 people live in ZIP code 25404, in 9,900 households, at 632.7 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 25404?

$70,633 a year, against $59,608 across West Virginia.

What ZIP codes are near 25404?

The closest are 25402 (4.3 mi), 25401 (4.6 mi), 25443 (5.6 mi), 25403 (6.2 mi) and 25419 (6.5 mi).

Is 25404 a PO Box ZIP code?

25404 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “25404 ZIP Code — Martinsburg, West Virginia (Berkeley County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/25404

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