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Where 37151 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 37151 into a pocket calculator and turn it upside down: ISILE — not quite a word, sorry.
- ➕ As a number, 37,151 = 97 × 383. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001000100011111 - 🏠 Its numerical neighbours: 37150 (Red Boiling Springs, TN, 21 mi away) and 37152 (Ridgetop, TN, 41 mi away).
- 🔄 Backwards, 37151 becomes 15173, which is not a ZIP code at all.
- 👥 23 other ZIP codes are made of exactly the same digits (11357, 11375, 11735, 11753, 13157, 13751, …). The farthest-flung twin is 57311 in Alexandria, SD, 800 miles away.
- 🧭 Farther south than 67% of all ZIP codes, and farther east than 54%.
- 🎯723 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37151 and you would come out at 36.31°S, 93.96°E — 1,285 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 38m of daylight. Shortest: 9h 41m.
- 📏 At 17.0 square miles of land, 37151 is bigger than 35% of ZIP codes — room for about 13 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 457This ZIP457 |
|---|---|
| Households | 173This ZIP173 |
| Housing units | 196This ZIP196 |
| Median age | 47.8This ZIP47.8Tennessee38.9US 38.9 |
| Median household income | $102,168This ZIP$102,168Tennessee$69,595US $80,734 |
| Median home value | $327,500This ZIP$327,500Tennessee$286,700US $332,700 |
| Bachelor's degree or higher | 31.6%This ZIP31.6% |
| Mean commute | 33.1 minThis ZIP33.1 min |
| Population density | 26.9 / sq miThis ZIP26.9 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 19This ZIP19 |
| Annual payroll | $1,426,000This ZIP$1,426,000 |
| Tax returns filed | 240This ZIP240 |
| Total adjusted gross income | $16,218,000This ZIP$16,218,000 |
Land area
| Land area | 16.99 sq miThis ZIP16.99 sq mi |
|---|---|
| Water area | 0.74 sq miThis ZIP0.74 sq mi |
ZIP codes near 37151
| ZIP | City | Distance |
|---|---|---|
37030 | Carthage, TN | 6.2 mi |
38563 | Gordonsville, TN | 7.0 mi |
37057 | Dixon Springs, TN | 7.6 mi |
37145 | Pleasant Shade, TN | 8.6 mi |
37074 | Hartsville, TN | 10.1 mi |
38547 | Brush Creek, TN | 10.8 mi |
38560 | Elmwood, TN | 12.1 mi |
37087 | Lebanon, TN | 13.0 mi |
38567 | Hickman, TN | 13.8 mi |
38552 | Chestnut Mound, TN | 14.3 mi |
Find every ZIP code within 10 miles of 37151 →
Questions about this ZIP code
Where is ZIP code 37151?
37151 is in Riddleton, Tennessee, in Smith County, part of the Nashville-Davidson--Murfreesboro--Franklin, TN metropolitan area. Its published point location is 36.3092, -86.0430.
What county is 37151 in?
37151 lies in Smith County.
What area code is 37151?
Riddleton uses area codes 615 and 629, from NANPA's telephone records.
What time zone is 37151 in?
37151 uses America/Chicago.
How many people live in 37151?
About 457 people live in ZIP code 37151, in 173 households, at 26.9 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 37151?
$102,168 a year, against $69,595 across Tennessee.
What ZIP codes are near 37151?
The closest are 37030 (6.2 mi), 38563 (7 mi), 37057 (7.6 mi), 37145 (8.6 mi) and 37074 (10.1 mi).
Is 37151 a PO Box ZIP code?
37151 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37151 ZIP Code — Riddleton, Tennessee (Smith County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37151
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37151.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.