Population 4,429 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in O'Brien
Household size in O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 2.62 | 2.63 | 2.68 |
| 2010–14 | 2.75 | 2.73 | 2.73 |
| 2015–19 | 2.93 | 2.75 | 2.71 |
| 2020–24 | 2.85 | 2.63 | 2.65 |
| Change | +0.23 | +0.00 | −0.03 |
Households in O'Brien average 2.85 people, above the national 2.65, so families with children are more common here. Household size has climbed from 2.62 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.
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 O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 46.7 | 40.8 | 37.7 |
| 2010–14 | 42.9 | 42.0 | 38.6 |
| 2015–19 | 39.3 | 43.0 | 39.6 |
| 2020–24 | 39.5 | 43.5 | 40.1 |
| Change | −7.2 | +2.7 | +2.3 |
At 39.5, the median age in O'Brien 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 Florida overall, where the median age is 43.5.
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 O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 17.0% | 12.4% | 12.3% |
| 2010–14 | 17.7% | 12.2% | 12.3% |
| 2015–19 | 13.5% | 11.5% | 11.6% |
| 2020–24 | 7.0% | 11.4% | 11.6% |
| Change | −10.0 pts | −1.0 pts | −0.6 pts |
Single parents head only 7.0% of households in O'Brien, well below the national share of 11.6%.
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 O'Brien
Renters in O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 28.3% | 30.3% | 33.3% |
| 2010–14 | 31.3% | 33.9% | 35.6% |
| 2015–19 | 25.4% | 34.6% | 36.0% |
| 2020–24 | 17.9% | 32.4% | 34.8% |
| Change | −10.4 pts | +2.1 pts | +1.5 pts |
Only 17.9% of households in O'Brien rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 58.6% have no mortgage at all, well above the national share of 39.8%.
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 O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 22.8% | 17.2% | 11.4% |
| 2010–14 | 29.0% | 17.6% | 11.4% |
| 2015–19 | 20.0% | 15.4% | 11.1% |
| 2020–24 | 14.5% | 12.5% | 9.6% |
| Change | −8.2 pts | −4.8 pts | −1.8 pts |
Vacancy is high in O'Brien: 14.5% 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.
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 O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 1987 | 1984 | 1974 |
| 2010–14 | 1987 | 1985 | 1975 |
| 2015–19 | 1993 | 1986 | 1977 |
| 2020–24 | 1997 | 1989 | 1980 |
| Change | +9 | +5 | +6 |
Much of the housing in O'Brien is relatively new: half of its homes were built after 1997, compared with 1980 for the U.S. as a whole.
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 O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | $707 | $1,092 | $965 |
| 2010–14 | $766 | $1,123 | $1,040 |
| 2015–19 | $732 | $1,323 | $1,213 |
| 2020–24 | $931 | $1,816 | $1,571 |
| Change | +$224 | +$724 | +$606 |
A typical rental in O'Brien costs $931 a month with utilities, well below the national median of $1,571. Rent takes 21.4% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent.
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 O'Brien
Bachelor's degrees in O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 12.2% | 26.4% | 28.4% |
| 2010–14 | 9.1% | 27.0% | 29.6% |
| 2015–19 | 11.3% | 30.0% | 32.1% |
| 2020–24 | 20.4% | 34.6% | 35.6% |
| Change | +8.2 pts | +8.2 pts | +7.2 pts |
College degrees are relatively uncommon in O'Brien: 20.4% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%.
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 O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 77.5% | 85.5% | 84.9% |
| 2010–14 | 84.2% | 86.5% | 86.1% |
| 2015–19 | 81.8% | 88.2% | 87.7% |
| 2020–24 | 87.4% | 90.0% | 89.3% |
| Change | +10.0 pts | +4.4 pts | +4.3 pts |
About one in eight adults in O'Brien never finished high school, a bit more than nationally: 87.4% have a diploma or equivalent, against 89.3% across the U.S.
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 O'Brien
| Period | O'Brien | Florida | U.S. |
|---|---|---|---|
| 2006–10 | 7.3% | 8.9% | 8.1% |
| 2010–14 | 8.1% | 11.0% | 9.4% |
| 2015–19 | 4.5% | 5.7% | 5.6% |
| 2020–24 | 1.1% | 4.8% | 5.4% |
| Change | −6.3 pts | −4.1 pts | −2.7 pts |
Unemployment in O'Brien has been low: just 1.1% of the labor force was out of work and looking, well below the national rate of 5.4%. 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).
O'Brien compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| O'Brien | 2.85 | 39.5 | 7.0% | 17.9% | 14.5% | 1997 | $931 | 20.4% | 87.4% | 1.1% |
| Mc Alpin | 2.59 | 47.4 | 8.5% | 18.9% | 14.6% | 1998 | $1,035 | 17.2% | 88.0% | 3.6% |
| Branford | 2.49 | 45.1 | 9.4% | 16.2% | 22.6% | 1993 | $870 | 15.4% | 89.1% | 3.4% |
| Hildreth | 2.61 | 44.3 | 8.9% | 13.1% | 17.7% | 1997 | $896 | 12.8% | 88.5% | 2.6% |
| Day | 2.31 | 44.5 | 5.9% | 16.3% | 14.1% | 1987 | $497 | 13.6% | 88.8% | 1.9% |
| Wellborn | 2.95 | 43.1 | 11.2% | 22.1% | 17.7% | 1993 | $857 | 15.9% | 82.8% | 3.1% |
| Mayo | 2.67 | 41.7 | 12.0% | 26.8% | 16.9% | 1990 | $828 | 11.1% | 85.4% | 11.5% |
| Luraville | 2.69 | 45.1 | 10.3% | 13.5% | 16.3% | 1989 | $815 | 15.8% | 88.7% | 10.7% |
| Fort White | 2.50 | 50.9 | 9.3% | 11.8% | 13.2% | 1998 | $925 | 15.9% | 89.4% | 4.6% |
| Lake City | 2.52 | 40.3 | 15.0% | 30.9% | 9.6% | 1987 | $1,055 | 18.6% | 87.1% | 4.4% |
| Cooks Hammock | 2.22 | 54.1 | 14.3% | 18.0% | 11.0% | 1979 | $927 | 9.1% | 82.4% | 0.0% |
All figures 2020–24.
Cities with similar populations: Blaine, TN · Caledonia, NY · Eglin Afb, FL · Llano, TX · South Chicago Heights, IL · Orleans, IN · Overton, TX · Parker, FL · Piggott, AR · Powell Butte, OR
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 O'Brien. 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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