ZIP code 37640
Where is ZIP code 37640?
Butler, Tennessee
Johnson County · Standard ZIP code
ZIP code 37640 belongs to Butler, Tennessee in Johnson County. 37640 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 3,851 people live in the 37640 area, where the median household income is $55,402. The closest ZIP codes are 28679 (Sugar Grove, 9.1 mi southeast), 28622 (Elk Park, 11.4 mi south) and 37687 (Roan Mountain, 11.7 mi southwest).
| ZIP code | 37640 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Butler |
| State | Tennessee (TN) |
| County | Johnson County |
| Time zone | Eastern Time · now |
| Area codes | 423, 828 |
| Coordinates | 36.3282, -81.9856 map |
| 3-digit prefix | 376 |
Population and income in 37640
| Population | 3,851 · lower than 55% of Tennessee ZIP codes |
|---|---|
| People per square mile | 37 · lower than 77% of Tennessee ZIP codes |
| Median age | 53.4 years · higher than 92% of Tennessee ZIP codes |
| Men / women | 52% / 48% |
| Median household income | $55,402 · lower than 65% of Tennessee ZIP codes |
| Income per person | $36,615 |
| Below the poverty line | 21% |
| Bachelor’s degree or higher | 21% of adults 25+ |
| Median home value | $174,000 · lower than 67% of Tennessee ZIP codes |
| Median rent | $687 a month |
| Housing units | 2,503 |
| Households | 1,899 (2.03 people on average) |
| Owners / renters | 86% / 14% |
| Land area | 105 sq mi (plus 7.64 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 37640. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 37640
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 28679 | Sugar Grove, NC | 9.1 mi SE | Standard |
| 28622 | Elk Park, NC | 11.4 mi S | Standard |
| 37687 | Roan Mountain, TN | 11.7 mi SW | Standard |
| 37643 | Elizabethton, TN | 12.1 mi W | Standard |
| 37658 | Hampton, TN | 12.3 mi SW | Standard |
| 37644 | Elizabethton, TN | 12.6 mi W | PO Box only |
| 37691 | Trade, TN | 13 mi E | Standard |
| 28692 | Vilas, NC | 13.2 mi E | Standard |
| 28698 | Zionville, NC | 13.3 mi E | Standard |
| 37683 | Mountain City, TN | 13.5 mi NE | Standard |
| 28604 | Banner Elk, NC | 13.5 mi SE | Standard |
| 28691 | Valle Crucis, NC | 14.1 mi SE | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 37640 or measure the distance to another ZIP code.
How to address mail to 37640
123 MAIN ST
BUTLER TN 37640
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (37640-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 37640?
- 37640 is a Butler, Tennessee ZIP code.
- What county is 37640 in?
- ZIP code 37640 is in Johnson County, Tennessee.
- What time zone is ZIP code 37640 in?
- 37640 is in the Eastern Time zone (America/New_York).
- What area code is 37640?
- Phone numbers in ZIP code 37640 use area codes 423 and 828.
- What is the population of ZIP code 37640?
- About 3,851 people live in ZIP code 37640, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 37640?
- The median household income in 37640 is $55,402 a year, lower than 65% of Tennessee ZIP codes.
- What ZIP codes are near 37640?
- The nearest ZIP codes to 37640 are 28679 (Sugar Grove, 9.1 miles), 28622 (Elk Park, 11.4 miles), 37687 (Roan Mountain, 11.7 miles) and 37643 (Elizabethton, 12.1 miles).