ZIP 37221 vs ZIP 37228
A side-by-side comparison of ZIP Code 37221 and ZIP Code 37228: population, income, housing, and more.
ZIP 37221 and ZIP 37228 are ZIP Code areas in Tennessee. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 37221 has the higher population (41,811 vs 2,351 in ZIP 37228). ZIP 37221 has the higher median household income ($99,083 vs $73,708 in ZIP 37228). Since 2019, ZIP 37228's population has grown faster (+45.6% vs +1.9%).
Population, income & housing
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| Population | 41,811 | 2,351 |
| Median age | 39.5 yrs | 27.8 yrs |
| Median household income | $99,083 | $73,708 |
| Median home value | $432,900 | — |
| Median gross rent | $1,778 | $1,347 |
| Housing units | 20,323 | 1,688 |
| Homeownership rate | 70.4% | 1.0% |
| Bachelor's degree or higher | 62.0% | 54.6% |
| Unemployment rate | 4.0% | 7.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| Population | 41,017 → 41,811 (+1.9%) | 1,615 → 2,351 (+45.6%) |
| Median household income | $83,331 → $99,083 (+18.9%) | $31,451 → $73,708 (+134.4%) |
| Median home value | $282,600 → $432,900 (+53.2%) | — |
| Median gross rent | $1,350 → $1,778 (+31.7%) | $898 → $1,347 (+50.0%) |
ZIP 37221
41,01741,811
$83,331$99,083
$282,600$432,900
$1,350$1,778
ZIP 37228
1,6152,351
$31,451$73,708
$898$1,347
Age & race/ethnicity
Age distribution (share)
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| Under 5 | 5.8% | 2.2% |
| 5 to 17 | 15.6% | 7.6% |
| 18 to 24 | 6.1% | 20.4% |
| 25 to 34 | 15.5% | 37.2% |
| 35 to 44 | 13.6% | 14.5% |
| 45 to 54 | 12.9% | 7.7% |
| 55 to 64 | 12.1% | 2.0% |
| 65 to 74 | 10.9% | 6.0% |
| 75 and over | 7.5% | 2.3% |
Race & ethnicity (share)
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| White (non-Hispanic) | 79.3% | 21.2% |
| Black or African American | 7.3% | 67.2% |
| American Indian & Alaska Native | 0.1% | 0.3% |
| Asian | 3.8% | 0.5% |
| Native Hawaiian & Pacific Islander | 0.0% | 1.5% |
| Some other race | 0.8% | 0.0% |
| Two or more races | 3.2% | 7.4% |
| Hispanic or Latino | 5.6% | 2.0% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| No high school diploma | 3.2% | 16.3% |
| High school graduate | 11.7% | 14.1% |
| Some college or associate's | 23.1% | 15.0% |
| Bachelor's degree | 36.5% | 42.9% |
| Graduate or professional degree | 25.6% | 11.7% |
Commute to work
How workers get to work (share)
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| Drove alone | 72.1% | 69.6% |
| Carpooled | 7.1% | 2.4% |
| Public transit | 0.5% | 3.4% |
| Walked | 0.2% | 2.1% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 19.7% | 22.4% |
| Other means | 0.4% | 0.1% |
Housing
Units in structure (share)
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| 1-unit, detached | 53.0% | 0.9% |
| 1-unit, attached | 15.9% | 0.0% |
| 2 to 4 units | 7.1% | 7.5% |
| 5 to 19 units | 14.3% | 23.5% |
| 20 or more units | 9.3% | 68.1% |
| Mobile home & other | 0.4% | 0.0% |
Poverty & households
| ZIP 37221 | ZIP 37228 | |
|---|---|---|
| Poverty rate | 6.3% | 11.3% |
| Average household size | 2.20 | 1.47 |
| Mean commute (minutes) | 26 | 27 |
| Median year structure built | 1991 | 2010 |