Population 481,470 · Census ACS 2020–24
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Population and households in Seminole County
Household size in Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.74 | 2.73 | 2.63 | 2.68 |
| 2010–14 | 2.94 | 2.87 | 2.73 | 2.73 |
| 2015–19 | 2.67 | 2.90 | 2.75 | 2.71 |
| 2020–24 | 2.62 | 2.78 | 2.63 | 2.65 |
| Change | −0.12 | +0.05 | +0.00 | −0.03 |
At 2.62 people per household, Seminole County sits close to the national average of 2.65. The typical household here is smaller than in the Orlando area overall, where it has 2.78 people. Since 2006–10, household size has dropped from 2.74, a much bigger shift than nationally.
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 Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 37.7 | 36.4 | 40.8 | 37.7 |
| 2010–14 | 39.1 | 37.4 | 42.0 | 38.6 |
| 2015–19 | 40.0 | 38.4 | 43.0 | 39.6 |
| 2020–24 | 40.6 | 39.4 | 43.5 | 40.1 |
| Change | +2.9 | +3.0 | +2.7 | +2.3 |
At 40.6, the median age in Seminole County is close to the national median of 40.1, so its age mix looks much like the country's. The median age has climbed from 37.7 in 2006–10, as it has nationally. The youngest areas are in the north, the oldest in the east.
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 Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.7% | 12.5% | 12.4% | 12.3% |
| 2010–14 | 10.1% | 12.4% | 12.2% | 12.3% |
| 2015–19 | 10.0% | 12.0% | 11.5% | 11.6% |
| 2020–24 | 10.3% | 11.5% | 11.4% | 11.6% |
| Change | −0.5 pts | −1.0 pts | −1.0 pts | −0.6 pts |
Single parents head about one in ten households in Seminole County (10.3%), a little below the national share of 11.6%. The single-parent share has barely moved since 2006–10, while the national share fell.
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 Seminole County
Renters in Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 28.7% | 34.2% | 30.3% | 33.3% |
| 2010–14 | 30.4% | 37.9% | 33.9% | 35.6% |
| 2015–19 | 35.4% | 39.1% | 34.6% | 36.0% |
| 2020–24 | 33.8% | 36.9% | 32.4% | 34.8% |
| Change | +5.1 pts | +2.8 pts | +2.1 pts | +1.5 pts |
Renting in Seminole County is about as common as it is nationally: 33.8% of households rent, against 34.8%. Renters make up a smaller share here than in the Orlando area overall (36.9%). Among homeowners, 35.0% have no mortgage at all, below the national share of 39.8%. The renter share is up 5.1 points from 2006–10, a much bigger shift than 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 Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 14.7% | 16.5% | 17.2% | 11.4% |
| 2010–14 | 18.9% | 17.5% | 17.6% | 11.4% |
| 2015–19 | 9.0% | 14.6% | 15.4% | 11.1% |
| 2020–24 | 7.1% | 11.3% | 12.5% | 9.6% |
| Change | −7.6 pts | −5.3 pts | −4.8 pts | −1.8 pts |
Vacancy is on the low side in Seminole County: 7.1% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. Vacancy is down 7.6 points from 2006–10, a much bigger shift than nationally. Only one other Florida county has a lower vacancy rate.
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 Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 1986 | 1989 | 1984 | 1974 |
| 2010–14 | 1987 | 1990 | 1985 | 1975 |
| 2015–19 | 1987 | 1991 | 1986 | 1977 |
| 2020–24 | 1990 | 1995 | 1989 | 1980 |
| Change | +4 | +6 | +5 | +6 |
Much of the housing in Seminole County is relatively new: half of its homes were built after 1990, compared with 1980 for the U.S. as a whole. Still, homes here are older than in the Orlando area overall, where the median home dates to 1995. The median year built has moved up from 1986 in 2006–10, a sign of steady new building. The newest homes are mostly in the northwest, 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 Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,193 | $1,130 | $1,092 | $965 |
| 2010–14 | $1,178 | $1,149 | $1,123 | $1,040 |
| 2015–19 | $1,392 | $1,336 | $1,323 | $1,213 |
| 2020–24 | $1,926 | $1,890 | $1,816 | $1,571 |
| Change | +$733 | +$759 | +$724 | +$606 |
The median renter in Seminole County pays $1,926 a month for rent and utilities, well above the national median of $1,571. Rents are up $733 a month from 2006–10, a 61% jump, roughly in step with the nation. The typical renter here spends 34.5% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
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 Seminole County
Bachelor's degrees in Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 33.9% | 28.5% | 26.4% | 28.4% |
| 2010–14 | 35.3% | 28.9% | 27.0% | 29.6% |
| 2015–19 | 39.9% | 32.7% | 30.0% | 32.1% |
| 2020–24 | 43.0% | 37.4% | 34.6% | 35.6% |
| Change | +9.1 pts | +8.9 pts | +8.2 pts | +7.2 pts |
College degrees are more common in Seminole County than nationally: 43.0% of adults 25 and older have a bachelor's or higher, against 35.6%. Since 2006–10, the share with a degree has risen 9.1 points, in line with the national trend. Only three of Florida's 67 counties have a higher share of college graduates.
