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zipcodes.pro — ZIP/66604

66604

ZIP 66604 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
23,006
Coordinates
39.0390, -95.7262
☼ Live from 66604 — Topeka, KS

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Where 66604 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 66604
  • 🔢 Type 66604 into a pocket calculator and turn it upside down: hOggg — not quite a word, sorry.
  • ➕ As a number, 66,604 = 2 × 2 × 16651. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000010000101100
  • 🏠 Its numerical neighbours: 66603 (Topeka, KS, 3 mi away) and 66605 (Topeka, KS, 5 mi away).
  • 🔄 Backwards, 66604 becomes 40666, which is not a ZIP code at all.
  • 👥 10 other ZIP codes are made of exactly the same digits (04666, 46660, 60466, 60646, 60664, 64066, …). The farthest-flung twin is 04666 in Pembroke, ME, 1,511 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther west than 71%.
  • 🎯162 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 66604 and you would come out at 39.04°S, 84.27°E — 993 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 6.8 square miles of land, 66604 is bigger than 22% of ZIP codes — room for about 5.1 Central Parks.
🌙 The sky over 66604 today
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🌋 Shake report
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Source: USGS.

People and housing

Population23,006This ZIP23,006
Households9,806This ZIP9,806
Housing units10,699This ZIP10,699
Median age37.3This ZIP37.3Kansas37.4US 38.9
Median household income$60,874This ZIP$60,874Kansas$74,275US $80,734
Median home value$139,100This ZIP$139,100Kansas$217,200US $332,700
Median gross rent$1,082This ZIP$1,082Kansas$1,060US $1,413
Bachelor's degree or higher35.6%This ZIP35.6%
Mean commute14.6 minThis ZIP14.6 min
Population density3,403.8 / sq miThis ZIP3,403.8 / sq mi

Business and tax activity

Business establishments668This ZIP668
Employees16,199This ZIP16,199
Annual payroll$813,221,000This ZIP$813,221,000
Tax returns filed10,940This ZIP10,940
Total adjusted gross income$623,359,000This ZIP$623,359,000

Land area

Land area6.76 sq miThis ZIP6.76 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

Other place names in 66604

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

ZIP codes near 66604

ZIPCityDistance
66622 Topeka, KS 0.9 mi
66621 Topeka, KS 1.3 mi
66606 Topeka, KS 1.6 mi
66611 Topeka, KS 2.1 mi
66620 Topeka, KS 2.4 mi
66624 Topeka, KS 2.4 mi
66647 Topeka, KS 2.4 mi
66667 Topeka, KS 2.4 mi
66675 Topeka, KS 2.4 mi
66612 Topeka, KS 2.5 mi

Find every ZIP code within 10 miles of 66604 →

Questions about this ZIP code

Where is ZIP code 66604?

66604 is in Topeka, Kansas, in Shawnee County, part of the Topeka, KS metropolitan area. Its published point location is 39.0390, -95.7262.

What county is 66604 in?

66604 lies in Shawnee County.

What area code is 66604?

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

What time zone is 66604 in?

66604 uses America/Chicago.

How many people live in 66604?

About 23,006 people live in ZIP code 66604, in 9,806 households, at 3,403.8 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 66604?

$60,874 a year, against $74,275 across Kansas.

What ZIP codes are near 66604?

The closest are 66622 (0.9 mi), 66621 (1.3 mi), 66606 (1.6 mi), 66611 (2.1 mi) and 66620 (2.4 mi).

Is 66604 a PO Box ZIP code?

66604 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “66604 ZIP Code — Topeka, Kansas (Shawnee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66604

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