37377
ZIP 37377 is Signal Mountain, Tennessee, mostly in Hamilton County; area code 423; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Hamilton +2 more
- Metro area
- Chattanooga, TN-GA
- Population
- 17,188
- Coordinates
- 35.2121, -85.3623
Weather right now
Asking the National Weather Service…
Where 37377 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 37377 into a pocket calculator and turn it upside down: LLELE — not quite a word, sorry.
- ➕ As a number, 37,377 = 3 × 3 × 4153. Its digits add up to 27, a total 1,806 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001001000000001 - 🏠 Its numerical neighbours: 37376 (Sherwood, TN, 36 mi away) and 37378 (Smartt, TN, 40 mi away).
- 🔄 Backwards, 37377 becomes 77373 — and that is a real ZIP code: Spring, TX, 683 miles away.
- 👥 7 other ZIP codes are made of exactly the same digits (33777, 37737, 37773, 73737, 73773, 77337, …). The farthest-flung twin is 73737 in Fairview, OK, 744 miles away.
- 🧭 Farther south than 73% of all ZIP codes, and farther east than 56%.
- 🎯790 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37377 and you would come out at 35.21°S, 94.64°E — 1,240 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 32m of daylight. Shortest: 9h 47m.
- 📏 At 80.5 square miles of land, 37377 is bigger than 73% of ZIP codes — room for about 61 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 17,188This ZIP17,188 |
|---|---|
| Households | 6,406This ZIP6,406 |
| Housing units | 6,762This ZIP6,762 |
| Median age | 45.0This ZIP45.0Tennessee38.9US 38.9 |
| Median household income | $119,636This ZIP$119,636Tennessee$69,595US $80,734 |
| Median home value | $529,500This ZIP$529,500Tennessee$286,700US $332,700 |
| Median gross rent | $1,614This ZIP$1,614Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 59.0%This ZIP59.0% |
| Mean commute | 27.9 minThis ZIP27.9 min |
| Population density | 213.6 / sq miThis ZIP213.6 / sq mi |
Business and tax activity
| Business establishments | 236This ZIP236 |
|---|---|
| Employees | 1,828This ZIP1,828 |
| Annual payroll | $64,897,000This ZIP$64,897,000 |
| Tax returns filed | 7,960This ZIP7,960 |
| Total adjusted gross income | $1,289,180,000This ZIP$1,289,180,000 |
Land area
| Land area | 80.46 sq miThis ZIP80.46 sq mi |
|---|---|
| Water area | 0.06 sq miThis ZIP0.06 sq mi |
Counties 37377 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Hamilton County | 50.2% |
| Sequatchie County | 46.3% |
| Marion County | 3.6% |
Other place names in 37377
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 37377
| ZIP | City | Distance |
|---|---|---|
37405 | Chattanooga, TN | 5.8 mi |
37415 | Chattanooga, TN | 7.6 mi |
37384 | Soddy Daisy, TN | 8.7 mi |
37397 | Whitwell, TN | 8.8 mi |
37343 | Hixson, TN | 9.0 mi |
37351 | Lupton City, TN | 9.6 mi |
37379 | Soddy Daisy, TN | 10.7 mi |
37419 | Chattanooga, TN | 11.6 mi |
37450 | Chattanooga, TN | 11.6 mi |
37406 | Chattanooga, TN | 11.7 mi |
Find every ZIP code within 10 miles of 37377 →
Questions about this ZIP code
Where is ZIP code 37377?
37377 is in Signal Mountain, Tennessee, in Hamilton County, part of the Chattanooga, TN-GA metropolitan area. Its published point location is 35.2121, -85.3623.
What county is 37377 in?
37377 spans 3 counties: Hamilton County, Sequatchie County and Marion County. Most of it falls in Hamilton 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 37377?
Signal Mountain uses area code 423, from NANPA's telephone records.
What time zone is 37377 in?
37377 uses America/Chicago.
How many people live in 37377?
About 17,188 people live in ZIP code 37377, in 6,406 households, at 213.6 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 37377?
$119,636 a year, against $69,595 across Tennessee.
What ZIP codes are near 37377?
The closest are 37405 (5.8 mi), 37415 (7.6 mi), 37384 (8.7 mi), 37397 (8.8 mi) and 37343 (9 mi).
Is 37377 a PO Box ZIP code?
37377 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37377 ZIP Code — Signal Mountain, Tennessee (Hamilton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37377
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37377.json Underlying data is public domain or openly licensed — sources, vintages and licences.