37729
ZIP 37729 is Duff, Tennessee, in Campbell County; area code 423; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Campbell
- Metro area
- Knoxville, TN
- Population
- 1,279
- Coordinates
- 36.5141, -84.0328
Weather right now
Asking the National Weather Service…
Where 37729 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 37729 into a pocket calculator and turn it upside down: GZLLE — not quite a word, sorry.
- ➕ As a number, 37,729 = 29 × 1301. Its digits add up to 28, a total 1,520 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001001101100001 - 🏠 Its numerical neighbours: 37727 (Del Rio, TN, 71 mi away) and 37730 (Eagan, TN, 5 mi away).
- 🔄 Backwards, 37729 becomes 92773, which is not a ZIP code at all.
- 👥 20 other ZIP codes are made of exactly the same digits (27379, 27937, 27973, 29377, 32779, 37927, …). The farthest-flung twin is 97327 in Brownsville, OR, 2,096 miles away.
- 🧭 Farther south than 66% of all ZIP codes, and farther east than 60%.
- 🎯822 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37729 and you would come out at 36.51°S, 95.97°E — 1,177 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 39m of daylight. Shortest: 9h 40m.
- 📏 At 49.3 square miles of land, 37729 is bigger than 59% of ZIP codes — room for about 37 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,279This ZIP1,279 |
|---|---|
| Households | 477This ZIP477 |
| Housing units | 681This ZIP681 |
| Median age | 45.5This ZIP45.5Tennessee38.9US 38.9 |
| Median household income | $42,772This ZIP$42,772Tennessee$69,595US $80,734 |
| Median home value | $112,300This ZIP$112,300Tennessee$286,700US $332,700 |
| Bachelor's degree or higher | 31.8%This ZIP31.8% |
| Mean commute | 31.5 minThis ZIP31.5 min |
| Population density | 26.0 / sq miThis ZIP26.0 / sq mi |
Business and tax activity
| Tax returns filed | 410This ZIP410 |
|---|---|
| Total adjusted gross income | $16,767,000This ZIP$16,767,000 |
Land area
| Land area | 49.25 sq miThis ZIP49.25 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 37729
| ZIP | City | Distance |
|---|---|---|
37715 | Clairfield, TN | 4.9 mi |
37730 | Eagan, TN | 5.0 mi |
37762 | Jellico, TN | 6.4 mi |
40940 | Frakes, KY | 8.0 mi |
37766 | La Follette, TN | 8.3 mi |
37819 | Newcomb, TN | 10.3 mi |
37870 | Speedwell, TN | 11.6 mi |
40763 | Siler, KY | 13.5 mi |
37851 | Pruden, TN | 13.8 mi |
40730 | Emlyn, KY | 14.4 mi |
Find every ZIP code within 10 miles of 37729 →
Questions about this ZIP code
Where is ZIP code 37729?
37729 is in Duff, Tennessee, in Campbell County, part of the Knoxville, TN metropolitan area. Its published point location is 36.5141, -84.0328.
What county is 37729 in?
37729 lies in Campbell County.
What area code is 37729?
Duff uses area code 423, from NANPA's telephone records.
What time zone is 37729 in?
37729 uses America/New_York.
How many people live in 37729?
About 1,279 people live in ZIP code 37729, in 477 households, at 26.0 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 37729?
$42,772 a year, against $69,595 across Tennessee.
What ZIP codes are near 37729?
The closest are 37715 (4.9 mi), 37730 (5 mi), 37762 (6.4 mi), 40940 (8 mi) and 37766 (8.3 mi).
Is 37729 a PO Box ZIP code?
37729 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37729 ZIP Code — Duff, Tennessee (Campbell County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37729
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37729.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.