ZIP code · Ironton · Ohio · United States
ZIP code 45638 — Ironton
ZIP code 45638 serves Ironton, Ohio.
- Postal code
- 45638Single source Value from one source, not cross-checked.
- City
- Ironton
- County
- Lawrence FIPS 39087
- State
- Ohio
- Country
- United States
- Coordinates
- 38.5294, -82.6654 — precision precise (locality)
View on OpenStreetMap - Population
- 19,921 (ZCTA, ACS 5-year)
- Population density
- 259 / sq mi
- Land area
- 76.9 sq mi (199.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $49,544
- Per-capita income
- $26,649
- Median age
- 39.9
- Households
- 7,798
- Housing units
- 9,039
- Median home value
- $118,500
- Median gross rent
- $782 / month
- Congressional district
- OH-2 (119th Congress)
- USDA hardiness zone
- 7a (0 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)
Tools: compare 45638 with another ZIP · ZIPs within 25 miles · distance from 45638
Map of ZIP code 45638
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 44 | 54 | 67 | 75 | 83 | 85 | 84 | 78 | 67 | 54 | 44 |
| Avg low °F | 23 | 24 | 32 | 41 | 51 | 61 | 65 | 63 | 56 | 43 | 32 | 27 |
| Precip in | 3.5 | 3.7 | 4.4 | 3.9 | 4.8 | 4.5 | 4.6 | 3.9 | 3.3 | 3.0 | 3.0 | 4.2 |
NOAA 1991–2020 climate normals from the nearest station: ASHLAND (6.0 mi) · NOAA NCEI
Places in ZIP 45638
- 16 schools
- 1 colleges & universities
- 2 hospitals & clinics
- 2 pharmacies
- 4 supermarkets
- 23 restaurants & cafés
- 8 parks
- 4 playgrounds
- 1 gyms & sports centres
- 3 libraries
- 1 post offices
- 43 places of worship
- 1 banks
- 10 gas stations
- 2 police & fire 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