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/45409

45409

ZIP 45409 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
15,293
Coordinates
39.7213, -84.1880
☼ Live from 45409 — Dayton, OH

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 45409 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 45409
  • 🔢 Type 45409 into a pocket calculator and turn it upside down: GOhSh — not quite a word, sorry.
  • ➕ As a number, 45,409 = 7 × 13 × 499. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011000101100001
  • 🏠 Its numerical neighbours: 45406 (Dayton, OH, 5 mi away) and 45410 (Dayton, OH, 2 mi away).
  • 🔄 Backwards, 45409 becomes 90454, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (04459, 04495, 04549, 04945, 04954, 05449, …). The farthest-flung twin is 95404 in Santa Rosa, CA, 2,050 miles away.
  • 🧭 Farther north than 54% of all ZIP codes, and farther east than 59%.
  • 🎯763 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 45409 and you would come out at 39.72°S, 95.81°E — 1,241 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 21m.
  • 📏 At 3.7 square miles of land, 45409 is bigger than 16% of ZIP codes — room for about 2.8 Central Parks.
🌙 The sky over 45409 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population15,293This ZIP15,293
Households3,063This ZIP3,063
Housing units3,372This ZIP3,372
Median age21.0This ZIP21.0Ohio39.7US 38.9
Median household income$87,283This ZIP$87,283Ohio$71,389US $80,734
Median home value$249,000This ZIP$249,000Ohio$214,800US $332,700
Median gross rent$1,038This ZIP$1,038Ohio$1,034US $1,413
Bachelor's degree or higher62.7%This ZIP62.7%
Mean commute16.7 minThis ZIP16.7 min
Population density4,159.1 / sq miThis ZIP4,159.1 / sq mi

Business and tax activity

Business establishments256This ZIP256
Employees4,820This ZIP4,820
Annual payroll$338,749,000This ZIP$338,749,000
Tax returns filed3,130This ZIP3,130
Total adjusted gross income$320,369,000This ZIP$320,369,000

Land area

Land area3.68 sq miThis ZIP3.68 sq mi
Water area0.04 sq miThis ZIP0.04 sq mi

Other place names in 45409

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

ZIP codes near 45409

ZIPCityDistance
45479 Dayton, OH 1.0 mi
45419 Dayton, OH 1.2 mi
45469 Dayton, OH 1.4 mi
45410 Dayton, OH 2.4 mi
45412 Dayton, OH 2.6 mi
45422 Dayton, OH 2.6 mi
45423 Dayton, OH 2.7 mi
45439 Dayton, OH 2.7 mi
45402 Dayton, OH 2.9 mi
45429 Dayton, OH 2.9 mi

Find every ZIP code within 10 miles of 45409 →

Questions about this ZIP code

Where is ZIP code 45409?

45409 is in Dayton, Ohio, in Montgomery County, part of the Dayton-Kettering-Beavercreek, OH metropolitan area. Its published point location is 39.7213, -84.1880.

What county is 45409 in?

45409 lies in Montgomery County.

What area code is 45409?

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

What time zone is 45409 in?

45409 uses America/New_York.

How many people live in 45409?

About 15,293 people live in ZIP code 45409, in 3,063 households, at 4,159.1 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 45409?

$87,283 a year, against $71,389 across Ohio.

What ZIP codes are near 45409?

The closest are 45479 (1 mi), 45419 (1.2 mi), 45469 (1.4 mi), 45410 (2.4 mi) and 45412 (2.6 mi).

Is 45409 a PO Box ZIP code?

45409 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “45409 ZIP Code — Dayton, Ohio (Montgomery County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45409

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/45409.json

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