Population 21,214 · Census ACS 2020–24
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Population and households in Mamaroneck
Household size in Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.71 | 2.79 | 2.68 | 2.68 |
| 2010–14 | 2.63 | 2.85 | 2.72 | 2.73 |
| 2015–19 | 2.81 | 2.82 | 2.69 | 2.71 |
| 2020–24 | 2.81 | 2.79 | 2.65 | 2.65 |
| Change | +0.10 | −0.00 | −0.03 | −0.03 |
Households in Mamaroneck average 2.81 people, a bit above the national 2.65, so families with children are somewhat more common here. Since 2006–10, household size has climbed from 2.71, even as the national average fell. Households are largest in the northwest and smallest in the south.
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 Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 40.7 | 38.0 | 38.3 | 37.7 |
| 2010–14 | 42.2 | 38.7 | 39.0 | 38.6 |
| 2015–19 | 41.8 | 39.8 | 40.2 | 39.6 |
| 2020–24 | 40.4 | 40.4 | 40.8 | 40.1 |
| Change | −0.3 | +2.4 | +2.5 | +2.3 |
At 40.4, the median age in Mamaroneck is close to the national median of 40.1, so its age mix looks much like the country's. The youngest areas are in the north, the oldest in the south.
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 Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.6% | 13.1% | 13.1% | 12.3% |
| 2010–14 | 8.8% | 12.8% | 12.7% | 12.3% |
| 2015–19 | 7.9% | 11.4% | 11.6% | 11.6% |
| 2020–24 | 10.8% | 11.6% | 11.6% | 11.6% |
| Change | +4.2 pts | −1.5 pts | −1.5 pts | −0.6 pts |
Single parents head just over one in ten households in Mamaroneck (10.8%), close to the national share of 11.6%. The single-parent share has risen 4.2 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 Mamaroneck
Renters in Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 34.7% | 47.1% | 44.8% | 33.3% |
| 2010–14 | 39.3% | 48.7% | 46.2% | 35.6% |
| 2015–19 | 39.5% | 48.8% | 46.2% | 36.0% |
| 2020–24 | 41.8% | 48.6% | 45.7% | 34.8% |
| Change | +7.1 pts | +1.5 pts | +0.9 pts | +1.5 pts |
Renting is more common in Mamaroneck than nationally: 41.8% of households rent their homes, against 34.8% for the U.S. Still, renters make up a smaller share here than in the New York area as a whole (48.6%). Among homeowners, 32.9% have no mortgage at all, below the national share of 39.8%. The renter share is up 7.1 points from 2006–10, 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 Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.0% | 9.1% | 10.3% | 11.4% |
| 2010–14 | 7.9% | 9.0% | 10.4% | 11.4% |
| 2015–19 | 4.8% | 9.1% | 11.0% | 11.1% |
| 2020–24 | 9.3% | 7.9% | 9.7% | 9.6% |
| Change | −0.6 pts | −1.2 pts | −0.6 pts | −1.8 pts |
About as many homes sit empty in Mamaroneck as nationally: 9.3%, against 9.6%. Since 2006–10, vacancy has edged down 0.6 points, 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 Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 1952 | 1957 | 1956 | 1974 |
| 2010–14 | 1951 | 1958 | 1957 | 1975 |
| 2015–19 | 1952 | 1959 | 1958 | 1977 |
| 2020–24 | 1954 | 1962 | 1961 | 1980 |
| Change | +2 | +5 | +5 | +6 |
Mamaroneck is a place of older homes: half were built before 1954, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Newer construction is concentrated in the west, while the center has the oldest housing.
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 Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,514 | $1,268 | $1,095 | $965 |
| 2010–14 | $1,615 | $1,377 | $1,201 | $1,040 |
| 2015–19 | $1,992 | $1,645 | $1,426 | $1,213 |
| 2020–24 | $2,211 | $2,060 | $1,794 | $1,571 |
| Change | +$697 | +$792 | +$698 | +$606 |
A typical rental in Mamaroneck costs $2,211 a month with utilities, well above the national median of $1,571. Rents are up $697 a month from 2006–10, a 46% rise, a slower climb than the nation's. Rent takes 35.9% 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 northwest.
