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zipcodes.pro — ZIP/37657

37657

ZIP 37657 is Flag Pond, Tennessee, in Unicoi County; area code 423; Eastern time.

Type
Standard
Time zone
America/New_York
County
Unicoi
Metro area
Johnson City, TN
Population
1,060
Coordinates
36.0172, -82.5605
☼ Live from 37657 — Flag Pond, TN

Weather right now

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Local time: —

Where 37657 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.

★ Weird and wonderful facts about 37657
  • 🔢 Type 37657 into a pocket calculator and turn it upside down: LSgLE — not quite a word, sorry.
  • ➕ 37657 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 28, a total 1,520 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001001100011001
  • 🏠 Its numerical neighbours: 37656 (Fall Branch, TN, 27 mi away) and 37658 (Hampton, TN, 28 mi away).
  • 🔄 Backwards, 37657 becomes 75673, which is not a ZIP code at all.
  • 👥 32 other ZIP codes are made of exactly the same digits (35677, 35767, 35776, 36577, 36775, 37756, …). The farthest-flung twin is 57763 in Oelrichs, SD, 1,202 miles away.
  • 🧭 Farther south than 69% of all ZIP codes, and farther east than 64%.
  • 🎯910 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 37657 and you would come out at 36.02°S, 97.44°E — 1,090 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 36m of daylight. Shortest: 9h 42m.
  • 📏 At 36.7 square miles of land, 37657 is bigger than 51% of ZIP codes — room for about 28 Central Parks.
🌙 The sky over 37657 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,060This ZIP1,060
Households400This ZIP400
Housing units551This ZIP551
Median age41.7This ZIP41.7Tennessee38.9US 38.9
Median household income$73,108This ZIP$73,108Tennessee$69,595US $80,734
Median home value$190,600This ZIP$190,600Tennessee$286,700US $332,700
Bachelor's degree or higher31.6%This ZIP31.6%
Mean commute27.1 minThis ZIP27.1 min
Population density28.9 / sq miThis ZIP28.9 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees4This ZIP4
Annual payroll$243,000This ZIP$243,000
Tax returns filed340This ZIP340
Total adjusted gross income$22,455,000This ZIP$22,455,000

Land area

Land area36.73 sq miThis ZIP36.73 sq mi
Water area0.00 sq mi

ZIP codes near 37657

ZIPCityDistance
37650 Erwin, TN 7.1 mi
28754 Mars Hill, NC 10.0 mi
28753 Marshall, NC 13.6 mi
37641 Chuckey, TN 13.9 mi
28740 Green Mountain, NC 14.3 mi
37690 Telford, TN 16.2 mi
37743 Greeneville, TN 16.9 mi
37681 Limestone, TN 17.0 mi
28714 Burnsville, NC 17.2 mi
37616 Afton, TN 17.7 mi

Find every ZIP code within 10 miles of 37657 →

Questions about this ZIP code

Where is ZIP code 37657?

37657 is in Flag Pond, Tennessee, in Unicoi County, part of the Johnson City, TN metropolitan area. Its published point location is 36.0172, -82.5605.

What county is 37657 in?

37657 lies in Unicoi County.

What area code is 37657?

Flag Pond uses area code 423, from NANPA's telephone records.

What time zone is 37657 in?

37657 uses America/New_York.

How many people live in 37657?

About 1,060 people live in ZIP code 37657, in 400 households, at 28.9 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 37657?

$73,108 a year, against $69,595 across Tennessee.

What ZIP codes are near 37657?

The closest are 37650 (7.1 mi), 28754 (10 mi), 28753 (13.6 mi), 37641 (13.9 mi) and 28740 (14.3 mi).

Is 37657 a PO Box ZIP code?

37657 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “37657 ZIP Code — Flag Pond, Tennessee (Unicoi County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/37657

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