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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/66612

66612

ZIP 66612 is in Topeka, Kansas, in Shawnee County; area code 785; Central time. Topeka has 31 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Shawnee
Metro area
Topeka, KS
Population
1,754
Coordinates
39.0402, -95.6803
☼ Live from 66612 — Topeka, KS

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Local time: —

Where 66612 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 66612
  • 🔢 Type 66612 into a pocket calculator and turn it upside down: ZIggg — not quite a word, sorry.
  • ➕ As a number, 66,612 = 2 × 2 × 3 × 7 × 13 × 61. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000010000110100
  • 🏠 Its numerical neighbours: 66611 (Topeka, KS, 2 mi away) and 66614 (Topeka, KS, 9 mi away).
  • 🔄 Backwards, 66612 becomes 21666 — and that is a real ZIP code: Stevensville, MD, 1,037 miles away.
  • 👥 6 other ZIP codes are made of exactly the same digits (16662, 21666, 61266, 62661, 66216, 66621). The farthest-flung twin is 21666 in Stevensville, MD, 1,037 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther west than 70%.
  • 🎯164 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 66612 and you would come out at 39.04°S, 84.32°E — 994 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 1.1 square miles of land, 66612 is bigger than 8% of ZIP codes — about 515 football fields.
🌙 The sky over 66612 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,754This ZIP1,754
Households1,143This ZIP1,143
Housing units1,339This ZIP1,339
Median age41.0This ZIP41.0Kansas37.4US 38.9
Median household income$26,067This ZIP$26,067Kansas$74,275US $80,734
Median gross rent$716This ZIP$716Kansas$1,060US $1,413
Bachelor's degree or higher19.2%This ZIP19.2%
Mean commute14.1 minThis ZIP14.1 min
Population density1,646.9 / sq miThis ZIP1,646.9 / sq mi

Business and tax activity

Business establishments205This ZIP205
Employees2,824This ZIP2,824
Annual payroll$207,107,000This ZIP$207,107,000
Tax returns filed800This ZIP800
Total adjusted gross income$27,329,000This ZIP$27,329,000

Land area

Land area1.07 sq miThis ZIP1.07 sq mi
Water area0.00 sq mi

Other place names in 66612

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

ZIP codes near 66612

ZIPCityDistance
66601 Topeka, KS 0.6 mi
66625 Topeka, KS 0.6 mi
66626 Topeka, KS 0.6 mi
66629 Topeka, KS 0.6 mi
66630 Topeka, KS 0.6 mi
66636 Topeka, KS 0.6 mi
66683 Topeka, KS 0.6 mi
66699 Topeka, KS 0.6 mi
66603 Topeka, KS 1.2 mi
66621 Topeka, KS 1.3 mi

Find every ZIP code within 10 miles of 66612 →

Questions about this ZIP code

Where is ZIP code 66612?

66612 is in Topeka, Kansas, in Shawnee County, part of the Topeka, KS metropolitan area. Its published point location is 39.0402, -95.6803.

What county is 66612 in?

66612 lies in Shawnee County.

What area code is 66612?

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

What time zone is 66612 in?

66612 uses America/Chicago.

How many people live in 66612?

About 1,754 people live in ZIP code 66612, in 1,143 households, at 1,646.9 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 66612?

$26,067 a year, against $74,275 across Kansas.

What ZIP codes are near 66612?

The closest are 66601 (0.6 mi), 66625 (0.6 mi), 66626 (0.6 mi), 66629 (0.6 mi) and 66630 (0.6 mi).

Is 66612 a PO Box ZIP code?

66612 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “66612 ZIP Code — Topeka, Kansas (Shawnee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66612

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