38478, TN Demographics

Population 18,659 · Census ACS 2020–24

Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.

Median age by neighborhoodHistory and comparison ↓︎
38478, TN map of median age by neighborhood
Click the map to explore
Younger residents Older residents
Colorblind friendly off

More maps of ZIP 38478: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet

Jump to median age ↓︎

Population and households in ZIP 38478

Household size in ZIP 38478

Household size, people per household
PeriodZIP 38478TennesseeU.S.
2006–102.432.532.68
2010–142.462.572.73
2015–192.322.572.71
2020–242.462.532.65
Change+0.04+0.00−0.03
Show on the map ↑︎

Households in ZIP 38478 run small, averaging 2.46 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has crept up from 2.43, even as the national average fell. Households are largest in the north and smallest in the center.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in ZIP 38478

Median age, years
PeriodZIP 38478TennesseeU.S.
2006–1042.138.337.7
2010–1440.639.238.6
2015–1943.539.939.6
2020–2441.539.940.1
Change−0.6+1.6+2.3
Show on the map ↑︎

Half of the people in ZIP 38478 are younger than 41.5 and half are older, close to the national median of 40.1. The population here is older than in Tennessee as a whole, where the median age is 39.9. The median age has edged down from 42.1 in 2006–10, even as the national median rose.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in ZIP 38478

Single-parent households, % of households
PeriodZIP 38478TennesseeU.S.
2006–1013.3%12.2%12.3%
2010–1413.5%12.0%12.3%
2015–1912.3%11.6%11.6%
2020–2412.0%11.8%11.6%
Change−1.3 pts−0.4 pts−0.6 pts
Show on the map ↑︎

Single parents head about one in eight households in ZIP 38478 (12.0%), close to the national share of 11.6%. Since 2006–10, the single-parent share has edged down 1.3 points, as it has nationally.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in ZIP 38478

Renters in ZIP 38478

Renters, % of occupied homes
PeriodZIP 38478TennesseeU.S.
2006–1030.4%30.4%33.3%
2010–1433.4%32.9%35.6%
2015–1938.4%33.7%36.0%
2020–2432.4%33.1%34.8%
Change+2.0 pts+2.6 pts+1.5 pts
Show on the map ↑︎

Renting in ZIP 38478 is about as common as it is nationally: 32.4% of households rent, against 34.8%. Among homeowners, 46.7% have no mortgage at all, above the national share of 39.8%. Renting is most common in the center and least common in the northeast. Since 2006–10, the renter share has risen 2.0 points, as it has nationally.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in ZIP 38478

Vacant homes, % of all homes
PeriodZIP 38478TennesseeU.S.
2006–1014.9%11.5%11.4%
2010–1417.1%11.8%11.4%
2015–1914.4%11.8%11.1%
2020–2416.8%10.1%9.6%
Change+1.9 pts−1.4 pts−1.8 pts
Show on the map ↑︎

Vacancy is high in ZIP 38478: 16.8% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Vacancy has risen 1.9 points since 2006–10, even as the national rate fell.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in ZIP 38478

Age of homes, median year built
PeriodZIP 38478TennesseeU.S.
2006–10197819811974
2010–14197619821975
2015–19197819831977
2020–24198219861980
Change+4+6+6
Show on the map ↑︎

The typical home in ZIP 38478 was built around 1982, about the same vintage as the country's housing overall (1980). Homes here are older than in Tennessee as a whole, where the median home dates to 1986. The median year built has moved up from 1978 in 2006–10, a sign of steady new building. Newer construction is concentrated in the north, while the center has the oldest housing.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in ZIP 38478

Rent, per month
PeriodZIP 38478TennesseeU.S.
2006–10$531$761$965
2010–14$621$837$1,040
2015–19$656$961$1,213
2020–24$858$1,286$1,571
Change+$328+$526+$606
Show on the map ↑︎

The median renter in ZIP 38478 pays $858 a month for rent and utilities, well below the national median of $1,571. Rents are up $328 a month from 2006–10, a 62% jump, roughly in step with the nation. The typical renter here spends 24.3% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in ZIP 38478

Bachelor's degrees in ZIP 38478

Bachelor's degrees, % of adults 25+
PeriodZIP 38478TennesseeU.S.
2006–1011.8%23.9%28.4%
2010–1416.9%25.3%29.6%
2015–1918.3%27.9%32.1%
2020–2420.3%31.4%35.6%
Change+8.6 pts+7.5 pts+7.2 pts
Show on the map ↑︎

College degrees are relatively uncommon in ZIP 38478: 20.3% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree has risen 8.6 points since 2006–10, in line with the national trend.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in ZIP 38478

High school graduates, % of adults 25+
PeriodZIP 38478TennesseeU.S.
2006–1077.4%83.3%84.9%
2010–1478.6%85.4%86.1%
2015–1987.0%87.6%87.7%
2020–2489.9%89.9%89.3%
Change+12.5 pts+6.6 pts+4.3 pts
Show on the map ↑︎

About as many adults in ZIP 38478 have finished high school as nationally: 89.9%, against 89.3%. Since 2006–10, the share with a diploma has risen 12.5 points, as it has nationally.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in ZIP 38478

Unemployment, % of the labor force
PeriodZIP 38478TennesseeU.S.
2006–1012.0%8.6%8.1%
2010–1410.8%9.6%9.4%
2015–195.8%5.4%5.6%
2020–245.1%4.8%5.4%
Change−6.9 pts−3.8 pts−2.7 pts
Show on the map ↑︎

At 5.1%, unemployment in ZIP 38478 is close to the national rate of 5.4%. Unemployment has fallen 6.9 points since 2006–10, mirroring the country. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

ZIP 38478 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 384782.4641.512.0%32.4%16.8%1982$85820.3%89.9%5.1%
ZIP 384602.2648.07.5%12.7%9.8%1990$75417.5%84.2%1.2%
ZIP 384722.3346.03.1%21.5%11.1%1983$76723.8%85.5%6.9%
ZIP 384592.5344.57.0%16.7%16.8%1994$70526.1%86.3%4.7%
ZIP 384532.5543.69.3%19.8%14.1%1988$77524.8%83.3%6.6%
ZIP 370472.6742.16.6%16.7%7.7%1989$1,26122.3%88.3%5.4%
ZIP 384682.8137.98.3%18.3%11.4%1986$1,02017.0%89.6%1.8%
ZIP 384563.2030.76.5%14.6%11.8%1986$78314.9%75.3%3.0%
ZIP 384642.4942.111.6%27.5%10.0%1981$79114.3%86.9%5.6%
ZIP 371442.3345.97.8%16.5%9.6%1989$1,11421.3%89.7%5.0%
ZIP 373342.4640.514.7%30.3%8.5%1981$93920.9%89.4%6.2%

All figures 2020–24.

Zip codes with similar populations: 79714, TX · 28805, NC · 33701, FL · 33759, FL · 35111, AL · 61550, IL · 62656, IL · 63105, MO · 79045, TX · 02459, MA

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up ZIP 38478. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.