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Where 37821 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 37821 into a pocket calculator and turn it upside down: IZBLE — not quite a word, sorry.
- ➕ As a number, 37,821 = 3 × 7 × 1801. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001001110111101 - 🏠 Its numerical neighbours: 37820 (New Market, TN, 22 mi away) and 37822 (Newport, TN, 1 mi away).
- 🔄 Backwards, 37821 becomes 12873 — and that is a real ZIP code: Shushan, NY, 721 miles away.
- 👥 56 other ZIP codes are made of exactly the same digits (12738, 12783, 12837, 12873, 13782, 13827, …). The farthest-flung twin is 83712 in Boise, ID, 1,811 miles away.
- 🧭 Farther south than 69% of all ZIP codes, and farther east than 62%.
- 🎯879 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37821 and you would come out at 35.98°S, 96.80°E — 1,125 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 36m of daylight. Shortest: 9h 43m.
- 📏 At 129.8 square miles of land, 37821 is bigger than 84% of ZIP codes — room for about 99 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 22,909This ZIP22,909 |
|---|---|
| Households | 9,632This ZIP9,632 |
| Housing units | 10,896This ZIP10,896 |
| Median age | 43.7This ZIP43.7Tennessee38.9US 38.9 |
| Median household income | $44,161This ZIP$44,161Tennessee$69,595US $80,734 |
| Median home value | $141,900This ZIP$141,900Tennessee$286,700US $332,700 |
| Median gross rent | $805This ZIP$805Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 8.5%This ZIP8.5% |
| Mean commute | 30.1 minThis ZIP30.1 min |
| Population density | 176.5 / sq miThis ZIP176.5 / sq mi |
Business and tax activity
| Business establishments | 372This ZIP372 |
|---|---|
| Employees | 5,301This ZIP5,301 |
| Annual payroll | $225,418,000This ZIP$225,418,000 |
| Tax returns filed | 9,980This ZIP9,980 |
| Total adjusted gross income | $462,138,000This ZIP$462,138,000 |
Land area
| Land area | 129.78 sq miThis ZIP129.78 sq mi |
|---|---|
| Water area | 5.55 sq miThis ZIP5.55 sq mi |
Counties 37821 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Cocke County | 99.8% |
| Jefferson County | 0.2% |
Other place names in 37821
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 37821
| ZIP | City | Distance |
|---|---|---|
37822 | Newport, TN | 0.7 mi |
37713 | Bybee, TN | 8.1 mi |
37843 | Parrottsville, TN | 8.6 mi |
37890 | White Pine, TN | 9.1 mi |
37722 | Cosby, TN | 11.1 mi |
37725 | Dandridge, TN | 11.2 mi |
37727 | Del Rio, TN | 11.5 mi |
37753 | Hartford, TN | 11.9 mi |
37813 | Morristown, TN | 14.2 mi |
37810 | Mohawk, TN | 14.9 mi |
Find every ZIP code within 10 miles of 37821 →
Questions about this ZIP code
Where is ZIP code 37821?
37821 is in Newport, Tennessee, in Cocke County, part of the Newport, TN micropolitan area. Its published point location is 35.9751, -83.1955.
What county is 37821 in?
37821 spans 2 counties: Cocke County and Jefferson County. Most of it falls in Cocke 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 37821?
Newport uses area code 423, from NANPA's telephone records.
What time zone is 37821 in?
37821 uses America/New_York.
How many people live in 37821?
About 22,909 people live in ZIP code 37821, in 9,632 households, at 176.5 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 37821?
$44,161 a year, against $69,595 across Tennessee.
What ZIP codes are near 37821?
The closest are 37822 (0.7 mi), 37713 (8.1 mi), 37843 (8.6 mi), 37890 (9.1 mi) and 37722 (11.1 mi).
Is 37821 a PO Box ZIP code?
37821 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37821 ZIP Code — Newport, Tennessee (Cocke County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37821
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37821.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.