Population 31,839 · Census ACS 2020–24
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Population and households in San Sebastian
Household size in San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 3.38 | 3.07 | 2.68 |
| 2010–14 | 3.10 | 2.93 | 2.73 |
| 2015–19 | 2.74 | 2.79 | 2.71 |
| 2020–24 | 2.71 | 2.54 | 2.65 |
| Change | −0.67 | −0.53 | −0.03 |
Households in San Sebastian average 2.71 people, about the same as the country as a whole (2.65). The typical household here is bigger than in Puerto Rico overall, where it has 2.54 people. Household size has dropped from 3.38 in 2006–10, 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 San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 38.7 | 36.7 | 37.7 |
| 2010–14 | 41.6 | 38.9 | 38.6 |
| 2015–19 | 45.3 | 42.5 | 39.6 |
| 2020–24 | 47.2 | 45.0 | 40.1 |
| Change | +8.5 | +8.3 | +2.3 |
San Sebastian skews older: half of its residents are older than 47.2, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 38.7 in 2006–10, a much bigger shift than nationally.
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 San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 13.4% | 18.1% | 12.3% |
| 2010–14 | 15.6% | 18.1% | 12.3% |
| 2015–19 | 12.9% | 16.6% | 11.6% |
| 2020–24 | 12.0% | 15.6% | 11.6% |
| Change | −1.4 pts | −2.5 pts | −0.6 pts |
Single parents head about one in eight households in San Sebastian (12.0%), close to the national share of 11.6%. Single parents are less common here than in Puerto Rico overall (15.6%). The single-parent share is down 1.4 points from 2006–10, in line with the national trend.
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 San Sebastian
Renters in San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 27.9% | 27.5% | 33.3% |
| 2010–14 | 36.7% | 30.5% | 35.6% |
| 2015–19 | 37.0% | 31.9% | 36.0% |
| 2020–24 | 26.4% | 32.1% | 34.8% |
| Change | −1.5 pts | +4.5 pts | +1.5 pts |
Just over a quarter of households in San Sebastian rent their homes (26.4%), below the national share of 34.8%; the rest own. About seven in ten owners (71.6%) have paid off their mortgages, well above the national share of 39.8%. Rentals cluster in the west; owners are most common in the southeast. The renter share has edged down 1.5 points since 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 San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 21.3% | 15.6% | 11.4% |
| 2010–14 | 22.9% | 18.7% | 11.4% |
| 2015–19 | 26.5% | 22.1% | 11.1% |
| 2020–24 | 22.6% | 19.1% | 9.6% |
| Change | +1.2 pts | +3.5 pts | −1.8 pts |
Vacant homes make up 22.6% of the housing in San Sebastian, 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. Since 2006–10, vacancy has edged up 1.2 points, even as the national rate fell.
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 San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 1981 | 1978 | 1974 |
| 2010–14 | 1983 | 1980 | 1975 |
| 2015–19 | 1981 | 1980 | 1977 |
| 2020–24 | 1982 | 1981 | 1980 |
| Change | +1 | +3 | +6 |
Homes in San Sebastian are about the same age as the nation's housing: the median home was built in 1982, versus 1980 nationally. The newest homes are mostly in the southeast, the oldest in the center.
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 San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | $380 | $489 | $965 |
| 2010–14 | $383 | $528 | $1,040 |
| 2015–19 | $424 | $553 | $1,213 |
| 2020–24 | $526 | $658 | $1,571 |
| Change | +$147 | +$168 | +$606 |
The median renter in San Sebastian pays $526 a month for rent and utilities, well below the national median of $1,571. Rents are up $147 a month from 2006–10, a 39% rise, a slower climb than the nation's. Rent takes 33.5% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Renters on a budget will find the lowest rents in the northeast; the highest are in the west.
