Population 6,967 · Census ACS 2020–24
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Population and households in Centennial
Household size in Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 2.15 | 2.63 | 2.74 | 3.04 | 2.68 |
| 2010–14 | 2.25 | 2.77 | 2.79 | 3.10 | 2.73 |
| 2015–19 | 2.17 | 2.77 | 2.83 | 3.09 | 2.71 |
| 2020–24 | 2.06 | 2.78 | 2.75 | 3.01 | 2.65 |
| Change | −0.09 | +0.15 | +0.01 | −0.03 | −0.03 |
Households in Centennial are small: just 2.06 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has edged down from 2.15 in 2006–10, in line with the national trend.
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 Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 34.9 | 38.3 | 38.6 | 35.8 | 37.7 |
| 2010–14 | 34.9 | 38.7 | 39.4 | 36.8 | 38.6 |
| 2015–19 | 34.4 | 39.0 | 40.1 | 37.9 | 39.6 |
| 2020–24 | 34.6 | 39.7 | 41.3 | 39.0 | 40.1 |
| Change | −0.3 | +1.4 | +2.7 | +3.1 | +2.3 |
With a median age of just 34.6, Centennial is far younger than the country as a whole (40.1), a population that tilts toward young adults, many of them living alone or as couples. The youngest areas are in the east, the oldest in the northwest.
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 Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 12.5% | 10.6% | 10.3% | 13.5% | 12.3% |
| 2010–14 | 8.9% | 9.2% | 9.9% | 13.5% | 12.3% |
| 2015–19 | 4.0% | 8.5% | 9.1% | 12.3% | 11.6% |
| 2020–24 | 3.9% | 8.3% | 8.8% | 12.3% | 11.6% |
| Change | −8.6 pts | −2.3 pts | −1.5 pts | −1.2 pts | −0.6 pts |
Single-parent households are relatively rare in Centennial: 3.9% of households, against 11.6% nationally. The single-parent share is down 8.6 points from 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 Centennial
Renters in Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 70.8% | 43.6% | 43.7% | 42.6% | 33.3% |
| 2010–14 | 67.9% | 44.6% | 46.2% | 45.2% | 35.6% |
| 2015–19 | 82.2% | 46.9% | 45.3% | 45.2% | 36.0% |
| 2020–24 | 85.6% | 48.1% | 44.5% | 44.1% | 34.8% |
| Change | +14.8 pts | +4.5 pts | +0.8 pts | +1.5 pts | +1.5 pts |
Renters far outnumber owners in Centennial: 85.6% of households rent their homes, against 34.8% nationally. Among homeowners, 22.6% have no mortgage at all, well below the national share of 39.8%. Rentals cluster in the northeast; owners are most common in the northwest. Since 2006–10, the renter share has risen 14.8 points, 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 Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 7.6% | 6.1% | 8.6% | 8.7% | 11.4% |
| 2010–14 | 10.0% | 5.7% | 7.1% | 8.1% | 11.4% |
| 2015–19 | 8.3% | 4.2% | 6.5% | 7.5% | 11.1% |
| 2020–24 | 6.0% | 7.1% | 7.5% | 7.3% | 9.6% |
| Change | −1.7 pts | +1.1 pts | −1.1 pts | −1.4 pts | −1.8 pts |
Vacancy is on the low side in Centennial: 6.0% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. Redwood City as a whole looks much the same. Vacancy is down 1.7 points from 2006–10, mirroring the country.
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 Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 1973 | 1965 | 1964 | 1972 | 1974 |
| 2010–14 | 1973 | 1966 | 1965 | 1973 | 1975 |
| 2015–19 | 1994 | 1969 | 1966 | 1974 | 1977 |
| 2020–24 | 1997 | 1970 | 1968 | 1976 | 1980 |
| Change | +24 | +5 | +4 | +4 | +6 |
Much of the housing in Centennial is relatively new: half of its homes were built after 1997, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1973 in 2006–10, a sign of steady new building. The newest homes are mostly in the east, the oldest in the northwest.
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 Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | $1,078 | $1,552 | $1,452 | $1,298 | $965 |
| 2010–14 | $1,243 | $1,642 | $1,551 | $1,379 | $1,040 |
| 2015–19 | $2,791 | $2,576 | $2,139 | $1,721 | $1,213 |
| 2020–24 | $3,237 | $3,033 | $2,666 | $2,229 | $1,571 |
| Change | +$2,159 | +$1,480 | +$1,214 | +$931 | +$606 |
Rent in Centennial runs $3,237 a month at the median, utilities included, well above the U.S. median of $1,571. Rents are up $2,159 a month from 2006–10, a 200% jump, faster than rents rose nationally. Rent takes 25.1% of the typical renter's income, comfortably under 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 southeast.
