ZIP code 37421
Where is ZIP code 37421?
Chattanooga, Tennessee
Hamilton County · Standard ZIP code
ZIP code 37421 belongs to Chattanooga, Tennessee in Hamilton County. 37421 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, 706 and 762. About 52,985 people live in the 37421 area, where the median household income is $82,517. The closest ZIP codes are 30726 (Graysville, 3.4 mi south), 37416 (Chattanooga, 5.1 mi north) and 37411 (Chattanooga, 5.1 mi west).
| ZIP code | 37421 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Chattanooga |
| State | Tennessee (TN) |
| County | Hamilton County |
| Time zone | Eastern Time · now |
| Area codes | 423, 706, 762 |
| Coordinates | 35.025, -85.1459 map |
| 3-digit prefix | 374 |
Population and income in 37421
| Population | 52,985 · higher than 97% of Tennessee ZIP codes |
|---|---|
| People per square mile | 1,671 · higher than 90% of Tennessee ZIP codes |
| Median age | 40.8 years · lower than 59% of Tennessee ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $82,517 · higher than 82% of Tennessee ZIP codes |
| Income per person | $47,620 |
| Below the poverty line | 11% |
| Bachelor’s degree or higher | 39% of adults 25+ |
| Median home value | $333,700 · higher than 82% of Tennessee ZIP codes |
| Median rent | $1,405 a month |
| Housing units | 24,063 |
| Households | 22,278 (2.3 people on average) |
| Owners / renters | 60% / 40% |
| Land area | 31.7 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 37421. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 37421
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 30726 | Graysville, GA | 3.4 mi S | PO Box only |
| 37416 | Chattanooga, TN | 5.1 mi N | Standard |
| 37411 | Chattanooga, TN | 5.1 mi W | Standard |
| 37315 | Collegedale, TN | 5.3 mi E | PO Box only |
| 37412 | Chattanooga, TN | 5.5 mi W | Standard |
| 37363 | Ooltewah, TN | 5.9 mi NE | Standard |
| 37406 | Chattanooga, TN | 6.3 mi NW | Standard |
| 37404 | Chattanooga, TN | 7.2 mi W | Standard |
| 30736 | Ringgold, GA | 7.2 mi S | Standard |
| 37302 | Apison, TN | 7.4 mi E | Standard |
| 30742 | Fort Oglethorpe, GA | 7.5 mi SW | Standard |
| 37407 | Chattanooga, TN | 8 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 37421 or measure the distance to another ZIP code.
How to address mail to 37421
123 MAIN ST
CHATTANOOGA TN 37421
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (37421-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Chattanooga, TN
All Chattanooga ZIP codes with population and income →
Questions
- What city is ZIP code 37421?
- 37421 is a Chattanooga, Tennessee ZIP code.
- What county is 37421 in?
- ZIP code 37421 is in Hamilton County, Tennessee.
- What time zone is ZIP code 37421 in?
- 37421 is in the Eastern Time zone (America/New_York).
- What area code is 37421?
- Phone numbers in ZIP code 37421 use area codes 423, 706 and 762.
- What is the population of ZIP code 37421?
- About 52,985 people live in ZIP code 37421, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 37421?
- The median household income in 37421 is $82,517 a year, higher than 82% of Tennessee ZIP codes.
- What ZIP codes are near 37421?
- The nearest ZIP codes to 37421 are 30726 (Graysville, 3.4 miles), 37416 (Chattanooga, 5.1 miles), 37411 (Chattanooga, 5.1 miles) and 37315 (Collegedale, 5.3 miles).