ZIP code 37657
Where is ZIP code 37657?
Flag Pond, Tennessee
Unicoi County · Standard ZIP code
ZIP code 37657 belongs to Flag Pond, Tennessee in Unicoi County. 37657 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 423 and 828. About 1,060 people live in the 37657 area, where the median household income is $73,108. The closest ZIP codes are 37614 (Johnson City, 10.3 mi north), 28754 (Mars Hill, 11 mi south) and 37650 (Erwin, 11.9 mi northeast).
| ZIP code | 37657 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Flag Pond |
| State | Tennessee (TN) |
| County | Unicoi County |
| Time zone | Eastern Time · now |
| Area codes | 423, 828 |
| Coordinates | 36.0085, -82.5623 map |
| 3-digit prefix | 376 |
Population and income in 37657
| Population | 1,060 · lower than 86% of Tennessee ZIP codes |
|---|---|
| People per square mile | 29 · lower than 84% of Tennessee ZIP codes |
| Median age | 41.7 years · lower than 54% of Tennessee ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $73,108 · higher than 71% of Tennessee ZIP codes |
| Income per person | $24,230 |
| Below the poverty line | 5.4% |
| Bachelor’s degree or higher | 32% of adults 25+ |
| Median home value | $190,600 · lower than 60% of Tennessee ZIP codes |
| Housing units | 551 |
| Households | 400 (2.65 people on average) |
| Owners / renters | 86% / 14% |
| Land area | 36.73 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 37657. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 37657
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 37614 | Johnson City, TN | 10.3 mi N | PO Box only |
| 28754 | Mars Hill, NC | 11 mi S | Standard |
| 37650 | Erwin, TN | 11.9 mi NE | Standard |
| 28753 | Marshall, NC | 13.2 mi SW | Standard |
| 37690 | Telford, TN | 16.4 mi N | Standard |
| 28740 | Green Mountain, NC | 17 mi E | Standard |
| 28714 | Burnsville, NC | 17 mi SE | Standard |
| 28709 | Barnardsville, NC | 17.2 mi S | Standard |
| 37681 | Limestone, TN | 17.3 mi N | Standard |
| 37616 | Afton, TN | 18.3 mi NW | Standard |
| 37602 | Johnson City, TN | 18.5 mi N | PO Box only |
| 37641 | Chuckey, TN | 18.6 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 37657 or measure the distance to another ZIP code.
How to address mail to 37657
123 MAIN ST
FLAG POND TN 37657
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (37657-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 37657?
- 37657 is a Flag Pond, Tennessee ZIP code.
- What county is 37657 in?
- ZIP code 37657 is in Unicoi County, Tennessee.
- What time zone is ZIP code 37657 in?
- 37657 is in the Eastern Time zone (America/New_York).
- What area code is 37657?
- Phone numbers in ZIP code 37657 use area codes 423 and 828.
- What is the population of ZIP code 37657?
- About 1,060 people live in ZIP code 37657, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 37657?
- The median household income in 37657 is $73,108 a year, higher than 71% of Tennessee ZIP codes.
- What ZIP codes are near 37657?
- The nearest ZIP codes to 37657 are 37614 (Johnson City, 10.3 miles), 28754 (Mars Hill, 11 miles), 37650 (Erwin, 11.9 miles) and 28753 (Marshall, 13.2 miles).