Population 5,862 · Census ACS 2020–24
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Population and households in San Mateo
Household size in San Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.05 | 2.62 | 3.07 | 2.68 |
| 2010–14 | 1.90 | 2.50 | 2.93 | 2.73 |
| 2015–19 | 1.79 | 2.30 | 2.79 | 2.71 |
| 2020–24 | 1.74 | 2.19 | 2.54 | 2.65 |
| Change | −0.31 | −0.42 | −0.53 | −0.03 |
Households in San Mateo are small: just 1.74 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. Since 2006–10, household size has dropped from 2.05, a much bigger shift than nationally. San Mateo has the smallest households of any San Juan neighborhood.
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 Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 45.6 | 39.3 | 36.7 | 37.7 |
| 2010–14 | 45.1 | 41.3 | 38.9 | 38.6 |
| 2015–19 | 49.8 | 44.5 | 42.5 | 39.6 |
| 2020–24 | 50.5 | 45.9 | 45.0 | 40.1 |
| Change | +4.9 | +6.6 | +8.3 | +2.3 |
With a median age of 50.5, San Mateo is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has climbed from 45.6, in line with the national trend. Residents skew youngest in the east and 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 San Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.3% | 19.1% | 18.1% | 12.3% |
| 2010–14 | 10.1% | 18.2% | 18.1% | 12.3% |
| 2015–19 | 8.4% | 16.4% | 16.6% | 11.6% |
| 2020–24 | 5.8% | 14.5% | 15.6% | 11.6% |
| Change | −2.5 pts | −4.6 pts | −2.5 pts | −0.6 pts |
Single-parent households are relatively rare in San Mateo: 5.8% of households, against 11.6% nationally. The single-parent share has fallen 2.5 points since 2006–10, a much bigger shift than nationally. San Mateo has the lowest share of single-parent households of any San Juan neighborhood.
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 Mateo
Renters in San Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 50.7% | 43.4% | 27.5% | 33.3% |
| 2010–14 | 47.1% | 45.9% | 30.5% | 35.6% |
| 2015–19 | 48.7% | 46.5% | 31.9% | 36.0% |
| 2020–24 | 49.1% | 47.3% | 32.1% | 34.8% |
| Change | −1.5 pts | +3.9 pts | +4.5 pts | +1.5 pts |
Renting is far more common in San Mateo than nationally: 49.1% of households rent their homes, against 34.8%. Among homeowners, 47.6% have no mortgage at all, above the national share of 39.8%. Rentals cluster in the southwest; owners are most common in the northeast. The renter share has fallen 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 Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 36.8% | 16.3% | 15.6% | 11.4% |
| 2010–14 | 32.3% | 20.7% | 18.7% | 11.4% |
| 2015–19 | 29.4% | 24.4% | 22.1% | 11.1% |
| 2020–24 | 27.9% | 21.6% | 19.1% | 9.6% |
| Change | −9.0 pts | +5.4 pts | +3.5 pts | −1.8 pts |
Vacancy is high in San Mateo: 27.9% 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. Vacancy is down 9.0 points from 2006–10, a much bigger shift than 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 San Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 1965 | 1967 | 1978 | 1974 |
| 2010–14 | 1970 | 1968 | 1980 | 1975 |
| 2015–19 | 1969 | 1968 | 1980 | 1977 |
| 2020–24 | 1978 | 1970 | 1981 | 1980 |
| Change | +13 | +3 | +3 | +6 |
The typical home in San Mateo was built around 1978, about the same vintage as the country's housing overall (1980). Homes here are newer than in San Juan overall, where the median home dates to 1970. Newer construction is concentrated in the northwest, while the southwest has the oldest housing. Few San Juan neighborhoods have newer homes: only two of 24.