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 Mamaroneck
Bachelor's degrees in Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 50.6% | 35.0% | 31.9% | 28.4% |
| 2010–14 | 52.4% | 36.7% | 33.4% | 29.6% |
| 2015–19 | 54.7% | 39.9% | 36.2% | 32.1% |
| 2020–24 | 59.5% | 43.6% | 39.8% | 35.6% |
| Change | +8.9 pts | +8.6 pts | +8.0 pts | +7.2 pts |
College graduates are unusually common in Mamaroneck: 59.5% 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 8.9 points from 2006–10, mirroring the country.
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 Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 89.5% | 83.7% | 84.0% | 84.9% |
| 2010–14 | 88.5% | 84.6% | 84.9% | 86.1% |
| 2015–19 | 88.3% | 86.2% | 86.5% | 87.7% |
| 2020–24 | 89.0% | 86.9% | 87.3% | 89.3% |
| Change | −0.6 pts | +3.3 pts | +3.3 pts | +4.3 pts |
About as many adults in Mamaroneck have finished high school as nationally: 89.0%, against 89.3%. The rate is higher than in the New York area as a whole (86.9%). The share with a diploma is down 0.6 points from 2006–10, even as the national rate rose.
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 Mamaroneck
| Period | Mamaroneck | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.4% | 7.9% | 7.7% | 8.1% |
| 2010–14 | 8.4% | 9.5% | 9.2% | 9.4% |
| 2015–19 | 4.1% | 5.7% | 5.7% | 5.6% |
| 2020–24 | 4.4% | 6.9% | 6.6% | 5.4% |
| Change | −2.0 pts | −0.9 pts | −1.2 pts | −2.7 pts |
Jobs have been a little easier to find in Mamaroneck than nationally: unemployment was 4.4%, against 5.4%. Unemployment is down 2.0 points from 2006–10, mirroring the country. 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).
Mamaroneck 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Mamaroneck | 2.81 | 40.4 | 10.8% | 41.8% | 9.3% | 1954 | $2,211 | 59.5% | 89.0% | 4.4% |
| Larchmont | 2.70 | 40.7 | 8.7% | 21.8% | 6.6% | 1942 | $2,400 | 83.7% | 98.5% | 5.9% |
| Rye | 2.95 | 44.2 | 8.3% | 29.5% | 9.3% | 1958 | $2,740 | 81.1% | 96.5% | 5.7% |
| Harrison | 2.96 | 40.4 | 9.5% | 41.4% | 7.5% | 1962 | $2,768 | 58.8% | 93.2% | 4.5% |
| New Rochelle | 2.68 | 42.2 | 8.8% | 47.6% | 4.5% | 1955 | $2,027 | 50.4% | 87.3% | 6.2% |
| Eastchester | 2.75 | 45.6 | 2.5% | 20.1% | 5.8% | 1952 | $2,289 | 67.0% | 96.3% | 2.5% |
| Scarsdale | 3.13 | 41.3 | 5.0% | 8.5% | 7.3% | 1954 | $3,155 | 88.4% | 98.0% | 4.2% |
| Tuckahoe | 2.42 | 45.9 | 5.2% | 44.1% | 6.5% | 1963 | $2,231 | 61.7% | 95.0% | 2.1% |
| Pelham | 3.20 | 39.6 | 11.2% | 32.7% | 7.4% | 1939 | $2,503 | 71.4% | 95.1% | 5.3% |
| Port Chester | 2.92 | 40.6 | 16.4% | 53.7% | 4.2% | 1956 | $2,121 | 35.4% | 77.8% | 5.5% |
| Bronxville | 2.37 | 41.4 | 5.4% | 24.1% | 6.2% | 1947 | $2,410 | 62.9% | 93.6% | 6.2% |
All figures 2020–24.
Cities with similar populations: South Burlington, VT · Essex, VT · Fayetteville, TN · Ferndale, MI · La Vista, NE · Smithfield, NC · Socastee, SC · Somerville, NJ · South Amboy, NJ · Enumclaw, WA
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 Mamaroneck. 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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