37888
ZIP 37888 is Washburn, Tennessee, mostly in Grainger County; area code 865; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Grainger +1 more
- Metro area
- Knoxville, TN
- Population
- 3,432
- Coordinates
- 36.3299, -83.5791
Weather right now
Asking the National Weather Service…
Where 37888 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 37888 into a pocket calculator and turn it upside down: BBBLE — not quite a word, sorry.
- ➕ As a number, 37,888 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 37. Its digits add up to 34, a total 322 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001010000000000 - 🏠 Its numerical neighbours: 37887 (Wartburg, TN, 60 mi away) and 37890 (White Pine, TN, 23 mi away).
- 🔄 Backwards, 37888 becomes 88873, which is not a ZIP code at all.
- 👥 3 other ZIP codes are made of exactly the same digits (38878, 78838, 78883). The farthest-flung twin is 78838 in Concan, TX, 1,045 miles away.
- 🧭 Farther south than 67% of all ZIP codes, and farther east than 61%.
- 🎯850 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 37888 and you would come out at 36.33°S, 96.42°E — 1,150 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 38m of daylight. Shortest: 9h 41m.
- 📏 At 55.7 square miles of land, 37888 is bigger than 62% of ZIP codes — room for about 42 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,432This ZIP3,432 |
|---|---|
| Households | 1,261This ZIP1,261 |
| Housing units | 1,532This ZIP1,532 |
| Median age | 48.6This ZIP48.6Tennessee38.9US 38.9 |
| Median household income | $45,669This ZIP$45,669Tennessee$69,595US $80,734 |
| Median home value | $137,400This ZIP$137,400Tennessee$286,700US $332,700 |
| Median gross rent | $907This ZIP$907Tennessee$1,189US $1,413 |
| Bachelor's degree or higher | 14.1%This ZIP14.1% |
| Mean commute | 41.6 minThis ZIP41.6 min |
| Population density | 61.6 / sq miThis ZIP61.6 / sq mi |
Business and tax activity
| Business establishments | 19This ZIP19 |
|---|---|
| Employees | 50This ZIP50 |
| Annual payroll | $2,744,000This ZIP$2,744,000 |
| Tax returns filed | 1,070This ZIP1,070 |
| Total adjusted gross income | $60,066,000This ZIP$60,066,000 |
Land area
| Land area | 55.74 sq miThis ZIP55.74 sq mi |
|---|---|
| Water area | 1.35 sq miThis ZIP1.35 sq mi |
Counties 37888 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Grainger County | 90.8% |
| Union County | 9.2% |
ZIP codes near 37888
| ZIP | City | Distance |
|---|---|---|
37773 | Lone Mountain, TN | 4.2 mi |
37861 | Rutledge, TN | 7.2 mi |
37825 | New Tazewell, TN | 8.1 mi |
37824 | New Tazewell, TN | 8.3 mi |
37848 | Powder Springs, TN | 8.6 mi |
37879 | Tazewell, TN | 10.6 mi |
37709 | Blaine, TN | 12.3 mi |
37779 | Luttrell, TN | 12.9 mi |
37881 | Thorn Hill, TN | 12.9 mi |
37807 | Maynardville, TN | 14.6 mi |
Find every ZIP code within 10 miles of 37888 →
Questions about this ZIP code
Where is ZIP code 37888?
37888 is in Washburn, Tennessee, in Grainger County, part of the Knoxville, TN metropolitan area. Its published point location is 36.3299, -83.5791.
What county is 37888 in?
37888 spans 2 counties: Grainger County and Union County. Most of it falls in Grainger 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 37888?
Washburn uses area code 865, from NANPA's telephone records.
What time zone is 37888 in?
37888 uses America/New_York.
How many people live in 37888?
About 3,432 people live in ZIP code 37888, in 1,261 households, at 61.6 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 37888?
$45,669 a year, against $69,595 across Tennessee.
What ZIP codes are near 37888?
The closest are 37773 (4.2 mi), 37861 (7.2 mi), 37825 (8.1 mi), 37824 (8.3 mi) and 37848 (8.6 mi).
Is 37888 a PO Box ZIP code?
37888 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “37888 ZIP Code — Washburn, Tennessee (Grainger County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37888
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/37888.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.