US Census Data

ZIP 37818 vs ZIP 37821

A side-by-side comparison of ZIP Code 37818 and ZIP Code 37821: population, income, housing, and more.

ZIP 37818 and ZIP 37821 are ZIP Code areas in Tennessee. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 37821 has the higher population (22,113 vs 5,407 in ZIP 37818). ZIP 37818 has the higher median household income ($46,657 vs $45,350 in ZIP 37821). ZIP 37818 has the higher median home value ($141,800 vs $127,800 in ZIP 37821).

Population, income & housing

ZIP 37818ZIP 37821
Population5,40722,113
Median age47.7 yrs43.7 yrs
Median household income$46,657$45,350
Median home value$141,800$127,800
Median gross rent$767$789
Housing units2,44110,897
Homeownership rate81.5%65.9%
Bachelor's degree or higher10.2%9.3%
Unemployment rate5.2%3.6%

Trends (ACS 5-year, 2019–2023)

ZIP 37818ZIP 37821
Population5,011 → 5,407 (+7.9%)21,975 → 22,113 (+0.6%)
Median household income$38,109 → $46,657 (+22.4%)$33,214 → $45,350 (+36.5%)
Median home value$94,700 → $141,800 (+49.7%)$108,300 → $127,800 (+18.0%)
Median gross rent$597 → $767 (+28.5%)$649 → $789 (+21.6%)

ZIP 37818

Population
5,0115,407
Median household income
$38,109$46,657
Median home value
$94,700$141,800
Median gross rent
$597$767

ZIP 37821

Population
21,97522,113
Median household income
$33,214$45,350
Median home value
$108,300$127,800
Median gross rent
$649$789

Age & race/ethnicity

Age distribution (share)

ZIP 37818ZIP 37821
Under 54.7%6.6%
5 to 1714.6%15.5%
18 to 247.4%7.9%
25 to 3412.4%11.3%
35 to 447.8%9.7%
45 to 5413.4%14.0%
55 to 6418.3%15.0%
65 to 7413.8%12.6%
75 and over7.5%7.3%

Race & ethnicity (share)

ZIP 37818ZIP 37821
White (non-Hispanic)97.8%91.9%
Black or African American0.0%1.4%
American Indian & Alaska Native0.0%0.2%
Asian0.1%0.7%
Native Hawaiian & Pacific Islander0.0%0.1%
Some other race0.0%0.0%
Two or more races1.8%3.0%
Hispanic or Latino0.3%2.9%

Educational attainment (age 25+)

Share of adults 25+

ZIP 37818ZIP 37821
No high school diploma20.1%16.4%
High school graduate45.1%50.4%
Some college or associate's24.6%23.8%
Bachelor's degree5.5%6.4%
Graduate or professional degree4.7%2.9%

Commute to work

How workers get to work (share)

ZIP 37818ZIP 37821
Drove alone91.0%79.0%
Carpooled5.8%13.6%
Public transit0.0%0.0%
Walked0.4%1.1%
Bicycle0.0%0.0%
Worked from home2.9%3.8%
Other means0.0%2.5%

Housing

Units in structure (share)

ZIP 37818ZIP 37821
1-unit, detached58.8%57.6%
1-unit, attached0.6%0.4%
2 to 4 units0.8%9.5%
5 to 19 units1.4%3.0%
20 or more units0.7%0.2%
Mobile home & other37.7%29.1%

Poverty & households

ZIP 37818ZIP 37821
Poverty rate13.7%24.5%
Average household size2.592.33
Mean commute (minutes)2929
Median year structure built19891984

Full profiles

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ZIP 37818 vs ZIP 37821: Compare Population & Demographics | US Census Data