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/46325

46325

ZIP 46325 is in Hammond, Indiana, in Lake County; area code 219; Central time. Hammond has 5 ZIP codes; the others are 46320, 46323, 46324 and 46327.

Type
No street area
Time zone
America/Chicago
County
Lake
Coordinates
41.4615, -87.3728

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 46410, whose figures describe that area — not this ZIP code.

☼ Live from 46325 — Hammond, IN

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Where 46325 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 46325
  • 🔢 Type 46325 into a pocket calculator and turn it upside down: SZEgh — not quite a word, sorry.
  • ➕ As a number, 46,325 = 5 × 5 × 17 × 109. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011010011110101
  • 🏠 Its numerical neighbours: 46324 (Hammond, IN, 11 mi away) and 46327 (Hammond, IN, 14 mi away).
  • 🔄 Backwards, 46325 becomes 52364, which is not a ZIP code at all.
  • 👥 51 other ZIP codes are made of exactly the same digits (23456, 23465, 24536, 24563, 24635, 25364, …). The farthest-flung twin is 34265 in Arcadia, FL, 1,036 miles away.
  • 🧭 Farther north than 70% of all ZIP codes, and farther east than 51%.
  • 🎯598 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 46325 and you would come out at 41.46°S, 92.63°E — 1,210 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 11m of daylight. Shortest: 9h 10m.
🌙 The sky over 46325 today
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Source: USGS.

Business and tax activity

Business establishments9This ZIP9
Employees83This ZIP83
Annual payroll$2,965,000This ZIP$2,965,000

Land area

ZIP codes near 46325

ZIPCityDistance
46411 Merrillville, IN 0.0 mi
46410 Merrillville, IN 2.4 mi
46308 Crown Point, IN 3.1 mi
46375 Schererville, IN 4.6 mi
46307 Crown Point, IN 4.8 mi
46319 Griffith, IN 4.9 mi
46373 Saint John, IN 5.1 mi
46408 Gary, IN 5.8 mi
46409 Gary, IN 6.5 mi
46311 Dyer, IN 7.1 mi

Find every ZIP code within 10 miles of 46325 →

Questions about this ZIP code

Where is ZIP code 46325?

46325 is in Hammond, Indiana, in Lake County, part of the Chicago-Naperville-Elgin, IL-IN metropolitan area. Its published point location is 41.4615, -87.3728.

What county is 46325 in?

46325 lies in Lake County.

What area code is 46325?

Hammond uses area code 219, from NANPA's telephone records.

What time zone is 46325 in?

46325 uses America/Chicago.

What ZIP codes are near 46325?

The closest are 46411 (0 mi), 46410 (2.4 mi), 46308 (3.1 mi), 46375 (4.6 mi) and 46307 (4.8 mi).

Is 46325 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. “46325 ZIP Code — Hammond, Indiana (Lake County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/46325

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/46325.json

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