45431
ZIP 45431 is in Dayton, Ohio, mostly in Greene County; area codes 937 and 326; Eastern time. Dayton has 43 ZIP codes in all.
- Type
- Standard
- Time zone
- America/New_York
- County
- Greene +1 more
- Metro area
- Dayton-Kettering-Beavercreek, OH
- Population
- 27,951
- Coordinates
- 39.7638, -84.0842
Weather right now
Asking the National Weather Service…
Where 45431 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.
- 🔢 Type 45431 into a pocket calculator and turn it upside down: IEhSh — not quite a word, sorry.
- ➕ As a number, 45,431 = 181 × 251. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011000101110111 - 🏠 Its numerical neighbours: 45430 (Dayton, OH, 3 mi away) and 45432 (Dayton, OH, 2 mi away).
- 🔄 Backwards, 45431 becomes 13454 — and that is a real ZIP code: Salisbury Center, NY, 537 miles away.
- 👥 29 other ZIP codes are made of exactly the same digits (13454, 14435, 14453, 14534, 14543, 15344, …). The farthest-flung twin is 34145 in Marco Island, FL, 967 miles away.
- 🧭 Farther north than 54% of all ZIP codes, and farther east than 60%.
- 🎯769 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 45431 and you would come out at 39.76°S, 95.92°E — 1,237 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 21m.
- 📏 At 11.7 square miles of land, 45431 is bigger than 29% of ZIP codes — room for about 8.9 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 27,951This ZIP27,951 |
|---|---|
| Households | 12,529This ZIP12,529 |
| Housing units | 13,565This ZIP13,565 |
| Median age | 35.4This ZIP35.4Ohio39.7US 38.9 |
| Median household income | $83,175This ZIP$83,175Ohio$71,389US $80,734 |
| Median home value | $209,500This ZIP$209,500Ohio$214,800US $332,700 |
| Median gross rent | $1,327This ZIP$1,327Ohio$1,034US $1,413 |
| Bachelor's degree or higher | 36.0%This ZIP36.0% |
| Mean commute | 19.6 minThis ZIP19.6 min |
| Population density | 2,382.3 / sq miThis ZIP2,382.3 / sq mi |
Business and tax activity
| Business establishments | 626This ZIP626 |
|---|---|
| Employees | 13,891This ZIP13,891 |
| Annual payroll | $898,356,000This ZIP$898,356,000 |
| Tax returns filed | 13,330This ZIP13,330 |
| Total adjusted gross income | $968,315,000This ZIP$968,315,000 |
Land area
| Land area | 11.73 sq miThis ZIP11.73 sq mi |
|---|---|
| Water area | 0.00 sq miThis ZIP0.00 sq mi |
Counties 45431 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Greene County | 61.7% |
| Montgomery County | 38.3% |
Other place names in 45431
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 45431
| ZIP | City | Distance |
|---|---|---|
45435 | Dayton, OH | 1.6 mi |
45432 | Dayton, OH | 1.7 mi |
45430 | Dayton, OH | 3.2 mi |
45403 | Dayton, OH | 3.5 mi |
45420 | Dayton, OH | 3.9 mi |
45404 | Dayton, OH | 4.0 mi |
45434 | Dayton, OH | 4.0 mi |
45410 | Dayton, OH | 4.1 mi |
45433 | Dayton, OH | 4.5 mi |
45301 | Alpha, OH | 4.9 mi |
Find every ZIP code within 10 miles of 45431 →
Questions about this ZIP code
Where is ZIP code 45431?
45431 is in Dayton, Ohio, in Greene County, part of the Dayton-Kettering-Beavercreek, OH metropolitan area. Its published point location is 39.7638, -84.0842.
What county is 45431 in?
45431 spans 2 counties: Greene County and Montgomery County. Most of it falls in Greene County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 45431?
Dayton uses area codes 937 and 326, from NANPA's telephone records.
What time zone is 45431 in?
45431 uses America/New_York.
How many people live in 45431?
About 27,951 people live in ZIP code 45431, in 12,529 households, at 2,382.3 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 45431?
$83,175 a year, against $71,389 across Ohio.
What ZIP codes are near 45431?
The closest are 45435 (1.6 mi), 45432 (1.7 mi), 45430 (3.2 mi), 45403 (3.5 mi) and 45420 (3.9 mi).
Is 45431 a PO Box ZIP code?
45431 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “45431 ZIP Code — Dayton, Ohio (Greene County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45431
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/45431.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.