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/66943

66943

ZIP 66943 is Greenleaf, Kansas, in Washington County; area code 785; Central time.

Type
Standard
Time zone
America/Chicago
County
Washington
Metro area
none
Population
568
Coordinates
39.6718, -96.9663
☼ Live from 66943 — Greenleaf, KS

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 66943 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 66943
  • 🔢 Type 66943 into a pocket calculator and turn it upside down: EhGgg — not quite a word, sorry.
  • ➕ 66943 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 28, a total 1,520 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000010101111111
  • 🏠 Its numerical neighbours: 66942 (Formoso, KS, 55 mi away) and 66944 (Haddam, KS, 21 mi away).
  • 🔄 Backwards, 66943 becomes 34966, which is not a ZIP code at all.
  • 👥 14 other ZIP codes are made of exactly the same digits (34669, 39466, 39664, 46936, 49636, 49663, …). The farthest-flung twin is 96364 in APO AA, a military post office, 7,042 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther west than 74%.
  • 🎯86 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 66943 and you would come out at 39.67°S, 83.03°E — 917 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 92.7 square miles of land, 66943 is bigger than 76% of ZIP codes — room for about 70 Central Parks.
🌙 The sky over 66943 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population568This ZIP568
Households214This ZIP214
Housing units240This ZIP240
Median age40.3This ZIP40.3Kansas37.4US 38.9
Median household income$67,738This ZIP$67,738Kansas$74,275US $80,734
Median home value$117,300This ZIP$117,300Kansas$217,200US $332,700
Median gross rent$613This ZIP$613Kansas$1,060US $1,413
Bachelor's degree or higher28.1%This ZIP28.1%
Mean commute29.9 minThis ZIP29.9 min
Population density6.1 / sq miThis ZIP6.1 / sq mi

Business and tax activity

Business establishments19This ZIP19
Employees104This ZIP104
Annual payroll$3,847,000This ZIP$3,847,000
Tax returns filed270This ZIP270
Total adjusted gross income$17,911,000This ZIP$17,911,000

Land area

Land area92.69 sq miThis ZIP92.69 sq mi
Water area0.25 sq miThis ZIP0.25 sq mi

Other place names in 66943

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

ZIP codes near 66943

ZIPCityDistance
66933 Barnes, KS 5.0 mi
66953 Linn, KS 8.1 mi
66962 Palmer, KS 9.3 mi
66548 Waterville, KS 10.8 mi
66968 Washington, KS 12.4 mi
67447 Green, KS 13.6 mi
66554 Randolph, KS 15.4 mi
66945 Hanover, KS 15.6 mi
66937 Clifton, KS 16.6 mi
66411 Blue Rapids, KS 17.3 mi

Find every ZIP code within 10 miles of 66943 →

Questions about this ZIP code

Where is ZIP code 66943?

66943 is in Greenleaf, Kansas, in Washington County. Its published point location is 39.6718, -96.9663.

What county is 66943 in?

66943 lies in Washington County.

What area code is 66943?

Greenleaf uses area code 785, from NANPA's telephone records.

What time zone is 66943 in?

66943 uses America/Chicago.

How many people live in 66943?

About 568 people live in ZIP code 66943, in 214 households, at 6.1 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 66943?

$67,738 a year, against $74,275 across Kansas.

What ZIP codes are near 66943?

The closest are 66933 (5 mi), 66953 (8.1 mi), 66962 (9.3 mi), 66548 (10.8 mi) and 66968 (12.4 mi).

Is 66943 a PO Box ZIP code?

66943 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “66943 ZIP Code — Greenleaf, Kansas (Washington County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66943

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/66943.json

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