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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/46304

46304

ZIP 46304 is Chesterton, Indiana, in Porter County; area code 219; Central time.

Type
Standard
Time zone
America/Chicago
County
Porter
Population
28,307
Coordinates
41.6145, -87.0504
☼ Live from 46304 — Chesterton, IN

Weather right now

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Local time: —

Where 46304 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 46304
  • 🔢 Type 46304 into a pocket calculator and turn it upside down: hOEgh — not quite a word, sorry.
  • ➕ As a number, 46,304 = 2 × 2 × 2 × 2 × 2 × 1447. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011010011100000
  • 🏠 Its numerical neighbours: 46303 (Cedar Lake, IN, 28 mi away) and 46307 (Crown Point, IN, 20 mi away).
  • 🔄 Backwards, 46304 becomes 40364, which is not a ZIP code at all.
  • 👥 31 other ZIP codes are made of exactly the same digits (03446, 03464, 04346, 04364, 04463, 04634, …). The farthest-flung twin is 34046 in APO AA, a military post office, 1,902 miles away.
  • 🧭 Farther north than 72% of all ZIP codes, and farther east than 51%.
  • 🎯616 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 46304 and you would come out at 41.61°S, 92.95°E — 1,218 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
  • 📏 At 57.8 square miles of land, 46304 is bigger than 63% of ZIP codes — room for about 44 Central Parks.
🌙 The sky over 46304 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population28,307This ZIP28,307
Households11,383This ZIP11,383
Housing units12,117This ZIP12,117
Median age40.5This ZIP40.5Indiana38.1US 38.9
Median household income$91,326This ZIP$91,326Indiana$71,957US $80,734
Median home value$293,100This ZIP$293,100Indiana$218,200US $332,700
Median gross rent$1,223This ZIP$1,223Indiana$1,062US $1,413
Bachelor's degree or higher36.3%This ZIP36.3%
Mean commute26.7 minThis ZIP26.7 min
Population density489.9 / sq miThis ZIP489.9 / sq mi

Business and tax activity

Business establishments642This ZIP642
Employees12,975This ZIP12,975
Annual payroll$915,670,000This ZIP$915,670,000
Tax returns filed13,750This ZIP13,750
Total adjusted gross income$1,336,599,000This ZIP$1,336,599,000

Land area

Land area57.78 sq miThis ZIP57.78 sq mi
Water area4.00 sq miThis ZIP4.00 sq mi

Other place names in 46304

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 46304

ZIPCityDistance
46301 Beverly Shores, IN 6.7 mi
46368 Portage, IN 6.8 mi
46391 Westville, IN 8.0 mi
46384 Valparaiso, IN 8.7 mi
46393 Wheeler, IN 9.2 mi
46361 Michigan City, IN 9.3 mi
46403 Gary, IN 10.7 mi
46360 Michigan City, IN 10.9 mi
46385 Valparaiso, IN 11.1 mi
46383 Valparaiso, IN 11.1 mi

Find every ZIP code within 10 miles of 46304 →

Questions about this ZIP code

Where is ZIP code 46304?

46304 is in Chesterton, Indiana, in Porter County, part of the Chicago-Naperville-Elgin, IL-IN metropolitan area. Its published point location is 41.6145, -87.0504.

What county is 46304 in?

46304 lies in Porter County.

What area code is 46304?

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

What time zone is 46304 in?

46304 uses America/Chicago.

How many people live in 46304?

About 28,307 people live in ZIP code 46304, in 11,383 households, at 489.9 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 46304?

$91,326 a year, against $71,957 across Indiana.

What ZIP codes are near 46304?

The closest are 46301 (6.7 mi), 46368 (6.8 mi), 46391 (8 mi), 46384 (8.7 mi) and 46393 (9.2 mi).

Is 46304 a PO Box ZIP code?

46304 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “46304 ZIP Code — Chesterton, Indiana (Porter County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/46304

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