37604
ZIP 37604 is in Johnson City, Tennessee, mostly in Washington County; area code 423; Eastern time. Johnson City has 6 ZIP codes; the others are 37601, 37602, 37605, 37614 and 37615.
- Type
- Standard
- Time zone
- America/New_York
- County
- Washington +1 more
- Metro area
- Johnson City, TN
- Population
- 39,097
- Coordinates
- 36.2992, -82.3830
Weather right now
Asking the National Weather Service…
Where 37604 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 37604 into a pocket calculator and turn it upside down: hOgLE — not quite a word, sorry.
- ➕ As a number, 37,604 = 2 × 2 × 7 × 17 × 79. Its digits add up to 20, a total 2,586 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001001011100100 - 🏠 Its numerical neighbours: 37602 (Johnson City, TN, 7 mi away) and 37605 (Johnson City, TN, 1 mi away).
- 🔄 Backwards, 37604 becomes 40673, which is not a ZIP code at all.
- 👥 63 other ZIP codes are made of exactly the same digits (03467, 03746, 04637, 04673, 04736, 04763, …). The farthest-flung twin is 04736 in Caribou, ME, 1,040 miles away.
- 🧭 Farther south than 67% of all ZIP codes, and farther east than 65%.
- 🎯913 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37604 and you would come out at 36.30°S, 97.62°E — 1,084 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 38m of daylight. Shortest: 9h 41m.
- 📏 At 33.0 square miles of land, 37604 is bigger than 48% of ZIP codes — room for about 25 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 39,097This ZIP39,097 |
|---|---|
| Households | 17,621This ZIP17,621 |
| Housing units | 19,596This ZIP19,596 |
| Median age | 35.4This ZIP35.4Tennessee38.9US 38.9 |
| Median household income | $52,345This ZIP$52,345Tennessee$69,595US $80,734 |
| Median home value | $259,600This ZIP$259,600Tennessee$286,700US $332,700 |
| Median gross rent | $1,055This ZIP$1,055Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 40.8%This ZIP40.8% |
| Mean commute | 18.2 minThis ZIP18.2 min |
| Population density | 1,183.9 / sq miThis ZIP1,183.9 / sq mi |
Business and tax activity
| Business establishments | 1,161This ZIP1,161 |
|---|---|
| Employees | 23,248This ZIP23,248 |
| Annual payroll | $1,262,628,000This ZIP$1,262,628,000 |
| Tax returns filed | 16,840This ZIP16,840 |
| Total adjusted gross income | $1,218,376,000This ZIP$1,218,376,000 |
Land area
| Land area | 33.02 sq miThis ZIP33.02 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Counties 37604 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Washington County | 94.3% |
| Carter County | 5.7% |
Other place names in 37604
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 37604
| ZIP | City | Distance |
|---|---|---|
37614 | Johnson City, TN | 0.9 mi |
37684 | Mountain Home, TN | 1.0 mi |
37605 | Johnson City, TN | 1.1 mi |
37601 | Johnson City, TN | 4.5 mi |
37682 | Milligan College, TN | 5.1 mi |
37602 | Johnson City, TN | 6.9 mi |
37659 | Jonesborough, TN | 7.0 mi |
37615 | Johnson City, TN | 7.9 mi |
37694 | Watauga, TN | 8.2 mi |
37692 | Unicoi, TN | 9.1 mi |
Find every ZIP code within 10 miles of 37604 →
Questions about this ZIP code
Where is ZIP code 37604?
37604 is in Johnson City, Tennessee, in Washington County, part of the Johnson City, TN metropolitan area. Its published point location is 36.2992, -82.3830.
What county is 37604 in?
37604 spans 2 counties: Washington County and Carter County. Most of it falls in Washington 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 37604?
Johnson City uses area code 423, from NANPA's telephone records.
What time zone is 37604 in?
37604 uses America/New_York.
How many people live in 37604?
About 39,097 people live in ZIP code 37604, in 17,621 households, at 1,183.9 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 37604?
$52,345 a year, against $69,595 across Tennessee.
What ZIP codes are near 37604?
The closest are 37614 (0.9 mi), 37684 (1 mi), 37605 (1.1 mi), 37601 (4.5 mi) and 37682 (5.1 mi).
Is 37604 a PO Box ZIP code?
37604 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37604 ZIP Code — Johnson City, Tennessee (Washington County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37604
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37604.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.