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Where 38401 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 38401 into a pocket calculator and turn it upside down: IOhBE — not quite a word, sorry.
- ➕ As a number, 38,401 = 11 × 3491. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001011000000001 - 🏠 Its numerical neighbours: 38393 (Chewalla, TN, 101 mi away) and 38402 (Columbia, TN, 1 mi away).
- 🔄 Backwards, 38401 becomes 10483, which is not a ZIP code at all.
- 👥 54 other ZIP codes are made of exactly the same digits (01438, 01834, 01843, 03814, 03841, 08314, …). The farthest-flung twin is 83401 in Idaho Falls, ID, 1,425 miles away.
- 🧭 Farther south than 71% of all ZIP codes, and farther east than 51%.
- 🎯694 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 38401 and you would come out at 35.63°S, 92.98°E — 1,335 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 34m of daylight. Shortest: 9h 45m.
- 📏 At 296.6 square miles of land, 38401 is bigger than 95% of ZIP codes — room for about 225 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 67,482This ZIP67,482 |
|---|---|
| Households | 26,524This ZIP26,524 |
| Housing units | 29,161This ZIP29,161 |
| Median age | 38.5This ZIP38.5Tennessee38.9US 38.9 |
| Median household income | $68,475This ZIP$68,475Tennessee$69,595US $80,734 |
| Median home value | $339,400This ZIP$339,400Tennessee$286,700US $332,700 |
| Median gross rent | $1,187This ZIP$1,187Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 26.2%This ZIP26.2% |
| Mean commute | 28.6 minThis ZIP28.6 min |
| Population density | 227.5 / sq miThis ZIP227.5 / sq mi |
Business and tax activity
| Business establishments | 1,412This ZIP1,412 |
|---|---|
| Employees | 19,823This ZIP19,823 |
| Annual payroll | $1,000,021,000This ZIP$1,000,021,000 |
| Tax returns filed | 30,340This ZIP30,340 |
| Total adjusted gross income | $2,221,795,000This ZIP$2,221,795,000 |
Land area
| Land area | 296.65 sq miThis ZIP296.65 sq mi |
|---|---|
| Water area | 2.17 sq miThis ZIP2.17 sq mi |
Counties 38401 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Maury County | 96.0% |
| Williamson County | 2.1% |
| Marshall County | 1.8% |
Other place names in 38401
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 38401
| ZIP | City | Distance |
|---|---|---|
38402 | Columbia, TN | 1.2 mi |
37174 | Spring Hill, TN | 9.3 mi |
38451 | Culleoka, TN | 11.8 mi |
38482 | Santa Fe, TN | 12.0 mi |
38487 | Williamsport, TN | 13.4 mi |
38474 | Mount Pleasant, TN | 14.1 mi |
37179 | Thompsons Station, TN | 14.1 mi |
37091 | Lewisburg, TN | 17.2 mi |
38472 | Lynnville, TN | 17.4 mi |
38461 | Hampshire, TN | 18.0 mi |
Find every ZIP code within 10 miles of 38401 →
Questions about this ZIP code
Where is ZIP code 38401?
38401 is in Columbia, Tennessee, in Maury County, part of the Nashville-Davidson--Murfreesboro--Franklin, TN metropolitan area. Its published point location is 35.6292, -87.0215.
What county is 38401 in?
38401 spans 3 counties: Maury County, Williamson County and Marshall County. Most of it falls in Maury 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 38401?
Columbia uses area code 931, from NANPA's telephone records.
What time zone is 38401 in?
38401 uses America/Chicago.
How many people live in 38401?
About 67,482 people live in ZIP code 38401, in 26,524 households, at 227.5 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 38401?
$68,475 a year, against $69,595 across Tennessee.
What ZIP codes are near 38401?
The closest are 38402 (1.2 mi), 37174 (9.3 mi), 38451 (11.8 mi), 38482 (12 mi) and 38487 (13.4 mi).
Is 38401 a PO Box ZIP code?
38401 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “38401 ZIP Code — Columbia, Tennessee (Maury County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/38401
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/38401.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.