38581
ZIP 38581 is Rock Island, Tennessee, mostly in Warren County; area code 931; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Warren +2 more
- Metro area
- McMinnville, TN
- Population
- 4,079
- Coordinates
- 35.7410, -85.6208
Weather right now
Asking the National Weather Service…
Where 38581 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 38581 into a pocket calculator and turn it upside down: IBSBE — not quite a word, sorry.
- ➕ As a number, 38,581 = 41 × 941. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001011010110101 - 🏠 Its numerical neighbours: 38580 (Rickman, TN, 41 mi away) and 38582 (Silver Point, TN, 26 mi away).
- 🔄 Backwards, 38581 becomes 18583, which is not a ZIP code at all.
- 👥 17 other ZIP codes are made of exactly the same digits (18853, 35188, 38851, 53188, 53818, 58318, …). The farthest-flung twin is 83815 in Coeur d'Alene, ID, 1,791 miles away.
- 🧭 Farther south than 70% of all ZIP codes, and farther east than 55%.
- 🎯761 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 38581 and you would come out at 35.74°S, 94.38°E — 1,257 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 35m of daylight. Shortest: 9h 44m.
- 📏 At 98.0 square miles of land, 38581 is bigger than 77% of ZIP codes — room for about 74 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 4,079This ZIP4,079 |
|---|---|
| Households | 1,784This ZIP1,784 |
| Housing units | 2,018This ZIP2,018 |
| Median age | 53.1This ZIP53.1Tennessee38.9US 38.9 |
| Median household income | $55,985This ZIP$55,985Tennessee$69,595US $80,734 |
| Median home value | $182,500This ZIP$182,500Tennessee$286,700US $332,700 |
| Median gross rent | $928This ZIP$928Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 15.0%This ZIP15.0% |
| Mean commute | 33.5 minThis ZIP33.5 min |
| Population density | 41.6 / sq miThis ZIP41.6 / sq mi |
Business and tax activity
| Business establishments | 36This ZIP36 |
|---|---|
| Employees | 211This ZIP211 |
| Annual payroll | $9,037,000This ZIP$9,037,000 |
| Tax returns filed | 1,910This ZIP1,910 |
| Total adjusted gross income | $113,491,000This ZIP$113,491,000 |
Land area
| Land area | 97.97 sq miThis ZIP97.97 sq mi |
|---|---|
| Water area | 1.05 sq miThis ZIP1.05 sq mi |
Counties 38581 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Warren County | 53.2% |
| Van Buren County | 45.4% |
| DeKalb County | 1.4% |
ZIP codes near 38581
| ZIP | City | Distance |
|---|---|---|
38550 | Campaign, TN | 2.1 mi |
38579 | Quebeck, TN | 7.7 mi |
38559 | Doyle, TN | 7.9 mi |
38587 | Walling, TN | 8.6 mi |
37111 | Mcminnville, TN | 9.3 mi |
37110 | Mcminnville, TN | 9.5 mi |
38585 | Spencer, TN | 12.1 mi |
37378 | Smartt, TN | 14.0 mi |
37166 | Smithville, TN | 15.4 mi |
38583 | Sparta, TN | 18.1 mi |
Find every ZIP code within 10 miles of 38581 →
Questions about this ZIP code
Where is ZIP code 38581?
38581 is in Rock Island, Tennessee, in Warren County, part of the McMinnville, TN micropolitan area. Its published point location is 35.7410, -85.6208.
What county is 38581 in?
38581 spans 3 counties: Warren County, Van Buren County and DeKalb County. Most of it falls in Warren 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 38581?
Rock Island uses area code 931, from NANPA's telephone records.
What time zone is 38581 in?
38581 uses America/Chicago.
How many people live in 38581?
About 4,079 people live in ZIP code 38581, in 1,784 households, at 41.6 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 38581?
$55,985 a year, against $69,595 across Tennessee.
What ZIP codes are near 38581?
The closest are 38550 (2.1 mi), 38579 (7.7 mi), 38559 (7.9 mi), 38587 (8.6 mi) and 37111 (9.3 mi).
Is 38581 a PO Box ZIP code?
38581 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “38581 ZIP Code — Rock Island, Tennessee (Warren County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/38581
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/38581.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.