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Where 37870 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 37870 into a pocket calculator and turn it upside down: OLBLE — not quite a word, sorry.
- ➕ As a number, 37,870 = 2 × 5 × 7 × 541. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001001111101110 - 🏠 Its numerical neighbours: 37869 (Sneedville, TN, 33 mi away) and 37871 (Strawberry Plains, TN, 30 mi away).
- 🔄 Backwards, 37870 becomes 07873, which is not a ZIP code at all.
- 👥 25 other ZIP codes are made of exactly the same digits (07738, 07837, 37078, 37087, 37708, 37807, …). The farthest-flung twin is 83707 in Boise, ID, 1,770 miles away.
- 🧭 Farther south than 67% of all ZIP codes, and farther east than 60%.
- 🎯833 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37870 and you would come out at 36.46°S, 96.17°E — 1,165 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 39m of daylight. Shortest: 9h 40m.
- 📏 At 83.0 square miles of land, 37870 is bigger than 73% of ZIP codes — room for about 63 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 4,385This ZIP4,385 |
|---|---|
| Households | 1,653This ZIP1,653 |
| Housing units | 2,269This ZIP2,269 |
| Median age | 46.6This ZIP46.6Tennessee38.9US 38.9 |
| Median household income | $55,516This ZIP$55,516Tennessee$69,595US $80,734 |
| Median home value | $126,400This ZIP$126,400Tennessee$286,700US $332,700 |
| Median gross rent | $933This ZIP$933Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 11.0%This ZIP11.0% |
| Mean commute | 39.9 minThis ZIP39.9 min |
| Population density | 52.8 / sq miThis ZIP52.8 / sq mi |
Business and tax activity
| Business establishments | 34This ZIP34 |
|---|---|
| Employees | 312This ZIP312 |
| Annual payroll | $10,291,000This ZIP$10,291,000 |
| Tax returns filed | 1,690This ZIP1,690 |
| Total adjusted gross income | $90,864,000This ZIP$90,864,000 |
Land area
| Land area | 82.98 sq miThis ZIP82.98 sq mi |
|---|---|
| Water area | 3.46 sq miThis ZIP3.46 sq mi |
Counties 37870 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Claiborne County | 75.3% |
| Campbell County | 14.5% |
| Union County | 10.2% |
ZIP codes near 37870
| ZIP | City | Distance |
|---|---|---|
37851 | Pruden, TN | 7.5 mi |
37866 | Sharps Chapel, TN | 8.0 mi |
37724 | Cumberland Gap, TN | 9.1 mi |
37825 | New Tazewell, TN | 9.2 mi |
37715 | Clairfield, TN | 9.3 mi |
37730 | Eagan, TN | 10.6 mi |
37707 | Arthur, TN | 10.8 mi |
40940 | Frakes, KY | 11.3 mi |
37729 | Duff, TN | 11.6 mi |
40965 | Middlesboro, KY | 12.2 mi |
Find every ZIP code within 10 miles of 37870 →
Questions about this ZIP code
Where is ZIP code 37870?
37870 is in Speedwell, Tennessee, in Claiborne County. Its published point location is 36.4629, -83.8338.
What county is 37870 in?
37870 spans 3 counties: Claiborne County, Campbell County and Union County. Most of it falls in Claiborne 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 time zone is 37870 in?
37870 uses America/New_York.
How many people live in 37870?
About 4,385 people live in ZIP code 37870, in 1,653 households, at 52.8 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 37870?
$55,516 a year, against $69,595 across Tennessee.
What ZIP codes are near 37870?
The closest are 37851 (7.5 mi), 37866 (8 mi), 37724 (9.1 mi), 37825 (9.2 mi) and 37715 (9.3 mi).
Is 37870 a PO Box ZIP code?
37870 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37870 ZIP Code — Speedwell, Tennessee (Claiborne County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37870
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37870.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.