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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/37404

37404

ZIP 37404 is in Chattanooga, Tennessee, in Hamilton County; area code 423; Eastern time. Chattanooga has 20 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Hamilton
Metro area
Chattanooga, TN-GA
Population
14,737
Coordinates
35.0282, -85.2733
☼ Live from 37404 — Chattanooga, TN

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Local time: —

Where 37404 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 37404
  • 🔢 Type 37404 into a pocket calculator and turn it upside down: hOhLE — not quite a word, sorry.
  • ➕ As a number, 37,404 = 2 × 2 × 3 × 3 × 1039. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001001000011100
  • 🏠 Its numerical neighbours: 37403 (Chattanooga, TN, 2 mi away) and 37405 (Chattanooga, TN, 9 mi away).
  • 🔄 Backwards, 37404 becomes 40473 — and that is a real ZIP code: Renfro Valley, KY, 171 miles away.
  • 👥 39 other ZIP codes are made of exactly the same digits (03447, 04347, 04473, 04734, 04743, 30447, …). The farthest-flung twin is 04734 in Blaine, ME, 1,200 miles away.
  • 🧭 Farther south than 74% of all ZIP codes, and farther east than 56%.
  • 🎯801 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 37404 and you would come out at 35.03°S, 94.73°E — 1,234 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 31m of daylight. Shortest: 9h 48m.
  • 📏 At 5.2 square miles of land, 37404 is bigger than 19% of ZIP codes — room for about 3.9 Central Parks.
🌙 The sky over 37404 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population14,737This ZIP14,737
Households5,057This ZIP5,057
Housing units6,079This ZIP6,079
Median age34.5This ZIP34.5Tennessee38.9US 38.9
Median household income$56,637This ZIP$56,637Tennessee$69,595US $80,734
Median home value$255,400This ZIP$255,400Tennessee$286,700US $332,700
Median gross rent$1,094This ZIP$1,094Tennessee$1,189US $1,413
Bachelor's degree or higher33.0%This ZIP33.0%
Mean commute16.7 minThis ZIP16.7 min
Population density2,843.9 / sq miThis ZIP2,843.9 / sq mi

Business and tax activity

Business establishments457This ZIP457
Employees11,073This ZIP11,073
Annual payroll$789,939,000This ZIP$789,939,000
Tax returns filed5,540This ZIP5,540
Total adjusted gross income$359,491,000This ZIP$359,491,000

Land area

Land area5.18 sq miThis ZIP5.18 sq mi
Water area0.00 sq mi

Other place names in 37404

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

ZIP codes near 37404

ZIPCityDistance
37403 Chattanooga, TN 1.8 mi
37407 Chattanooga, TN 2.0 mi
37408 Chattanooga, TN 2.2 mi
37401 Chattanooga, TN 2.4 mi
37414 Chattanooga, TN 2.4 mi
37422 Chattanooga, TN 2.4 mi
37424 Chattanooga, TN 2.4 mi
37411 Chattanooga, TN 2.4 mi
37450 Chattanooga, TN 2.6 mi
37402 Chattanooga, TN 2.8 mi

Find every ZIP code within 10 miles of 37404 →

Questions about this ZIP code

Where is ZIP code 37404?

37404 is in Chattanooga, Tennessee, in Hamilton County, part of the Chattanooga, TN-GA metropolitan area. Its published point location is 35.0282, -85.2733.

What county is 37404 in?

37404 lies in Hamilton County.

What area code is 37404?

Chattanooga uses area code 423, from NANPA's telephone records.

What time zone is 37404 in?

37404 uses America/New_York.

How many people live in 37404?

About 14,737 people live in ZIP code 37404, in 5,057 households, at 2,843.9 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 37404?

$56,637 a year, against $69,595 across Tennessee.

What ZIP codes are near 37404?

The closest are 37403 (1.8 mi), 37407 (2 mi), 37408 (2.2 mi), 37401 (2.4 mi) and 37414 (2.4 mi).

Is 37404 a PO Box ZIP code?

37404 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “37404 ZIP Code — Chattanooga, Tennessee (Hamilton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37404

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