Population 6,009 · Census ACS 2020–24
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Population and households in Neighborhood Nine
Household size in Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 1.97 | 2.02 | 2.54 | 2.53 | 2.68 |
| 2010–14 | 1.89 | 2.08 | 2.59 | 2.57 | 2.73 |
| 2015–19 | 2.09 | 2.14 | 2.60 | 2.57 | 2.71 |
| 2020–24 | 2.20 | 2.07 | 2.55 | 2.52 | 2.65 |
| Change | +0.23 | +0.05 | +0.01 | −0.01 | −0.03 |
Households in Neighborhood Nine are small: just 2.20 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. Even so, the typical household here is bigger than in Cambridge as a whole, where it has 2.07 people. Household size has climbed from 1.97 in 2006–10, 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 Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 36.4 | 33.4 | 38.9 | 39.4 | 37.7 |
| 2010–14 | 35.8 | 32.7 | 39.7 | 40.1 | 38.6 |
| 2015–19 | 34.2 | 32.0 | 40.4 | 41.0 | 39.6 |
| 2020–24 | 33.8 | 32.1 | 40.8 | 41.4 | 40.1 |
| Change | −2.6 | −1.4 | +1.9 | +2.0 | +2.3 |
With a median age of just 33.8, Neighborhood Nine 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. Even so, the population here is older than in Cambridge overall, where the median age is 32.1. The median age has dropped from 36.4 in 2006–10, even as the national median rose.
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 Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 5.5% | 7.4% | 10.4% | 11.0% | 12.3% |
| 2010–14 | 6.2% | 6.3% | 10.2% | 11.0% | 12.3% |
| 2015–19 | 5.8% | 5.9% | 9.6% | 10.3% | 11.6% |
| 2020–24 | 6.2% | 6.3% | 9.7% | 10.6% | 11.6% |
| Change | +0.7 pts | −1.1 pts | −0.7 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in Neighborhood Nine: 6.2% of households, against 11.6% nationally. The picture is much the same across Cambridge. The single-parent share has edged up 0.7 points since 2006–10, even as 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 Neighborhood Nine
Renters in Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 68.7% | 64.1% | 36.8% | 36.0% | 33.3% |
| 2010–14 | 63.1% | 63.9% | 38.5% | 37.7% | 35.6% |
| 2015–19 | 61.9% | 65.2% | 38.3% | 37.6% | 36.0% |
| 2020–24 | 63.7% | 66.6% | 38.4% | 37.5% | 34.8% |
| Change | −5.1 pts | +2.4 pts | +1.6 pts | +1.5 pts | +1.5 pts |
Renters far outnumber owners in Neighborhood Nine: 63.7% of households rent their homes, against 34.8% nationally. About four in ten owners (40.9%) have paid off their mortgages, about the same as nationally. Rentals cluster in the north; owners are most common in the center. The renter share is down 5.1 points from 2006–10, even as the national share rose.
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 Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 7.9% | 9.1% | 8.1% | 9.5% | 11.4% |
| 2010–14 | 9.0% | 8.7% | 7.4% | 9.1% | 11.4% |
| 2015–19 | 10.4% | 12.3% | 7.3% | 8.9% | 11.1% |
| 2020–24 | 7.3% | 11.0% | 6.7% | 7.9% | 9.6% |
| Change | −0.6 pts | +1.9 pts | −1.4 pts | −1.6 pts | −1.8 pts |
Fewer homes sit empty in Neighborhood Nine than nationally: 7.3%, against 9.6% for the U.S. Vacancy is down 0.6 points from 2006–10, as it has nationally.
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 Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 1951 | 1950 | 1958 | 1958 | 1974 |
| 2010–14 | 1947 | 1950 | 1959 | 1959 | 1975 |
| 2015–19 | 1953 | 1955 | 1961 | 1961 | 1977 |
| 2020–24 | 1961 | 1959 | 1964 | 1963 | 1980 |
| Change | +10 | +9 | +6 | +5 | +6 |
Neighborhood Nine is a place of older homes: half were built before 1961, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The median year built has moved up from 1951 in 2006–10, a sign of steady new building. The newest homes are mostly in the west, the oldest in the south.
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 Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | $1,486 | $1,429 | $1,171 | $1,085 | $965 |
| 2010–14 | $1,726 | $1,610 | $1,251 | $1,157 | $1,040 |
| 2015–19 | $2,193 | $2,241 | $1,537 | $1,398 | $1,213 |
| 2020–24 | $2,581 | $2,761 | $2,051 | $1,860 | $1,571 |
| Change | +$1,095 | +$1,332 | +$881 | +$775 | +$606 |
A typical rental in Neighborhood Nine costs $2,581 a month with utilities, well above the national median of $1,571. Still, rents here are lower than in Cambridge overall ($2,761). Rent has climbed $1,095 a month since 2006–10, up 74%, faster than rents rose nationally. Only one other Cambridge neighborhood has lower rents.