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 Centennial
Bachelor's degrees in Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 22.1% | 40.6% | 42.5% | 29.1% | 28.4% |
| 2010–14 | 28.1% | 42.5% | 44.1% | 30.1% | 29.6% |
| 2015–19 | 52.9% | 51.4% | 48.9% | 32.9% | 32.1% |
| 2020–24 | 63.0% | 55.4% | 52.2% | 36.3% | 35.6% |
| Change | +41.0 pts | +14.8 pts | +9.7 pts | +7.1 pts | +7.2 pts |
College graduates are unusually common in Centennial: 63.0% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby. The share with a degree is up 41.0 points from 2006–10, a much bigger shift than 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 Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 77.2% | 85.4% | 86.8% | 79.9% | 84.9% |
| 2010–14 | 79.5% | 85.5% | 87.5% | 80.7% | 86.1% |
| 2015–19 | 89.7% | 87.7% | 88.8% | 82.6% | 87.7% |
| 2020–24 | 87.0% | 87.4% | 89.1% | 84.2% | 89.3% |
| Change | +9.7 pts | +2.0 pts | +2.3 pts | +4.3 pts | +4.3 pts |
About one in eight adults in Centennial never finished high school, a bit more than nationally: 87.0% have a diploma or equivalent, against 89.3% across the U.S. The picture is much the same across Redwood City. Since 2006–10, the share with a diploma has risen 9.7 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 Centennial
| Period | Centennial | Redwood City | San Francisco area | California | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 3.9% | 5.9% | 7.8% | 9.2% | 8.1% |
| 2010–14 | 6.5% | 6.5% | 8.9% | 11.3% | 9.4% |
| 2015–19 | 4.9% | 3.2% | 4.6% | 6.3% | 5.6% |
| 2020–24 | 2.2% | 4.3% | 5.8% | 6.6% | 5.4% |
| Change | −1.7 pts | −1.6 pts | −2.0 pts | −2.6 pts | −2.7 pts |
Unemployment in Centennial has been low: just 2.2% of the labor force was out of work and looking, well below the national rate of 5.4%. Since 2006–10, unemployment has fallen 1.7 points, as it has nationally. 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).
Centennial compared with nearby neighborhoods
| Neighborhood | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Centennial | 2.06 | 34.6 | 3.9% | 85.6% | 6.0% | 1997 | $3,237 | 63.0% | 87.0% | 2.2% |
| Staumbaugh Heller | 2.98 | 33.1 | 12.7% | 84.9% | 5.1% | 1968 | $2,490 | 30.1% | 65.0% | 2.2% |
| Roosevelt-San Francisco | 2.60 | 44.3 | 8.2% | 42.5% | 6.5% | 1954 | $3,034 | 55.0% | 90.2% | 5.2% |
| Redwood Village | 3.28 | 38.8 | 17.5% | 61.0% | 9.7% | 1965 | $2,403 | 22.3% | 71.4% | 2.3% |
| Fair Oaks | 4.16 | 33.4 | 13.5% | 54.5% | 5.5% | 1959 | $2,486 | 29.8% | 74.3% | 8.1% |
| Friendly Acres | 3.74 | 33.4 | 9.9% | 45.5% | 6.3% | 1968 | $2,217 | 20.8% | 70.2% | 5.5% |
| Emerald Lake Hills | 2.77 | 44.3 | 3.7% | 11.4% | 4.7% | 1975 | $3,234 | 76.2% | 98.3% | 3.3% |
| Farm Hills | 2.84 | 42.6 | 3.4% | 12.4% | 2.2% | 1963 | $3,381 | 74.4% | 97.8% | 4.6% |
| West Atherton | 2.61 | 40.0 | 4.4% | 30.3% | 16.6% | 1962 | $3,223 | 72.4% | 94.5% | 5.3% |
| Downtown Menlo Park | 1.89 | 43.1 | 7.0% | 86.0% | 12.7% | 1969 | $2,851 | 76.7% | 93.1% | 1.4% |
| Belle Haven | 3.72 | 36.3 | 8.8% | 43.4% | 10.6% | 1966 | $2,880 | 31.9% | 74.9% | 10.1% |
All figures 2020–24.
Neighborhoods with similar populations: Westside, Binghamton, NY · West Waco, Woodway, TX · West Memorial, Katy, TX · Bridgetown North, Cincinnati, OH · Machuchal, San Juan, PR · Northwest, Garden City, ID · North Waltham, Waltham, MA · North Main, Greenville, SC · North East, Pasadena, CA · Natomas Corporate Center, Sacramento, 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 Centennial. 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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