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/46203

46203

ZIP 46203 is in Indianapolis, Indiana, in Marion County; area codes 317 and 463; Eastern time. Indianapolis has 63 ZIP codes in all.

Type
Standard
Time zone
America/Indiana/Indianapolis
County
Marion
Population
37,758
Coordinates
39.7368, -86.0958
☼ Live from 46203 — Indianapolis, IN

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 46203 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 46203
  • 🔢 Type 46203 into a pocket calculator and turn it upside down: EOZgh — not quite a word, sorry.
  • ➕ As a number, 46,203 = 3 × 15401. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011010001111011
  • 🏠 Its numerical neighbours: 46202 (Indianapolis, IN, 5 mi away) and 46204 (Indianapolis, IN, 4 mi away).
  • 🔄 Backwards, 46203 becomes 30264 — and that is a real ZIP code: Newnan, GA, 446 miles away.
  • 👥 63 other ZIP codes are made of exactly the same digits (02346, 02364, 02634, 02643, 03246, 03264, …). The farthest-flung twin is 04623 in Columbia Falls, ME, 998 miles away.
  • 🧭 Farther north than 54% of all ZIP codes, and farther east than 54%.
  • 🎯662 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 46203 and you would come out at 39.74°S, 93.90°E — 1,334 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 21m.
  • 📏 At 13.9 square miles of land, 46203 is bigger than 32% of ZIP codes — room for about 11 Central Parks.
🌙 The sky over 46203 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population37,758This ZIP37,758
Households15,996This ZIP15,996
Housing units18,512This ZIP18,512
Median age34.5This ZIP34.5Indiana38.1US 38.9
Median household income$57,393This ZIP$57,393Indiana$71,957US $80,734
Median home value$168,200This ZIP$168,200Indiana$218,200US $332,700
Median gross rent$1,111This ZIP$1,111Indiana$1,062US $1,413
Bachelor's degree or higher28.4%This ZIP28.4%
Mean commute22.3 minThis ZIP22.3 min
Population density2,708.8 / sq miThis ZIP2,708.8 / sq mi

Business and tax activity

Business establishments880This ZIP880
Employees15,332This ZIP15,332
Annual payroll$928,568,000This ZIP$928,568,000
Tax returns filed17,570This ZIP17,570
Total adjusted gross income$966,021,000This ZIP$966,021,000

Land area

Land area13.94 sq miThis ZIP13.94 sq mi
Water area0.00 sq mi

Other place names in 46203

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

ZIP codes near 46203

ZIPCityDistance
46107 Beech Grove, IN 1.4 mi
46201 Indianapolis, IN 2.6 mi
46209 Indianapolis, IN 3.5 mi
46211 Indianapolis, IN 3.5 mi
46230 Indianapolis, IN 3.5 mi
46242 Indianapolis, IN 3.5 mi
46244 Indianapolis, IN 3.5 mi
46247 Indianapolis, IN 3.5 mi
46251 Indianapolis, IN 3.5 mi
46253 Indianapolis, IN 3.5 mi

Find every ZIP code within 10 miles of 46203 →

Questions about this ZIP code

Where is ZIP code 46203?

46203 is in Indianapolis, Indiana, in Marion County, part of the Indianapolis-Carmel-Greenwood, IN metropolitan area. Its published point location is 39.7368, -86.0958.

What county is 46203 in?

46203 lies in Marion County.

What area code is 46203?

Indianapolis uses area codes 317 and 463, from NANPA's telephone records.

What time zone is 46203 in?

46203 uses America/Indiana/Indianapolis.

How many people live in 46203?

About 37,758 people live in ZIP code 46203, in 15,996 households, at 2,708.8 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 46203?

$57,393 a year, against $71,957 across Indiana.

What ZIP codes are near 46203?

The closest are 46107 (1.4 mi), 46201 (2.6 mi), 46209 (3.5 mi), 46211 (3.5 mi) and 46230 (3.5 mi).

Is 46203 a PO Box ZIP code?

46203 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “46203 ZIP Code — Indianapolis, Indiana (Marion County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/46203

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/46203.json

Underlying data is public domain or openly licensed — sources, vintages and licences.