37221 can be classified socioeconomically as 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 37221 is White. The majority race/ethnicity attending public schools in 37221 is White. The current unemployment level in 37221 is 4.4%.
| Population | 43,400 |
| Population Growth Rate | 6.35% |
| Population Density | 887 People per Square Mile |
| Total Households | 16,243 |
| Percentage High Income Households | 7.2% |
| Median Household Income (2021) | $90,660 |
| Average Adjusted Gross Income (2021) | $481,260 |
| Current Unemployment Rate (September 2025) | 4.4% |
| Sales Tax Rate (2025) | 9.8% |
| Majority Race/Ethnicty | White - 84.45% |
| Public School Majority Race/Ethnicty | White - 60.42% |
37221 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 35,124 | 84.45% |
| Black | 3,314 | 7.97% |
| Hispanic | 1,708 | 4.11% |
| Asian | 1,440 | 3.46% |
| Native American | 6 | 0.01% |
| Hawaiian/Pac. Islander | 0 | 0% |
37221 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 722 | 63.22% |
| Black | 242 | 21.19% |
| Hispanic | 109 | 9.54% |
| Asian | 64 | 5.6% |
| Native American | 1 | 0.09% |
| Hawaiian/Pac. Islander | 4 | 0.35% |
37221 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 1,469 | 5.69% |
| Bachelor Degree | 8,428 | 32.67% |
| High School Diploma | 3,774 | 14.63% |
| No High School Diploma | 258 | 1% |
| GED or Alternate | 382 | 1.48% |
| 1 or More Years of College | 3,829 | 14.84% |
| Associates Degree | 1,957 | 7.59% |
| Masters Degree | 3,303 | 12.8% |
| Professional Degree | 1,343 | 5.21% |
| Doctorate Degree | 1,052 | 4.08% |