Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/23705

23705

ZIP 23705 is in Portsmouth, Virginia, in Portsmouth City; area codes 757 and 948; Eastern time. Portsmouth has 8 ZIP codes in all.

Type
No street area
Time zone
America/New_York
Coordinates
36.8686, -76.3552

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 23703, whose figures describe that area — not this ZIP code.

☼ Live from 23705 — Portsmouth, VA

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Where 23705 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 23705
  • 🔢 Type 23705 into a pocket calculator and turn it upside down: SOLEZ — not quite a word, sorry.
  • ➕ As a number, 23,705 = 5 × 11 × 431. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101110010011001
  • 🏠 Its numerical neighbours: 23704 (Portsmouth, VA, 4 mi away) and 23707 (Portsmouth, VA, 2 mi away).
  • 🔄 Backwards, 23705 becomes 50732, which is not a ZIP code at all.
  • 👥 65 other ZIP codes are made of exactly the same digits (02357, 02375, 02537, 03257, 03275, 03752, …). The farthest-flung twin is 73502 in Lawton, OK, 1,243 miles away.
  • 🧭 Farther south than 65% of all ZIP codes, and farther east than 84%.
  • 🎯1,218 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 23705 and you would come out at 36.87°S, 103.64°E — 774 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
🌙 The sky over 23705 today
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Source: USGS.

Land area

ZIP codes near 23705

ZIPCityDistance
23703 Portsmouth, VA 2.0 mi
23707 Portsmouth, VA 2.0 mi
23508 Norfolk, VA 2.7 mi
23507 Norfolk, VA 2.9 mi
23708 Portsmouth, VA 3.2 mi
23517 Norfolk, VA 3.5 mi
23510 Norfolk, VA 3.7 mi
23704 Portsmouth, VA 3.8 mi
23701 Portsmouth, VA 4.0 mi
23514 Norfolk, VA 4.2 mi

Find every ZIP code within 10 miles of 23705 →

Questions about this ZIP code

Where is ZIP code 23705?

23705 is in Portsmouth, Virginia, in Portsmouth city, part of the Virginia Beach-Chesapeake-Norfolk, VA-NC metropolitan area. Its published point location is 36.8686, -76.3552.

What county is 23705 in?

23705 lies in Portsmouth city.

What area code is 23705?

Portsmouth uses area codes 757 and 948, from NANPA's telephone records.

What time zone is 23705 in?

23705 uses America/New_York.

What ZIP codes are near 23705?

The closest are 23703 (2 mi), 23707 (2 mi), 23508 (2.7 mi), 23507 (2.9 mi) and 23708 (3.2 mi).

Is 23705 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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zipcodes.pro. “23705 ZIP Code — Portsmouth, Virginia (Portsmouth City).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/23705

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