37308
ZIP 37308 is Birchwood, Tennessee, mostly in Hamilton County; area code 423; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Hamilton +1 more
- Metro area
- Chattanooga, TN-GA
- Population
- 3,188
- Coordinates
- 35.3426, -84.9938
Weather right now
Asking the National Weather Service…
Where 37308 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 37308 into a pocket calculator and turn it upside down: BOELE — not quite a word, sorry.
- ➕ As a number, 37,308 = 2 × 2 × 3 × 3109. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001000110111100 - 🏠 Its numerical neighbours: 37307 (Benton, TN, 24 mi away) and 37309 (Calhoun, TN, 14 mi away).
- 🔄 Backwards, 37308 becomes 80373, which is not a ZIP code at all.
- 👥 24 other ZIP codes are made of exactly the same digits (03837, 03873, 07833, 08733, 30378, 30738, …). The farthest-flung twin is 83703 in Boise, ID, 1,750 miles away.
- 🧭 Farther south than 72% of all ZIP codes, and farther east than 57%.
- 🎯805 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37308 and you would come out at 35.34°S, 95.01°E — 1,220 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 33m of daylight. Shortest: 9h 46m.
- 📏 At 37.0 square miles of land, 37308 is bigger than 51% of ZIP codes — room for about 28 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,188This ZIP3,188 |
|---|---|
| Households | 1,189This ZIP1,189 |
| Housing units | 1,363This ZIP1,363 |
| Median age | 38.2This ZIP38.2Tennessee38.9US 38.9 |
| Median household income | $80,394This ZIP$80,394Tennessee$69,595US $80,734 |
| Median home value | $253,100This ZIP$253,100Tennessee$286,700US $332,700 |
| Median gross rent | $807This ZIP$807Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 16.9%This ZIP16.9% |
| Mean commute | 40.5 minThis ZIP40.5 min |
| Population density | 86.2 / sq miThis ZIP86.2 / sq mi |
Business and tax activity
| Business establishments | 13This ZIP13 |
|---|---|
| Employees | 45This ZIP45 |
| Annual payroll | $2,534,000This ZIP$2,534,000 |
| Tax returns filed | 1,290This ZIP1,290 |
| Total adjusted gross income | $87,110,000This ZIP$87,110,000 |
Land area
| Land area | 37.00 sq miThis ZIP37.00 sq mi |
|---|---|
| Water area | 5.70 sq miThis ZIP5.70 sq mi |
Counties 37308 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 | 63.3% |
| Meigs County | 36.7% |
ZIP codes near 37308
| ZIP | City | Distance |
|---|---|---|
37336 | Georgetown, TN | 4.2 mi |
37373 | Sale Creek, TN | 7.2 mi |
37304 | Bakewell, TN | 8.1 mi |
37341 | Harrison, TN | 9.6 mi |
37312 | Cleveland, TN | 10.5 mi |
37321 | Dayton, TN | 11.0 mi |
37379 | Soddy Daisy, TN | 12.0 mi |
37338 | Graysville, TN | 13.6 mi |
37320 | Cleveland, TN | 13.9 mi |
37364 | Cleveland, TN | 13.9 mi |
Find every ZIP code within 10 miles of 37308 →
Questions about this ZIP code
Where is ZIP code 37308?
37308 is in Birchwood, Tennessee, in Hamilton County, part of the Chattanooga, TN-GA metropolitan area. Its published point location is 35.3426, -84.9938.
What county is 37308 in?
37308 spans 2 counties: Hamilton County and Meigs 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 37308?
Birchwood uses area code 423, from NANPA's telephone records.
What time zone is 37308 in?
37308 uses America/New_York.
How many people live in 37308?
About 3,188 people live in ZIP code 37308, in 1,189 households, at 86.2 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 37308?
$80,394 a year, against $69,595 across Tennessee.
What ZIP codes are near 37308?
The closest are 37336 (4.2 mi), 37373 (7.2 mi), 37304 (8.1 mi), 37341 (9.6 mi) and 37312 (10.5 mi).
Is 37308 a PO Box ZIP code?
37308 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37308 ZIP Code — Birchwood, Tennessee (Hamilton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37308
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37308.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.