ZIP code · Arcanum · Ohio · United States
ZIP code 45304 — Arcanum
ZIP code 45304 serves Arcanum, Ohio.
- Postal code
- 45304Single source Value from one source, not cross-checked.
- City
- Arcanum
- County
- Darke FIPS 39037
- State
- Ohio
- Country
- United States
- Coordinates
- 39.9888, -84.5312 — precision precise (locality)
View on OpenStreetMap - Population
- 7,624 (ZCTA, ACS 5-year)
- Population density
- 90 / sq mi
- Land area
- 85.2 sq mi (220.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $72,014
- Per-capita income
- $34,329
- Median age
- 39.4
- Households
- 3,029
- Housing units
- 3,146
- Median home value
- $190,000
- Median gross rent
- $809 / month
- Congressional district
- OH-8 (119th Congress)
- USDA hardiness zone
- 6a (-10 to -5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 937Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 45304 with another ZIP · ZIPs within 25 miles · distance from 45304
Map of ZIP code 45304
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 19°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 39 | 50 | 63 | 73 | 82 | 85 | 83 | 78 | 66 | 52 | 40 |
| Avg low °F | 19 | 21 | 30 | 40 | 52 | 61 | 64 | 61 | 53 | 42 | 33 | 25 |
| Precip in | 2.8 | 2.2 | 3.2 | 4.2 | 4.3 | 4.4 | 4.0 | 3.4 | 2.8 | 2.9 | 3.2 | 2.9 |
NOAA 1991–2020 climate normals from the nearest station: GREENVILLE WTP (10.1 mi) · NOAA NCEI
Places in ZIP 45304
- 6 schools
- 1 hospitals & clinics
- 1 restaurants & cafés
- 3 parks
- 4 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 3 post offices
- 12 places of worship
- 1 gas stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page