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/66203

66203

ZIP 66203 is in Shawnee, Kansas, in Johnson County; area code 913; Central time. Shawnee has 6 ZIP codes; the others are 66216, 66217, 66218, 66226 and 66286.

Type
Standard
Time zone
America/Chicago
County
Johnson
Metro area
Kansas City, MO-KS
Population
19,441
Coordinates
39.0204, -94.7058
☼ Live from 66203 — Shawnee, KS

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 66203 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 66203
  • 🔢 Type 66203 into a pocket calculator and turn it upside down: EOZgg — not quite a word, sorry.
  • ➕ As a number, 66,203 = 239 × 277. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000001010011011
  • 🏠 Its numerical neighbours: 66202 (Mission, KS, 2 mi away) and 66204 (Overland Park, KS, 3 mi away).
  • 🔄 Backwards, 66203 becomes 30266 — and that is a real ZIP code: Orchard Hill, GA, 703 miles away.
  • 👥 29 other ZIP codes are made of exactly the same digits (02366, 02663, 03266, 06263, 20636, 23066, …). The farthest-flung twin is 02663 in South Wellfleet, MA, 1,311 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther west than 68%.
  • 🎯214 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 66203 and you would come out at 39.02°S, 85.29°E — 1,029 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
  • 📏 At 6.3 square miles of land, 66203 is bigger than 21% of ZIP codes — room for about 4.8 Central Parks.
🌙 The sky over 66203 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population19,441This ZIP19,441
Households8,538This ZIP8,538
Housing units8,868This ZIP8,868
Median age38.2This ZIP38.2Kansas37.4US 38.9
Median household income$75,869This ZIP$75,869Kansas$74,275US $80,734
Median home value$254,900This ZIP$254,900Kansas$217,200US $332,700
Median gross rent$1,244This ZIP$1,244Kansas$1,060US $1,413
Bachelor's degree or higher37.7%This ZIP37.7%
Mean commute22.7 minThis ZIP22.7 min
Population density3,103.6 / sq miThis ZIP3,103.6 / sq mi

Business and tax activity

Business establishments585This ZIP585
Employees7,565This ZIP7,565
Annual payroll$409,296,000This ZIP$409,296,000
Tax returns filed9,660This ZIP9,660
Total adjusted gross income$627,912,000This ZIP$627,912,000

Land area

Land area6.26 sq miThis ZIP6.26 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 66203

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

ZIP codes near 66203

ZIPCityDistance
66286 Shawnee, KS 1.7 mi
66202 Mission, KS 2.0 mi
66216 Shawnee, KS 2.0 mi
66204 Overland Park, KS 2.6 mi
66201 Mission, KS 2.7 mi
66222 Mission, KS 2.7 mi
66106 Kansas City, KS 3.4 mi
66217 Shawnee, KS 3.8 mi
66113 Edwardsville, KS 3.8 mi
66214 Overland Park, KS 4.0 mi

Find every ZIP code within 10 miles of 66203 →

Questions about this ZIP code

Where is ZIP code 66203?

66203 is in Shawnee, Kansas, in Johnson County, part of the Kansas City, MO-KS metropolitan area. Its published point location is 39.0204, -94.7058.

What county is 66203 in?

66203 lies in Johnson County.

What area code is 66203?

Shawnee uses area code 913, from NANPA's telephone records.

What time zone is 66203 in?

66203 uses America/Chicago.

How many people live in 66203?

About 19,441 people live in ZIP code 66203, in 8,538 households, at 3,103.6 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 66203?

$75,869 a year, against $74,275 across Kansas.

What ZIP codes are near 66203?

The closest are 66286 (1.7 mi), 66202 (2 mi), 66216 (2 mi), 66204 (2.6 mi) and 66201 (2.7 mi).

Is 66203 a PO Box ZIP code?

66203 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “66203 ZIP Code — Shawnee, Kansas (Johnson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66203

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/66203.json

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