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/83701

83701

ZIP 83701 is in Boise, Idaho, in Ada County; area codes 208 and 986; Mountain time. Boise has 28 ZIP codes in all.

Type
No street area
Time zone
America/Boise
County
Ada
Metro area
Boise City, ID
Coordinates
43.6038, -116.2729

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 83709, whose figures describe that area — not this ZIP code.

☼ Live from 83701 — Boise, ID

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Where 83701 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 83701
  • 🔢 Type 83701 into a pocket calculator and turn it upside down: IOLEB — not quite a word, sorry.
  • ➕ 83701 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100011011110101
  • 🏠 Its numerical neighbours: 83687 (Nampa, ID, 13 mi away) and 83702 (Boise, ID, 8 mi away).
  • 🔄 Backwards, 83701 becomes 10738, which is not a ZIP code at all.
  • 👥 52 other ZIP codes are made of exactly the same digits (01378, 03781, 03817, 03871, 07831, 08317, …). The farthest-flung twin is 03871 in Rye Beach, NH, 2,259 miles away.
  • 🧭 Farther north than 86% of all ZIP codes, and farther west than 89%.
  • 🎯947 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 83701 and you would come out at 43.60°S, 63.73°E — 503 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 26m of daylight. Shortest: 8h 56m.
🌙 The sky over 83701 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments50This ZIP50
Employees313This ZIP313
Annual payroll$22,750,000This ZIP$22,750,000

Land area

ZIP codes near 83701

ZIPCityDistance
83704 Boise, ID 1.8 mi
83725 Boise, ID 3.4 mi
83707 Boise, ID 3.5 mi
83728 Boise, ID 3.5 mi
83735 Boise, ID 3.5 mi
83799 Boise, ID 3.5 mi
83720 Boise, ID 3.8 mi
83709 Boise, ID 3.9 mi
83706 Boise, ID 4.0 mi
83724 Boise, ID 4.0 mi

Find every ZIP code within 10 miles of 83701 →

Questions about this ZIP code

Where is ZIP code 83701?

83701 is in Boise, Idaho, in Ada County, part of the Boise City, ID metropolitan area. Its published point location is 43.6038, -116.2729.

What county is 83701 in?

83701 lies in Ada County.

What area code is 83701?

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

What time zone is 83701 in?

83701 uses America/Boise.

What ZIP codes are near 83701?

The closest are 83704 (1.8 mi), 83725 (3.4 mi), 83707 (3.5 mi), 83728 (3.5 mi) and 83735 (3.5 mi).

Is 83701 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. “83701 ZIP Code — Boise, Idaho (Ada County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/83701

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curl https://zipcodes.pro/zip/83701.json

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