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/17705

17705

ZIP 17705 is in Williamsport, Pennsylvania, in Lycoming County; area codes 570 and 272; Eastern time. Williamsport has 4 ZIP codes; the others are 17701, 17702 and 17703.

Type
No street area
Time zone
America/New_York
County
Lycoming
Metro area
Williamsport, PA
Coordinates
41.3327, -77.0236

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 17728, whose figures describe that area — not this ZIP code.

☼ Live from 17705 — Williamsport, PA

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Where 17705 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 17705
  • 🔢 Type 17705 into a pocket calculator and turn it upside down: SOLLI — not quite a word, sorry.
  • ➕ As a number, 17,705 = 5 × 3541. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100010100101001
  • 🏠 Its numerical neighbours: 17703 (Williamsport, PA, 6 mi away) and 17720 (Antes Fort, PA, 14 mi away).
  • 🔄 Backwards, 17705 becomes 50771, which is not a ZIP code at all.
  • 👥 32 other ZIP codes are made of exactly the same digits (01757, 01775, 07175, 07715, 07751, 10577, …). The farthest-flung twin is 57701 in Rapid City, SD, 1,337 miles away.
  • 🧭 Farther north than 70% of all ZIP codes, and farther east than 81%.
  • 🎯1,133 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 17705 and you would come out at 41.33°S, 102.98°E — 963 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 10m of daylight. Shortest: 9h 11m.
🌙 The sky over 17705 today
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🌋 Shake report
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Source: USGS.

Land area

ZIP codes near 17705

ZIPCityDistance
17728 Cogan Station, PA 2.9 mi
17703 Williamsport, PA 6.4 mi
17754 Montoursville, PA 7.1 mi
17771 Trout Run, PA 7.3 mi
17701 Williamsport, PA 8.7 mi
17744 Linden, PA 9.2 mi
17702 Williamsport, PA 10.7 mi
17752 Montgomery, PA 11.7 mi
17763 Ralston, PA 13.1 mi
17740 Jersey Shore, PA 13.8 mi

Find every ZIP code within 10 miles of 17705 →

Questions about this ZIP code

Where is ZIP code 17705?

17705 is in Williamsport, Pennsylvania, in Lycoming County, part of the Williamsport, PA metropolitan area. Its published point location is 41.3327, -77.0236.

What county is 17705 in?

17705 lies in Lycoming County.

What area code is 17705?

Williamsport uses area codes 570 and 272, from NANPA's telephone records.

What time zone is 17705 in?

17705 uses America/New_York.

What ZIP codes are near 17705?

The closest are 17728 (2.9 mi), 17703 (6.4 mi), 17754 (7.1 mi), 17771 (7.3 mi) and 17701 (8.7 mi).

Is 17705 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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Cite this page

zipcodes.pro. “17705 ZIP Code — Williamsport, Pennsylvania (Lycoming County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/17705

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curl https://zipcodes.pro/zip/17705.json

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