Population 259 · 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 ↓︎
Younger residents
Older residents
Colorblind friendly
off
More maps of Cardiff: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet
Population and households in Cardiff
Household size in Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.89 | 2.56 | 2.55 | 2.68 |
| 2010–14 | 2.89 | 2.59 | 2.58 | 2.73 |
| 2015–19 | 2.71 | 2.59 | 2.58 | 2.71 |
| 2020–24 | 3.08 | 2.57 | 2.56 | 2.65 |
| Change | +0.19 | +0.01 | +0.00 | −0.03 |
Households in Cardiff are large by national standards, averaging 3.08 people against 2.65 for the U.S. That usually means more families with children at home. Since 2006–10, household size has climbed from 2.89, but in a place this small, survey estimates can swing a lot from one release to the next.
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 Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 33.9 | 37.9 | 38.2 | 37.7 |
| 2010–14 | 36.4 | 39.1 | 39.1 | 38.6 |
| 2015–19 | 44.0 | 39.9 | 40.1 | 39.6 |
| 2020–24 | 34.1 | 40.0 | 40.2 | 40.1 |
| Change | +0.2 | +2.1 | +2.0 | +2.3 |
Cardiff is young: half of its residents are under 34.1, compared with a national median of 40.1. The population tilts toward young families with children.
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 Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.7% | 12.1% | 12.5% | 12.3% |
| 2010–14 | 12.5% | 12.0% | 12.5% | 12.3% |
| 2015–19 | 10.5% | 11.2% | 11.8% | 11.6% |
| 2020–24 | 7.5% | 12.0% | 12.2% | 11.6% |
| Change | −5.2 pts | −0.1 pts | −0.3 pts | −0.6 pts |
Single-parent households are relatively rare in Cardiff: 7.5% of households, against 11.6% 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 Cardiff
Renters in Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 14.2% | 27.9% | 28.9% | 33.3% |
| 2010–14 | 11.8% | 30.4% | 30.8% | 35.6% |
| 2015–19 | 15.8% | 30.6% | 31.2% | 36.0% |
| 2020–24 | 14.3% | 29.2% | 29.8% | 34.8% |
| Change | +0.1 pts | +1.3 pts | +0.9 pts | +1.5 pts |
Only 14.3% of households in Cardiff rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Nearly half of owners (47.6%) have paid off their mortgages, 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 Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.5% | 12.5% | 14.0% | 11.4% |
| 2010–14 | 8.1% | 12.8% | 14.6% | 11.4% |
| 2015–19 | 6.4% | 13.6% | 15.7% | 11.1% |
| 2020–24 | 9.3% | 11.6% | 13.5% | 9.6% |
| Change | +2.9 pts | −1.0 pts | −0.5 pts | −1.8 pts |
Vacancy in Cardiff is close to the national rate: 9.3% of homes are empty, against 9.6%. The rate is lower than in the Birmingham area overall (11.6%).
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 Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 1991 | 1979 | 1980 | 1974 |
| 2010–14 | 1986 | 1981 | 1982 | 1975 |
| 2015–19 | 1984 | 1982 | 1983 | 1977 |
| 2020–24 | 1988 | 1984 | 1986 | 1980 |
| Change | −3 | +5 | +6 | +6 |
Much of the housing in Cardiff is relatively new: half of its homes were built after 1988, 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 Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | $732 | $827 | $716 | $965 |
| 2010–14 | $1,089 | $903 | $785 | $1,040 |
| 2015–19 | $620 | $984 | $858 | $1,213 |
| 2020–24 | $1,003 | $1,238 | $1,091 | $1,571 |
| Change | +$271 | +$412 | +$375 | +$606 |
Rent in Cardiff runs $1,003 a month at the median, utilities included, well below the U.S. median of $1,571. Rent takes 38.3% of the typical renter's income, 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 Cardiff
Bachelor's degrees in Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 18.5% | 28.3% | 23.3% | 28.4% |
| 2010–14 | 13.5% | 29.1% | 24.3% | 29.6% |
| 2015–19 | 22.0% | 31.1% | 26.2% | 32.1% |
| 2020–24 | 25.8% | 34.7% | 29.0% | 35.6% |
| Change | +7.3 pts | +6.4 pts | +5.7 pts | +7.2 pts |
Just over a quarter of adults 25 and older in Cardiff (25.8%) have a bachelor's degree or higher, 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 Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 80.7% | 85.7% | 82.3% | 84.9% |
| 2010–14 | 77.3% | 86.8% | 84.3% | 86.1% |
| 2015–19 | 86.6% | 88.9% | 86.4% | 87.7% |
| 2020–24 | 92.2% | 90.5% | 88.7% | 89.3% |
| Change | +11.5 pts | +4.9 pts | +6.4 pts | +4.3 pts |
High school completion in Cardiff is a bit above the national rate: 92.2% of adults have a diploma or equivalent, against 89.3%.
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 Cardiff
| Period | Cardiff | Birmingham area | Alabama | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.5% | 8.0% | 8.6% | 8.1% |
| 2010–14 | 5.7% | 9.2% | 10.2% | 9.4% |
| 2015–19 | 6.8% | 5.9% | 6.1% | 5.6% |
| 2020–24 | 1.5% | 4.4% | 4.9% | 5.4% |
| Change | −4.0 pts | −3.6 pts | −3.7 pts | −2.7 pts |
The job market in Cardiff has been strong: just 1.5% of the labor force was out of work and looking, well below the national rate of 5.4%. 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).
Cardiff 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Cardiff | 3.08 | 34.1 | 7.5% | 14.3% | 9.3% | 1988 | $1,003 | 25.8% | 92.2% | 1.5% |
| Mount Olive | 2.60 | 40.5 | 6.4% | 14.5% | 8.9% | 1985 | $1,170 | 26.4% | 90.2% | 1.2% |
| Brookside | 2.51 | 39.8 | 18.0% | 35.1% | 8.6% | 1977 | $864 | 17.0% | 88.0% | 2.7% |
| Sayre | 2.21 | 48.1 | 7.0% | 4.0% | 17.3% | 1985 | $963 | 10.1% | 92.2% | 0.3% |
| Graysville | 2.37 | 41.4 | 12.1% | 36.9% | 13.9% | 1962 | $1,111 | 17.1% | 88.3% | 4.3% |
| Gardendale | 2.55 | 38.5 | 10.4% | 17.9% | 6.2% | 1986 | $1,089 | 30.3% | 92.6% | 3.6% |
| Adamsville | 2.65 | 41.9 | 15.3% | 20.6% | 16.5% | 1969 | $1,371 | 16.6% | 86.7% | 3.0% |
| Fultondale | 2.27 | 37.4 | 20.4% | 35.9% | 7.4% | 1985 | $1,227 | 29.1% | 91.3% | 2.6% |
| Forestdale | 2.53 | 43.9 | 12.7% | 32.5% | 9.3% | 1968 | $1,278 | 28.1% | 91.7% | 5.0% |
| Dora | 2.84 | 44.7 | 8.9% | 11.9% | 14.4% | 1982 | $985 | 19.6% | 89.2% | 2.3% |
| Docena | 2.62 | 34.7 | 13.5% | 2.1% | 21.6% | 1973 | $1,252 | 17.0% | 97.9% | 0.0% |
All figures 2020–24.
Cities with similar populations: Walpole, IL · Barton, ND · Batesville, AL · Lucerne, MO · West Athens, ME · Macksville, WV · Manheim Center, NY · Zephyr, NC · Hatton, WA · Blackford, KY
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 Cardiff. 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.