37421 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Tennessee based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 37421 is White. The majority race/ethnicity attending public schools in 37421 is White. The current unemployment level in 37421 is 3.3%.
| Population | 52,507 |
| Population Growth Rate | 8.64% |
| Population Density | 1,645 People per Square Mile |
| Total Households | 19,231 |
| Percentage High Income Households | 4.5% |
| Median Household Income (2021) | $68,982 |
| Average Adjusted Gross Income (2021) | $486,930 |
| Current Unemployment Rate (May 2026) | 3.3% |
| Sales Tax Rate (2025) | 9.2% |
| Majority Race/Ethnicty | White - 65.86% |
| Public School Majority Race/Ethnicty | White - 38.05% |
37421 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 35,461 | 65.86% |
| Black | 11,794 | 21.91% |
| Hispanic | 4,081 | 7.58% |
| Asian | 2,385 | 4.43% |
| Native American | 118 | 0.22% |
| Hawaiian/Pac. Islander | 0 | 0% |
37421 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 1,253 | 41.26% |
| Black | 1,204 | 39.64% |
| Hispanic | 486 | 16% |
| Asian | 92 | 3.03% |
| Native American | 2 | 0.07% |
| Hawaiian/Pac. Islander | 0 | 0% |
37421 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 2,431 | 7.99% |
| Bachelor Degree | 7,862 | 25.84% |
| High School Diploma | 6,452 | 21.2% |
| No High School Diploma | 318 | 1.04% |
| GED or Alternate | 1,160 | 3.81% |
| 1 or More Years of College | 5,493 | 18.05% |
| Associates Degree | 2,535 | 8.33% |
| Masters Degree | 2,909 | 9.56% |
| Professional Degree | 823 | 2.7% |
| Doctorate Degree | 448 | 1.47% |