45638
ZIP 45638 is Ironton, Ohio, mostly in Lawrence County; area codes 740 and 220; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Lawrence +1 more
- Metro area
- Huntington-Ashland, WV-KY-OH
- Population
- 19,982
- Coordinates
- 38.5558, -82.6719
Weather right now
Asking the National Weather Service…
Where 45638 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 45638 into a pocket calculator and turn it upside down: BEgSh — not quite a word, sorry.
- ➕ As a number, 45,638 = 2 × 19 × 1201. Its digits add up to 26, a total 2,038 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011001001000110 - 🏠 Its numerical neighbours: 45636 (Haverhill, OH, 8 mi away) and 45640 (Jackson, OH, 32 mi away).
- 🔄 Backwards, 45638 becomes 83654 — and that is a real ZIP code: New Meadows, ID, 1,773 miles away.
- 👥 55 other ZIP codes are made of exactly the same digits (34685, 35468, 35486, 35648, 36458, 36548, …). The farthest-flung twin is 85364 in Yuma, AZ, 1,831 miles away.
- 🧭 Farther south than 55% of all ZIP codes, and farther east than 64%.
- 🎯855 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 45638 and you would come out at 38.56°S, 97.33°E — 1,138 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 52m of daylight. Shortest: 9h 28m.
- 📏 At 76.9 square miles of land, 45638 is bigger than 71% of ZIP codes — room for about 58 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 19,982This ZIP19,982 |
|---|---|
| Households | 7,917This ZIP7,917 |
| Housing units | 9,216This ZIP9,216 |
| Median age | 40.1This ZIP40.1Ohio39.7US 38.9 |
| Median household income | $52,728This ZIP$52,728Ohio$71,389US $80,734 |
| Median home value | $119,000This ZIP$119,000Ohio$214,800US $332,700 |
| Median gross rent | $807This ZIP$807Ohio$1,034US $1,413 |
| Bachelor's degree or higher | 16.6%This ZIP16.6% |
| Mean commute | 22.9 minThis ZIP22.9 min |
| Population density | 259.9 / sq miThis ZIP259.9 / sq mi |
Business and tax activity
| Business establishments | 334This ZIP334 |
|---|---|
| Employees | 4,584This ZIP4,584 |
| Annual payroll | $219,517,000This ZIP$219,517,000 |
| Tax returns filed | 8,460This ZIP8,460 |
| Total adjusted gross income | $469,835,000This ZIP$469,835,000 |
Land area
| Land area | 76.90 sq miThis ZIP76.90 sq mi |
|---|---|
| Water area | 1.19 sq miThis ZIP1.19 sq mi |
Counties 45638 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Lawrence County | 88.6% |
| Scioto County | 11.4% |
Other place names in 45638
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 45638
| ZIP | City | Distance |
|---|---|---|
41183 | Worthington, KY | 3.5 mi |
41169 | Russell, KY | 3.8 mi |
41139 | Flatwoods, KY | 4.7 mi |
41101 | Ashland, KY | 5.5 mi |
45659 | Pedro, OH | 7.1 mi |
45675 | Rock Camp, OH | 7.6 mi |
45645 | Kitts Hill, OH | 7.9 mi |
45636 | Haverhill, OH | 8.0 mi |
45680 | South Point, OH | 9.1 mi |
41102 | Ashland, KY | 9.4 mi |
Find every ZIP code within 10 miles of 45638 →
Questions about this ZIP code
Where is ZIP code 45638?
45638 is in Ironton, Ohio, in Lawrence County, part of the Huntington-Ashland, WV-KY-OH metropolitan area. Its published point location is 38.5558, -82.6719.
What county is 45638 in?
45638 spans 2 counties: Lawrence County and Scioto County. Most of it falls in Lawrence 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 45638?
Ironton uses area codes 740 and 220, from NANPA's telephone records.
What time zone is 45638 in?
45638 uses America/New_York.
How many people live in 45638?
About 19,982 people live in ZIP code 45638, in 7,917 households, at 259.9 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 45638?
$52,728 a year, against $71,389 across Ohio.
What ZIP codes are near 45638?
The closest are 41183 (3.5 mi), 41169 (3.8 mi), 41139 (4.7 mi), 41101 (5.5 mi) and 45659 (7.1 mi).
Is 45638 a PO Box ZIP code?
45638 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “45638 ZIP Code — Ironton, Ohio (Lawrence County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45638
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/45638.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.