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/45404

45404

ZIP 45404 is in Dayton, Ohio, in Montgomery County; area codes 937 and 326; Eastern time. Dayton has 43 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Montgomery
Population
9,826
Coordinates
39.7885, -84.1527
☼ Live from 45404 — Dayton, OH

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 45404 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 45404
  • 🔢 Type 45404 into a pocket calculator and turn it upside down: hOhSh — not quite a word, sorry.
  • ➕ As a number, 45,404 = 2 × 2 × 11351. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011000101011100
  • 🏠 Its numerical neighbours: 45403 (Dayton, OH, 2 mi away) and 45405 (Dayton, OH, 3 mi away).
  • 🔄 Backwards, 45404 becomes 40454, which is not a ZIP code at all.
  • 👥 15 other ZIP codes are made of exactly the same digits (04454, 04544, 05444, 40445, 40544, 44045, …). The farthest-flung twin is 04454 in Lambert Lake, ME, 930 miles away.
  • 🧭 Farther north than 54% of all ZIP codes, and farther east than 59%.
  • 🎯765 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 45404 and you would come out at 39.79°S, 95.85°E — 1,241 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 00m of daylight. Shortest: 9h 21m.
  • 📏 At 7.6 square miles of land, 45404 is bigger than 24% of ZIP codes — room for about 5.7 Central Parks.
🌙 The sky over 45404 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population9,826This ZIP9,826
Households4,280This ZIP4,280
Housing units4,781This ZIP4,781
Median age35.7This ZIP35.7Ohio39.7US 38.9
Median household income$38,874This ZIP$38,874Ohio$71,389US $80,734
Median home value$86,900This ZIP$86,900Ohio$214,800US $332,700
Median gross rent$884This ZIP$884Ohio$1,034US $1,413
Bachelor's degree or higher10.2%This ZIP10.2%
Mean commute21.8 minThis ZIP21.8 min
Population density1,300.1 / sq miThis ZIP1,300.1 / sq mi

Business and tax activity

Business establishments345This ZIP345
Employees13,607This ZIP13,607
Annual payroll$830,090,000This ZIP$830,090,000
Tax returns filed4,230This ZIP4,230
Total adjusted gross income$158,974,000This ZIP$158,974,000

Land area

Land area7.56 sq miThis ZIP7.56 sq mi
Water area0.36 sq miThis ZIP0.36 sq mi

Other place names in 45404

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

ZIP codes near 45404

ZIPCityDistance
45403 Dayton, OH 1.7 mi
45423 Dayton, OH 2.8 mi
45410 Dayton, OH 2.8 mi
45412 Dayton, OH 2.9 mi
45422 Dayton, OH 3.3 mi
45405 Dayton, OH 3.4 mi
45402 Dayton, OH 3.5 mi
45469 Dayton, OH 3.6 mi
45431 Dayton, OH 4.0 mi
45479 Dayton, OH 4.3 mi

Find every ZIP code within 10 miles of 45404 →

Questions about this ZIP code

Where is ZIP code 45404?

45404 is in Dayton, Ohio, in Montgomery County, part of the Dayton-Kettering-Beavercreek, OH metropolitan area. Its published point location is 39.7885, -84.1527.

What county is 45404 in?

45404 lies in Montgomery County.

What area code is 45404?

Dayton uses area codes 937 and 326, from NANPA's telephone records.

What time zone is 45404 in?

45404 uses America/New_York.

How many people live in 45404?

About 9,826 people live in ZIP code 45404, in 4,280 households, at 1,300.1 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 45404?

$38,874 a year, against $71,389 across Ohio.

What ZIP codes are near 45404?

The closest are 45403 (1.7 mi), 45423 (2.8 mi), 45410 (2.8 mi), 45412 (2.9 mi) and 45422 (3.3 mi).

Is 45404 a PO Box ZIP code?

45404 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “45404 ZIP Code — Dayton, Ohio (Montgomery County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45404

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/45404.json

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