45115
ZIP 45115 is Decatur, Ohio, in Brown County; area code 937; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Brown
- Metro area
- Cincinnati, OH-KY-IN
- Population
- 151
- Coordinates
- 38.8082, -83.7073
Weather right now
Asking the National Weather Service…
Where 45115 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 45115 into a pocket calculator and turn it upside down: SIISh — not quite a word, sorry.
- ➕ As a number, 45,115 = 5 × 7 × 1289. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011000000111011 - 🏠 Its numerical neighbours: 45114 (Cuba, OH, 39 mi away) and 45118 (Fayetteville, OH, 28 mi away).
- 🔄 Backwards, 45115 becomes 51154, which is not a ZIP code at all.
- 👥 15 other ZIP codes are made of exactly the same digits (11545, 11554, 14515, 14551, 15145, 15415, …). The farthest-flung twin is 55411 in Minneapolis, MN, 652 miles away.
- 🧭 Farther south than 53% of all ZIP codes, and farther east than 61%.
- 🎯797 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 45115 and you would come out at 38.81°S, 96.29°E — 1,197 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 53m of daylight. Shortest: 9h 27m.
- 📏 At 4.5 square miles of land, 45115 is bigger than 18% of ZIP codes — room for about 3.4 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 151This ZIP151 |
|---|---|
| Households | 55This ZIP55 |
| Housing units | 55This ZIP55 |
| Median age | 27.5This ZIP27.5Ohio39.7US 38.9 |
| Median household income | $49,844This ZIP$49,844Ohio$71,389US $80,734 |
| Bachelor's degree or higher | 63.5%This ZIP63.5% |
| Mean commute | 45.1 minThis ZIP45.1 min |
| Population density | 33.4 / sq miThis ZIP33.4 / sq mi |
Land area
| Land area | 4.52 sq miThis ZIP4.52 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 45115
| ZIP | City | Distance |
|---|---|---|
45168 | Russellville, OH | 4.4 mi |
45167 | Ripley, OH | 4.8 mi |
45105 | Bentonville, OH | 6.5 mi |
45618 | Cherry Fork, OH | 7.2 mi |
45101 | Aberdeen, OH | 7.8 mi |
45697 | Winchester, OH | 8.7 mi |
45144 | Manchester, OH | 8.7 mi |
45693 | West Union, OH | 9.4 mi |
45121 | Georgetown, OH | 11.6 mi |
41034 | Dover, KY | 13.3 mi |
Find every ZIP code within 10 miles of 45115 →
Questions about this ZIP code
Where is ZIP code 45115?
45115 is in Decatur, Ohio, in Brown County, part of the Cincinnati, OH-KY-IN metropolitan area. Its published point location is 38.8082, -83.7073.
What county is 45115 in?
45115 lies in Brown County.
What area code is 45115?
Decatur uses area code 937, from NANPA's telephone records.
What time zone is 45115 in?
45115 uses America/New_York.
How many people live in 45115?
About 151 people live in ZIP code 45115, in 55 households, at 33.4 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 45115?
$49,844 a year, against $71,389 across Ohio.
What ZIP codes are near 45115?
The closest are 45168 (4.4 mi), 45167 (4.8 mi), 45105 (6.5 mi), 45618 (7.2 mi) and 45101 (7.8 mi).
Is 45115 a PO Box ZIP code?
45115 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “45115 ZIP Code — Decatur, Ohio (Brown County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45115
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/45115.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.