45304
ZIP 45304 is Arcanum, Ohio, mostly in Darke County; area code 937; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Darke +2 more
- Metro area
- Greenville, OH
- Population
- 7,599
- Coordinates
- 39.9815, -84.5250
Weather right now
Asking the National Weather Service…
Where 45304 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 45304 into a pocket calculator and turn it upside down: hOESh — not quite a word, sorry.
- ➕ As a number, 45,304 = 2 × 2 × 2 × 7 × 809. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011000011111000 - 🏠 Its numerical neighbours: 45303 (Ansonia, OH, 18 mi away) and 45305 (Bellbrook, OH, 33 mi away).
- 🔄 Backwards, 45304 becomes 40354, which is not a ZIP code at all.
- 👥 36 other ZIP codes are made of exactly the same digits (03445, 04345, 04354, 04435, 04453, 04543, …). The farthest-flung twin is 34054 in FPO AA, a military post office, 2,088 miles away.
- 🧭 Farther north than 56% of all ZIP codes, and farther east than 58%.
- 🎯744 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 45304 and you would come out at 39.98°S, 95.47°E — 1,264 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 01m of daylight. Shortest: 9h 20m.
- 📏 At 85.2 square miles of land, 45304 is bigger than 74% of ZIP codes — room for about 65 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 7,599This ZIP7,599 |
|---|---|
| Households | 2,890This ZIP2,890 |
| Housing units | 2,955This ZIP2,955 |
| Median age | 38.5This ZIP38.5Ohio39.7US 38.9 |
| Median household income | $78,125This ZIP$78,125Ohio$71,389US $80,734 |
| Median home value | $190,200This ZIP$190,200Ohio$214,800US $332,700 |
| Median gross rent | $827This ZIP$827Ohio$1,034US $1,413 |
| Bachelor's degree or higher | 17.2%This ZIP17.2% |
| Mean commute | 30.9 minThis ZIP30.9 min |
| Population density | 89.2 / sq miThis ZIP89.2 / sq mi |
Business and tax activity
| Business establishments | 124This ZIP124 |
|---|---|
| Employees | 650This ZIP650 |
| Annual payroll | $36,685,000This ZIP$36,685,000 |
| Tax returns filed | 3,550This ZIP3,550 |
| Total adjusted gross income | $241,651,000This ZIP$241,651,000 |
Land area
| Land area | 85.15 sq miThis ZIP85.15 sq mi |
|---|---|
| Water area | 0.10 sq miThis ZIP0.10 sq mi |
Counties 45304 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Darke County | 97.9% |
| Preble County | 1.5% |
| Miami County | 0.6% |
Other place names in 45304
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 45304
| ZIP | City | Distance |
|---|---|---|
45358 | Pitsburg, OH | 2.0 mi |
45337 | Laura, OH | 5.4 mi |
45378 | Verona, OH | 5.8 mi |
45361 | Potsdam, OH | 6.0 mi |
45382 | West Manchester, OH | 7.2 mi |
45354 | Phillipsburg, OH | 8.3 mi |
45338 | Lewisburg, OH | 9.1 mi |
45328 | Gettysburg, OH | 9.4 mi |
45346 | New Madison, OH | 9.8 mi |
45339 | Ludlow Falls, OH | 9.9 mi |
Find every ZIP code within 10 miles of 45304 →
Questions about this ZIP code
Where is ZIP code 45304?
45304 is in Arcanum, Ohio, in Darke County, part of the Greenville, OH micropolitan area. Its published point location is 39.9815, -84.5250.
What county is 45304 in?
45304 spans 3 counties: Darke County, Preble County and Miami County. Most of it falls in Darke 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 45304?
Arcanum uses area code 937, from NANPA's telephone records.
What time zone is 45304 in?
45304 uses America/New_York.
How many people live in 45304?
About 7,599 people live in ZIP code 45304, in 2,890 households, at 89.2 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 45304?
$78,125 a year, against $71,389 across Ohio.
What ZIP codes are near 45304?
The closest are 45358 (2 mi), 45337 (5.4 mi), 45378 (5.8 mi), 45361 (6 mi) and 45382 (7.2 mi).
Is 45304 a PO Box ZIP code?
45304 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “45304 ZIP Code — Arcanum, Ohio (Darke County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45304
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/45304.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.