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 San Sebastian
Bachelor's degrees in San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 15.3% | 21.9% | 28.4% |
| 2010–14 | 17.4% | 24.1% | 29.6% |
| 2015–19 | 19.9% | 26.3% | 32.1% |
| 2020–24 | 21.9% | 30.2% | 35.6% |
| Change | +6.5 pts | +8.3 pts | +7.2 pts |
College degrees are relatively uncommon in San Sebastian: 21.9% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree is up 6.5 points from 2006–10, in line with the national trend. College graduates are most concentrated in the northwest and least in the southwest.
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 San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 53.1% | 67.8% | 84.9% |
| 2010–14 | 58.0% | 72.1% | 86.1% |
| 2015–19 | 69.3% | 76.7% | 87.7% |
| 2020–24 | 73.0% | 81.4% | 89.3% |
| Change | +19.9 pts | +13.6 pts | +4.3 pts |
More than a quarter of adults in San Sebastian never finished high school, well above the national share: only 73.0% have a diploma or equivalent, against 89.3% nationally. The share with a diploma has risen 19.9 points since 2006–10, a much bigger shift than nationally. San Sebastian has a lower share of high school graduates than at least four in five Puerto Rico cities.
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 San Sebastian
| Period | San Sebastian | Puerto Rico | U.S. |
|---|---|---|---|
| 2006–10 | 23.7% | 16.9% | 8.1% |
| 2010–14 | 30.1% | 18.7% | 9.4% |
| 2015–19 | 20.0% | 16.5% | 5.6% |
| 2020–24 | 12.8% | 10.9% | 5.4% |
| Change | −10.9 pts | −6.0 pts | −2.7 pts |
Finding work has been harder in San Sebastian: 12.8% of the labor force was out of work and looking, well above the national rate of 5.4%. Unemployment is down 10.9 points from 2006–10, a much bigger shift than nationally. 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).
San Sebastian 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| San Sebastian | 2.71 | 47.2 | 12.0% | 26.4% | 22.6% | 1982 | $526 | 21.9% | 73.0% | 12.8% |
| Moca | 2.69 | 43.8 | 15.0% | 36.1% | 19.6% | 1988 | $537 | 24.7% | 73.0% | 16.5% |
| Las Marias | 2.74 | 47.5 | 13.9% | 25.2% | 27.4% | 1982 | $428 | 15.0% | 66.9% | 7.9% |
| Lares | 2.59 | 45.3 | 15.6% | 33.8% | 17.5% | 1986 | $525 | 21.2% | 69.4% | 11.6% |
| Quebradillas | 2.71 | 45.9 | 13.4% | 29.2% | 23.0% | 1985 | $602 | 19.5% | 73.5% | 7.8% |
| Anasco | 2.62 | 46.7 | 11.9% | 27.5% | 23.6% | 1980 | $573 | 20.8% | 72.2% | 5.1% |
| Isabela | 2.92 | 44.6 | 12.0% | 32.9% | 29.7% | 1984 | $590 | 21.9% | 77.3% | 11.0% |
| Camuy | 2.69 | 44.6 | 10.4% | 25.6% | 13.4% | 1986 | $621 | 25.2% | 77.4% | 2.6% |
| San Antonio | 2.62 | 47.9 | 14.5% | 32.3% | 24.3% | 1990 | $665 | 27.1% | 79.6% | 10.1% |
| Angeles | 2.66 | 49.0 | 11.0% | 32.3% | 18.8% | 1987 | $466 | 24.3% | 69.0% | 17.2% |
| Aguada | 2.92 | 46.3 | 11.1% | 30.7% | 26.6% | 1981 | $484 | 25.9% | 75.1% | 6.0% |
All figures 2020–24.
Cities with similar populations: Lewis Center, OH · Reidsville, NC · Quakertown, PA · Pullman, WA · New City, NY · Needham, MA · Naugatuck, CT · Mount Dora, FL · Mercedes, TX · Marysville, OH
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 San Sebastian. 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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