37931
ZIP 37931 is in Knoxville, Tennessee, mostly in Knox County; area code 865; Eastern time. Knoxville has 31 ZIP codes in all.
- Type
- Standard
- Time zone
- America/New_York
- County
- Knox +1 more
- Metro area
- Knoxville, TN
- Population
- 31,842
- Coordinates
- 35.9763, -84.1263
Weather right now
Asking the National Weather Service…
Where 37931 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 37931 into a pocket calculator and turn it upside down: IEGLE — not quite a word, sorry.
- ➕ As a number, 37,931 = 83 × 457. Its digits add up to 23, a total 2,533 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001010000101011 - 🏠 Its numerical neighbours: 37930 (Knoxville, TN, 11 mi away) and 37932 (Knoxville, TN, 6 mi away).
- 🔄 Backwards, 37931 becomes 13973, which is not a ZIP code at all.
- 👥 24 other ZIP codes are made of exactly the same digits (13739, 17339, 17933, 19373, 19733, 31739, …). The farthest-flung twin is 97331 in Corvallis, OR, 2,125 miles away.
- 🧭 Farther south than 69% of all ZIP codes, and farther east than 59%.
- 🎯831 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37931 and you would come out at 35.98°S, 95.87°E — 1,176 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 36m of daylight. Shortest: 9h 43m.
- 📏 At 28.4 square miles of land, 37931 is bigger than 44% of ZIP codes — room for about 22 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 31,842This ZIP31,842 |
|---|---|
| Households | 12,538This ZIP12,538 |
| Housing units | 13,373This ZIP13,373 |
| Median age | 37.7This ZIP37.7Tennessee38.9US 38.9 |
| Median household income | $92,150This ZIP$92,150Tennessee$69,595US $80,734 |
| Median home value | $359,600This ZIP$359,600Tennessee$286,700US $332,700 |
| Median gross rent | $1,542This ZIP$1,542Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 47.0%This ZIP47.0% |
| Mean commute | 22.5 minThis ZIP22.5 min |
| Population density | 1,122.5 / sq miThis ZIP1,122.5 / sq mi |
Business and tax activity
| Business establishments | 409This ZIP409 |
|---|---|
| Employees | 7,075This ZIP7,075 |
| Annual payroll | $374,891,000This ZIP$374,891,000 |
| Tax returns filed | 15,550This ZIP15,550 |
| Total adjusted gross income | $1,318,390,000This ZIP$1,318,390,000 |
Land area
| Land area | 28.37 sq miThis ZIP28.37 sq mi |
|---|---|
| Water area | 0.56 sq miThis ZIP0.56 sq mi |
Counties 37931 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Knox County | 91.3% |
| Anderson County | 8.7% |
Other place names in 37931
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 37931
| ZIP | City | Distance |
|---|---|---|
37923 | Knoxville, TN | 4.2 mi |
37932 | Knoxville, TN | 5.7 mi |
37909 | Knoxville, TN | 6.1 mi |
37849 | Powell, TN | 6.9 mi |
37921 | Knoxville, TN | 7.0 mi |
37934 | Knoxville, TN | 7.5 mi |
37922 | Knoxville, TN | 8.1 mi |
37912 | Knoxville, TN | 8.2 mi |
37919 | Knoxville, TN | 8.2 mi |
37716 | Clinton, TN | 8.9 mi |
Find every ZIP code within 10 miles of 37931 →
Questions about this ZIP code
Where is ZIP code 37931?
37931 is in Knoxville, Tennessee, in Knox County, part of the Knoxville, TN metropolitan area. Its published point location is 35.9763, -84.1263.
What county is 37931 in?
37931 spans 2 counties: Knox County and Anderson County. Most of it falls in Knox 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 37931?
Knoxville uses area code 865, from NANPA's telephone records.
What time zone is 37931 in?
37931 uses America/New_York.
How many people live in 37931?
About 31,842 people live in ZIP code 37931, in 12,538 households, at 1,122.5 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 37931?
$92,150 a year, against $69,595 across Tennessee.
What ZIP codes are near 37931?
The closest are 37923 (4.2 mi), 37932 (5.7 mi), 37909 (6.1 mi), 37849 (6.9 mi) and 37921 (7 mi).
Is 37931 a PO Box ZIP code?
37931 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37931 ZIP Code — Knoxville, Tennessee (Knox County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37931
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37931.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.