Seffner, FL Demographics

Population 23,336 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Seffner, FL map of median age by neighborhood
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Population and households in Seffner

Household size in Seffner

Household size, people per household
PeriodSeffnerTampa areaFloridaU.S.
2006–102.832.492.632.68
2010–142.942.562.732.73
2015–192.992.592.752.71
2020–243.032.552.632.65
Change+0.20+0.06+0.00−0.03
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Seffner is a place of big households: 3.03 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Since 2006–10, household size has climbed from 2.83, even as the national average fell.

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 Seffner

Median age, years
PeriodSeffnerTampa areaFloridaU.S.
2006–1039.141.240.837.7
2010–1440.642.342.038.6
2015–1941.243.243.039.6
2020–2439.943.143.540.1
Change+0.8+1.9+2.7+2.3
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At 39.9, the median age in Seffner is close to the national median of 40.1, so its age mix looks much like the country's. The population here is younger than in the wider Tampa area, where the median age is 43.1. Since 2006–10, the median age has crept up from 39.1, as it has nationally.

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 Seffner

Single-parent households, % of households
PeriodSeffnerTampa areaFloridaU.S.
2006–1013.4%12.0%12.4%12.3%
2010–1410.1%11.9%12.2%12.3%
2015–1912.3%11.2%11.5%11.6%
2020–249.9%10.7%11.4%11.6%
Change−3.5 pts−1.3 pts−1.0 pts−0.6 pts
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Single parents head about one in ten households in Seffner (9.9%), a little below the national share of 11.6%. That is in line with the rest of the Tampa area. The single-parent share has fallen 3.5 points since 2006–10, a much bigger shift than 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 Seffner

Renters in Seffner

Renters, % of occupied homes
PeriodSeffnerTampa areaFloridaU.S.
2006–1014.9%30.3%30.3%33.3%
2010–1417.2%34.7%33.9%35.6%
2015–1920.2%35.1%34.6%36.0%
2020–2417.4%32.1%32.4%34.8%
Change+2.4 pts+1.8 pts+2.1 pts+1.5 pts
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Seffner is largely a place of homeowners: only 17.4% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 40.9% have no mortgage at all, about the same as nationally. The renter share is up 2.4 points from 2006–10, in line with the national trend.

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 Seffner

Vacant homes, % of all homes
PeriodSeffnerTampa areaFloridaU.S.
2006–107.1%15.2%17.2%11.4%
2010–149.5%15.4%17.6%11.4%
2015–197.0%13.4%15.4%11.1%
2020–248.1%11.0%12.5%9.6%
Change+0.9 pts−4.2 pts−4.8 pts−1.8 pts
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Vacancy is on the low side in Seffner: 8.1% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. Vacancy is up 0.9 points from 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 Seffner

Age of homes, median year built
PeriodSeffnerTampa areaFloridaU.S.
2006–101984198219841974
2010–141987198319851975
2015–191987198419861977
2020–241992198819891980
Change+8+5+5+6
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Seffner has newer housing than the country as a whole: the median home was built in 1992, versus 1980 nationally. The median year built has moved up from 1984 in 2006–10, a sign of steady new building. The newest homes are mostly in the northeast, the oldest in the southwest.

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 Seffner

Rent, per month
PeriodSeffnerTampa areaFloridaU.S.
2006–10$998$1,036$1,092$965
2010–14$1,218$1,069$1,123$1,040
2015–19$1,300$1,244$1,323$1,213
2020–24$1,826$1,767$1,816$1,571
Change+$828+$731+$724+$606
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Rent in Seffner runs $1,826 a month at the median, utilities included, above the U.S. median of $1,571. Rent has climbed $828 a month since 2006–10, up 83%, faster than rents rose nationally. Rent takes 31.6% of the typical renter's income, just over the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the northwest; the highest are in the southwest.

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 Seffner

Bachelor's degrees in Seffner

Bachelor's degrees, % of adults 25+
PeriodSeffnerTampa areaFloridaU.S.
2006–1019.5%26.6%26.4%28.4%
2010–1421.6%27.1%27.0%29.6%
2015–1925.2%30.4%30.0%32.1%
2020–2429.7%35.2%34.6%35.6%
Change+10.2 pts+8.6 pts+8.2 pts+7.2 pts
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About three in ten adults 25 and older in Seffner (29.7%) have a bachelor's degree or higher, a little below the national share of 35.6%. The share with a degree has risen 10.2 points since 2006–10, as it has nationally.

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 Seffner

High school graduates, % of adults 25+
PeriodSeffnerTampa areaFloridaU.S.
2006–1084.9%86.7%85.5%84.9%
2010–1488.9%87.9%86.5%86.1%
2015–1989.8%89.4%88.2%87.7%
2020–2487.2%90.9%90.0%89.3%
Change+2.3 pts+4.2 pts+4.4 pts+4.3 pts
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About one in eight adults in Seffner never finished high school, a bit more than nationally: 87.2% have a diploma or equivalent, against 89.3% across the U.S. The share with a diploma has risen 2.3 points since 2006–10, mirroring the country.

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 Seffner

Unemployment, % of the labor force
PeriodSeffnerTampa areaFloridaU.S.
2006–106.2%8.7%8.9%8.1%
2010–149.9%10.6%11.0%9.4%
2015–194.9%5.7%5.7%5.6%
2020–243.8%4.7%4.8%5.4%
Change−2.5 pts−4.1 pts−4.1 pts−2.7 pts
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Jobs have been easier to find in Seffner than nationally: unemployment was 3.8%, against 5.4%. Unemployment has fallen 2.5 points since 2006–10, as it has nationally. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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).

Seffner compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Seffner3.0339.99.9%17.4%8.1%1992$1,82629.7%87.2%3.8%
Mango2.6137.616.1%37.8%11.6%1986$1,29916.5%79.2%5.6%
Dover2.9641.88.2%23.0%8.7%1995$1,49326.2%83.5%3.6%
Brandon2.6838.715.7%42.3%8.2%1990$1,83931.8%89.7%4.8%
Valrico2.7943.98.6%20.8%5.4%1994$2,09238.8%91.9%3.7%
East Lake-Orient Park2.6233.618.5%50.5%6.5%1983$1,49024.7%86.7%5.6%
Thonotosassa2.8439.013.0%36.7%10.2%1995$1,30934.6%85.3%7.9%
Temple Terrace2.3935.113.4%50.3%7.0%1980$1,58540.3%90.5%4.9%
Palm River-Clair Mel3.0434.520.1%37.1%7.9%1989$1,68824.2%80.9%5.3%
Durant2.6538.01.8%28.4%5.0%2000$1,38028.8%84.0%3.0%
Bloomingdale2.8444.77.5%18.1%6.0%1991$2,22644.6%94.8%4.1%

All figures 2020–24.

Cities with similar populations: Salmon Creek, WA · Meadowbrook, VA · Merrimack, NH · Mill Creek, WA · Millersville, MD · Parma Heights, OH · Ridgefield, WA · River Falls, WI · Rocky River, OH · Rosamond, CA

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 Seffner. 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.

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