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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/83853

83853

ZIP 83853 is Porthill, Idaho, in Boundary County; area codes 208 and 986; Pacific time.

Type
No street area
Time zone
America/Los_Angeles
County
Boundary
Metro area
none
Coordinates
48.9920, -116.4775

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 83805, whose figures describe that area — not this ZIP code.

☼ Live from 83853 — Porthill, ID

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Where 83853 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 83853
  • 🔢 Type 83853 into a pocket calculator and turn it upside down: ESBEB — not quite a word, sorry.
  • ➕ As a number, 83,853 = 3 × 3 × 7 × 11 × 11 × 11. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100011110001101
  • 🏠 Its numerical neighbours: 83852 (Ponderay, ID, 47 mi away) and 83854 (Post Falls, ID, 90 mi away).
  • 🔄 Backwards, 83853 becomes 35838, which is not a ZIP code at all.
  • 👥 12 other ZIP codes are made of exactly the same digits (33858, 33885, 38358, 38583, 38835, 58338, …). The farthest-flung twin is 33885 in Winter Haven, FL, 2,345 miles away.
  • 🧭 Farther north than 98% of all ZIP codes, and farther west than 89%.
  • 🎯1,082 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 83853 and you would come out at 48.99°S, 63.52°E — 303 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 16h 12m of daylight. Shortest: 8h 13m.
🌙 The sky over 83853 today
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Source: USGS.

Land area

ZIP codes near 83853

ZIPCityDistance
83805 Bonners Ferry, ID 11.1 mi
83826 Eastport, ID 14.8 mi
83845 Moyie Springs, ID 24.4 mi
83848 Nordman, ID 27.2 mi
83847 Naples, ID 28.6 mi
99153 Metaline Falls, WA 31.7 mi
83821 Coolin, ID 36.5 mi
59935 Troy, MT 37.6 mi
83864 Sandpoint, ID 38.5 mi
99139 Ione, WA 40.0 mi

Find every ZIP code within 10 miles of 83853 →

Questions about this ZIP code

Where is ZIP code 83853?

83853 is in Porthill, Idaho, in Boundary County. Its published point location is 48.9920, -116.4775.

What county is 83853 in?

83853 lies in Boundary County.

What area code is 83853?

Porthill uses area codes 208 and 986, from NANPA's telephone records.

What time zone is 83853 in?

83853 uses America/Los_Angeles.

What ZIP codes are near 83853?

The closest are 83805 (11.1 mi), 83826 (14.8 mi), 83845 (24.4 mi), 83848 (27.2 mi) and 83847 (28.6 mi).

Is 83853 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. “83853 ZIP Code — Porthill, Idaho (Boundary County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/83853

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