45051
ZIP 45051 is Mount Saint Joseph, Ohio, in Hamilton County; area codes 513 and 283; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Hamilton
- Metro area
- Cincinnati, OH-KY-IN
- Population
- 334
- Coordinates
- 39.0998, -84.6551
Weather right now
Asking the National Weather Service…
Where 45051 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 45051 into a pocket calculator and turn it upside down: ISOSh — not quite a word, sorry.
- ➕ As a number, 45,051 = 3 × 15017. Its digits add up to 15, a total 1,657 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1010111111111011 - 🏠 Its numerical neighbours: 45050 (Monroe, OH, 28 mi away) and 45052 (North Bend, OH, 7 mi away).
- 🔄 Backwards, 45051 becomes 15054 — and that is a real ZIP code: Langeloth, PA, 242 miles away.
- 👥 37 other ZIP codes are made of exactly the same digits (01545, 04551, 05154, 05451, 10455, 10545, …). The farthest-flung twin is 04551 in Bremen, ME, 855 miles away.
- 🧭 Farther south than 50% of all ZIP codes, and farther east than 57%.
- 🎯744 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 45051 and you would come out at 39.10°S, 95.34°E — 1,251 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
- 📏 At 0.454 square miles of land, 45051 is bigger than 5% of ZIP codes — about 220 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 334This ZIP334 |
|---|---|
| Households | 31This ZIP31 |
| Housing units | 31This ZIP31 |
| Median age | 72.2This ZIP72.2Ohio39.7US 38.9 |
| Median household income | $66,932This ZIP$66,932Ohio$71,389US $80,734 |
| Bachelor's degree or higher | 38.0%This ZIP38.0% |
| Mean commute | 15.9 minThis ZIP15.9 min |
| Population density | 735.7 / sq miThis ZIP735.7 / sq mi |
Business and tax activity
| Business establishments | 3This ZIP3 |
|---|---|
| Employees | 312This ZIP312 |
| Annual payroll | $11,093,000This ZIP$11,093,000 |
Land area
| Land area | 0.45 sq miThis ZIP0.45 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 45051
| ZIP | City | Distance |
|---|---|---|
45233 | Cincinnati, OH | 1.5 mi |
45238 | Cincinnati, OH | 2.6 mi |
41048 | Hebron, KY | 2.8 mi |
41025 | Erlanger, KY | 3.0 mi |
45001 | Addyston, OH | 4.1 mi |
45204 | Cincinnati, OH | 4.2 mi |
45205 | Cincinnati, OH | 4.4 mi |
45248 | Cincinnati, OH | 4.5 mi |
45211 | Cincinnati, OH | 5.0 mi |
41021 | Hebron, KY | 5.3 mi |
Find every ZIP code within 10 miles of 45051 →
Questions about this ZIP code
Where is ZIP code 45051?
45051 is in Mount Saint Joseph, Ohio, in Hamilton County, part of the Cincinnati, OH-KY-IN metropolitan area. Its published point location is 39.0998, -84.6551.
What county is 45051 in?
45051 lies in Hamilton County.
What area code is 45051?
Mount Saint Joseph uses area codes 513 and 283, from NANPA's telephone records.
What time zone is 45051 in?
45051 uses America/New_York.
How many people live in 45051?
About 334 people live in ZIP code 45051, in 31 households, at 735.7 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 45051?
$66,932 a year, against $71,389 across Ohio.
What ZIP codes are near 45051?
The closest are 45233 (1.5 mi), 45238 (2.6 mi), 41048 (2.8 mi), 41025 (3 mi) and 45001 (4.1 mi).
Is 45051 a PO Box ZIP code?
45051 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “45051 ZIP Code — Mount Saint Joseph, Ohio (Hamilton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45051
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/45051.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.