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 Neighborhood Nine
Bachelor's degrees in Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 79.0% | 72.5% | 42.2% | 38.5% | 28.4% |
| 2010–14 | 82.0% | 76.0% | 44.1% | 40.1% | 29.6% |
| 2015–19 | 83.6% | 79.3% | 48.2% | 43.6% | 32.1% |
| 2020–24 | 80.6% | 81.4% | 51.9% | 47.2% | 35.6% |
| Change | +1.6 pts | +8.9 pts | +9.7 pts | +8.7 pts | +7.2 pts |
Neighborhood Nine is highly educated: about eight in ten adults 25 and older (80.6%) hold at least a bachelor's degree, far above the national share of 35.6%. Since 2006–10, the share with a degree has risen 1.6 points, a smaller shift than nationally. College graduates are most concentrated in the south and least in the north.
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 Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 97.7% | 94.5% | 89.8% | 88.4% | 84.9% |
| 2010–14 | 97.4% | 94.5% | 90.6% | 89.3% | 86.1% |
| 2015–19 | 97.9% | 95.9% | 91.5% | 90.5% | 87.7% |
| 2020–24 | 99.2% | 96.4% | 91.8% | 91.0% | 89.3% |
| Change | +1.5 pts | +1.9 pts | +2.1 pts | +2.6 pts | +4.3 pts |
Finishing high school is nearly universal in Neighborhood Nine: 99.2% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma has risen 1.5 points since 2006–10, as it has nationally. Only one other Cambridge neighborhood has a higher share of high school graduates.
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 Neighborhood Nine
| Period | Neighborhood Nine | Cambridge | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 9.5% | 5.9% | 7.0% | 7.5% | 8.1% |
| 2010–14 | 6.1% | 5.8% | 8.0% | 8.7% | 9.4% |
| 2015–19 | 5.2% | 4.1% | 4.6% | 5.0% | 5.6% |
| 2020–24 | 3.9% | 3.3% | 4.9% | 5.2% | 5.4% |
| Change | −5.6 pts | −2.6 pts | −2.1 pts | −2.3 pts | −2.7 pts |
Unemployment in Neighborhood Nine runs below the national rate: 3.9% of the labor force was out of work and looking, against 5.4% nationally. Since 2006–10, unemployment has fallen 5.6 points, in line with the national trend. 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).
Neighborhood Nine 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Neighborhood Nine | 2.20 | 33.8 | 6.2% | 63.7% | 7.3% | 1961 | $2,581 | 80.6% | 99.2% | 3.9% |
| Avon Hill | 2.04 | 32.8 | 2.5% | 54.0% | 7.5% | 1940 | $2,762 | 90.3% | 99.2% | 2.4% |
| West Cambridge | 2.18 | 41.6 | 5.3% | 31.9% | 9.1% | 1938 | $2,931 | 88.0% | 98.5% | 5.5% |
| North Cambridge | 2.22 | 34.9 | 6.3% | 66.0% | 10.2% | 1963 | $2,601 | 76.5% | 94.7% | 3.1% |
| Aggasiz-Harvard | 1.97 | 31.1 | 2.7% | 66.0% | 19.4% | 1945 | $2,773 | 85.6% | 98.1% | 2.3% |
| Spring Hill | 2.15 | 32.6 | 2.1% | 65.4% | 6.8% | 1944 | $2,497 | 78.3% | 96.6% | 2.5% |
| Ball Square | 2.41 | 33.0 | 2.2% | 55.4% | 6.5% | 1938 | $3,053 | 74.6% | 96.2% | 0.5% |
| Riverside | 2.01 | 27.0 | 8.4% | 77.9% | 16.3% | 1956 | $2,788 | 76.0% | 97.3% | 4.0% |
| Mid-Cambridge | 2.00 | 32.2 | 3.7% | 61.6% | 11.9% | 1942 | $2,727 | 86.8% | 97.3% | 2.8% |
| Tufts | 2.94 | 25.2 | 2.0% | 64.1% | 3.5% | 1938 | $2,908 | 88.6% | 97.6% | 2.9% |
| Strawberry Hill | 2.30 | 42.0 | 8.5% | 55.2% | 4.2% | 1947 | $2,714 | 80.7% | 97.8% | 1.6% |
All figures 2020–24.
Neighborhoods with similar populations: Leaksville, Eden, NC · Surrey Lane, Bergenfield, NJ · Sierra Montana, Surprise, AZ · Riviera East, Houston, TX · Ogden, Vancouver, WA · North Park, Provo, UT · New Irving Park, Greensboro, NC · Arbor Heights, Seattle, WA · Minnehaha, Minneapolis, MN · Milan, New Orleans, LA
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 Neighborhood Nine. 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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