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 Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | $542 | $551 | $489 | $965 |
| 2010–14 | $557 | $598 | $528 | $1,040 |
| 2015–19 | $612 | $584 | $553 | $1,213 |
| 2020–24 | $910 | $732 | $658 | $1,571 |
| Change | +$368 | +$181 | +$168 | +$606 |
The median renter in San Mateo pays $910 a month for rent and utilities, well below the national median of $1,571. Even so, rents here are higher than in San Juan overall ($732). Rents are up $368 a month from 2006–10, a 68% jump, faster than rents rose nationally. Only one other San Juan neighborhood has higher 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 San Mateo
Bachelor's degrees in San Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 39.4% | 33.3% | 21.9% | 28.4% |
| 2010–14 | 40.7% | 35.2% | 24.1% | 29.6% |
| 2015–19 | 48.1% | 38.2% | 26.3% | 32.1% |
| 2020–24 | 54.6% | 42.8% | 30.2% | 35.6% |
| Change | +15.1 pts | +9.5 pts | +8.3 pts | +7.2 pts |
College graduates are unusually common in San Mateo: 54.6% 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 has risen 15.1 points since 2006–10, as it has 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 San Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 73.5% | 74.5% | 67.8% | 84.9% |
| 2010–14 | 81.0% | 77.9% | 72.1% | 86.1% |
| 2015–19 | 80.5% | 81.8% | 76.7% | 87.7% |
| 2020–24 | 89.9% | 86.2% | 81.4% | 89.3% |
| Change | +16.5 pts | +11.7 pts | +13.6 pts | +4.3 pts |
About as many adults in San Mateo have finished high school as nationally: 89.9%, against 89.3%. The rate is higher than in San Juan overall (86.2%). Since 2006–10, the share with a diploma has risen 16.5 points, a much bigger shift than 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 San Mateo
| Period | San Mateo | San Juan | Puerto Rico | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.9% | 14.8% | 16.9% | 8.1% |
| 2010–14 | 11.9% | 16.3% | 18.7% | 9.4% |
| 2015–19 | 9.2% | 16.7% | 16.5% | 5.6% |
| 2020–24 | 7.8% | 12.4% | 10.9% | 5.4% |
| Change | −4.0 pts | −2.4 pts | −6.0 pts | −2.7 pts |
Unemployment in San Mateo runs well above the national rate: 7.8% of the labor force was out of work and looking, against 5.4%. Locally, though, the rate is lower than in San Juan as a whole (12.4%). Since 2006–10, unemployment has fallen 4.0 points, in line with the national trend.
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 Mateo 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| San Mateo | 1.74 | 50.5 | 5.8% | 49.1% | 27.9% | 1978 | $910 | 54.6% | 89.9% | 7.8% |
| Machuchal | 1.92 | 51.0 | 13.5% | 50.6% | 33.3% | 1963 | $926 | 44.8% | 85.1% | 9.8% |
| Monte Flores | 2.28 | 37.8 | 18.9% | 60.1% | 26.9% | 1965 | $600 | 28.4% | 79.3% | 18.5% |
| Buena Vista Santurce | 2.20 | 44.5 | 21.5% | 58.6% | 31.0% | 1960 | $513 | 9.1% | 62.4% | 18.8% |
| Urbanizacion Atlantic View | 2.04 | 26.1 | 40.6% | 94.1% | 7.7% | 1949 | $290 | 5.2% | 77.1% | 38.1% |
| Urbanizacion Floral Park | 2.45 | 51.1 | 9.4% | 57.9% | 23.3% | 1967 | $616 | 50.2% | 88.5% | 24.9% |
| Extencion Roosevelt | 1.95 | 52.2 | 12.8% | 49.9% | 12.0% | 1976 | $549 | 63.5% | 92.7% | 5.6% |
| Embalse San Jose | 2.37 | 50.3 | 11.0% | 35.8% | 28.7% | 1963 | $670 | 10.2% | 74.3% | 21.5% |
| Urbanizacion Puerto Nuevo | 2.31 | 45.0 | 15.0% | 51.3% | 22.8% | 1952 | $759 | 29.2% | 82.9% | 10.9% |
| Urbanizacion University Gdns | 2.00 | 46.5 | 15.6% | 63.6% | 18.4% | 1969 | $544 | 55.1% | 91.5% | 15.4% |
| Reparto Metropolitano | 2.28 | 40.1 | 14.0% | 50.3% | 21.9% | 1957 | $732 | 42.1% | 90.3% | 9.7% |
All figures 2020–24.
Neighborhoods with similar populations: Highlands Park, Renton, WA · South Hammond, Hammond, IN · Side Creek, Aurora, CO · Rosedale, Kansas City, KS · Lacy, Santa Ana, CA · Jardines de Country Club, Carolina, PR · Italian Bowery, Chicago, IL · Imperial Point, Fort Lauderdale, FL · Huguenot, Staten Island, NY · South Lorain, Lorain, 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 Mateo. 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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