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 Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 90.8% | 87.6% | 85.5% | 84.9% |
| 2010–14 | 92.3% | 87.9% | 86.5% | 86.1% |
| 2015–19 | 94.3% | 89.6% | 88.2% | 87.7% |
| 2020–24 | 94.0% | 91.3% | 90.0% | 89.3% |
| Change | +3.2 pts | +3.7 pts | +4.4 pts | +4.3 pts |
High school completion in Seminole County is above the national rate: 94.0% of adults have a diploma, against 89.3%. The share with a diploma is up 3.2 points from 2006–10, in line with the national trend. Few Florida counties have a higher share of high school graduates: only three of 67.
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 Seminole County
| Period | Seminole County | Orlando area | Florida | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.3% | 8.6% | 8.9% | 8.1% |
| 2010–14 | 10.1% | 10.5% | 11.0% | 9.4% |
| 2015–19 | 4.9% | 5.2% | 5.7% | 5.6% |
| 2020–24 | 4.2% | 5.1% | 4.8% | 5.4% |
| Change | −3.1 pts | −3.5 pts | −4.1 pts | −2.7 pts |
Unemployment in Seminole County runs below the national rate: 4.2% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has fallen 3.1 points since 2006–10, mirroring the country. 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).
Seminole County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Seminole County | 2.62 | 40.6 | 10.3% | 33.8% | 7.1% | 1990 | $1,926 | 43.0% | 94.0% | 4.2% |
| Orange County | 2.81 | 37.5 | 12.0% | 43.2% | 11.1% | 1994 | $1,936 | 40.0% | 90.7% | 5.6% |
| Lake County | 2.58 | 46.4 | 9.5% | 22.4% | 12.7% | 1998 | $1,718 | 29.6% | 91.8% | 4.3% |
| Volusia County | 2.39 | 46.5 | 10.8% | 26.3% | 12.0% | 1988 | $1,639 | 28.6% | 92.0% | 4.2% |
| Osceola County | 3.03 | 37.4 | 13.1% | 34.7% | 14.5% | 2002 | $1,870 | 30.7% | 90.0% | 5.2% |
| Sumter County | 1.98 | 62.9 | 5.1% | 12.4% | 16.8% | 2005 | $1,578 | 35.6% | 92.7% | 5.9% |
| Brevard County | 2.52 | 46.2 | 9.2% | 23.3% | 12.7% | 1988 | $1,688 | 33.8% | 93.1% | 4.9% |
| Polk County | 2.80 | 40.5 | 13.1% | 29.5% | 14.4% | 1992 | $1,499 | 23.4% | 87.7% | 4.9% |
| Flagler County | 2.46 | 51.2 | 8.7% | 17.0% | 12.9% | 2001 | $1,696 | 31.0% | 93.3% | 4.2% |
| Marion County | 2.45 | 47.3 | 10.9% | 22.5% | 12.4% | 1992 | $1,403 | 23.4% | 89.3% | 4.9% |
| Putnam County | 2.42 | 44.2 | 14.1% | 24.6% | 14.7% | 1984 | $915 | 14.0% | 81.9% | 7.2% |
All figures 2020–24.
Counties with similar populations: Sedgwick County, KS · Lane County, OR · Lehigh County, PA · Loudoun County, VA · Lucas County, OH · Madison County, AL · Manatee County, FL · Marion County, FL · Mercer County, NJ · Monterey County, 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 Seminole County. 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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