Population 9,374 · Census ACS 2020–24
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Population and households in Mendham
Household size in Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.87 | 2.79 | 2.77 | 2.68 |
| 2010–14 | 2.89 | 2.85 | 2.82 | 2.73 |
| 2015–19 | 2.80 | 2.82 | 2.78 | 2.71 |
| 2020–24 | 2.68 | 2.79 | 2.76 | 2.65 |
| Change | −0.19 | −0.00 | −0.01 | −0.03 |
Households in Mendham average 2.68 people, about the same as the country as a whole (2.65). The typical household here is smaller than in the New York area as a whole, where it has 2.79 people. Since 2006–10, household size has dropped from 2.87, 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 Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 39.9 | 38.0 | 39.1 | 37.7 |
| 2010–14 | 45.8 | 38.7 | 40.0 | 38.6 |
| 2015–19 | 47.2 | 39.8 | 41.0 | 39.6 |
| 2020–24 | 48.0 | 40.4 | 40.9 | 40.1 |
| Change | +8.1 | +2.4 | +1.8 | +2.3 |
Mendham skews older: half of its residents are older than 48.0, 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 39.9 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 Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.1% | 13.1% | 11.6% | 12.3% |
| 2010–14 | 3.9% | 12.8% | 11.8% | 12.3% |
| 2015–19 | 3.4% | 11.4% | 10.8% | 11.6% |
| 2020–24 | 7.6% | 11.6% | 11.3% | 11.6% |
| Change | +2.4 pts | −1.5 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in Mendham: 7.6% of households, against 11.6% nationally. Since 2006–10, the single-parent share has risen 2.4 points, 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 Mendham
Renters in Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.6% | 47.1% | 33.1% | 33.3% |
| 2010–14 | 11.4% | 48.7% | 35.0% | 35.6% |
| 2015–19 | 9.1% | 48.8% | 36.1% | 36.0% |
| 2020–24 | 10.3% | 48.6% | 36.2% | 34.8% |
| Change | −2.3 pts | +1.5 pts | +3.1 pts | +1.5 pts |
Only 10.3% of households in Mendham rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 30.7% have no mortgage at all, below the national share of 39.8%. Renting is most common in the west and least common in the southeast. The renter share is down 2.3 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 Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.7% | 9.1% | 9.1% | 11.4% |
| 2010–14 | 4.3% | 9.0% | 9.3% | 11.4% |
| 2015–19 | 3.8% | 9.1% | 9.3% | 11.1% |
| 2020–24 | 5.3% | 7.9% | 6.6% | 9.6% |
| Change | −1.4 pts | −1.2 pts | −2.5 pts | −1.8 pts |
Only 5.3% of homes in Mendham are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Since 2006–10, vacancy has edged down 1.4 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 Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 1975 | 1957 | 1965 | 1974 |
| 2010–14 | 1974 | 1958 | 1966 | 1975 |
| 2015–19 | 1974 | 1959 | 1967 | 1977 |
| 2020–24 | 1974 | 1962 | 1969 | 1980 |
| Change | −0 | +5 | +5 | +6 |
Homes in Mendham run a bit older than the national norm, with a median build year of 1974 against 1980. Even so, homes here are newer than in the New York area as a whole, where the median home dates to 1962.
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 Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,695 | $1,268 | $1,246 | $965 |
| 2010–14 | $1,507 | $1,377 | $1,324 | $1,040 |
| 2015–19 | $1,562 | $1,645 | $1,522 | $1,213 |
| 2020–24 | $2,723 | $2,060 | $1,896 | $1,571 |
| Change | +$1,028 | +$792 | +$651 | +$606 |
A typical rental in Mendham costs $2,723 a month with utilities, well above the national median of $1,571. Rents are up $1,028 a month from 2006–10, a 61% jump, roughly in step with the nation. The typical renter here spends 26.5% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. The priciest rents are in the west; the most affordable are in the center.
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 Mendham
Bachelor's degrees in Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 66.4% | 35.0% | 34.7% | 28.4% |
| 2010–14 | 68.1% | 36.7% | 36.4% | 29.6% |
| 2015–19 | 71.5% | 39.9% | 39.6% | 32.1% |
| 2020–24 | 78.1% | 43.6% | 43.4% | 35.6% |
| Change | +11.6 pts | +8.6 pts | +8.6 pts | +7.2 pts |
Mendham is highly educated: about eight in ten adults 25 and older (78.1%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 11.6 points from 2006–10, mirroring the country. Only 19 of the 415 New Jersey cities with 5,000+ people have a higher share of college graduates.
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 Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 95.6% | 83.7% | 87.0% | 84.9% |
| 2010–14 | 97.3% | 84.6% | 88.1% | 86.1% |
| 2015–19 | 98.0% | 86.2% | 89.5% | 87.7% |
| 2020–24 | 98.1% | 86.9% | 90.2% | 89.3% |
| Change | +2.5 pts | +3.3 pts | +3.2 pts | +4.3 pts |
Finishing high school is nearly universal in Mendham: 98.1% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 2.5 points, mirroring the country. Only 27 of the 415 New Jersey cities with 5,000+ people have 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 Mendham
| Period | Mendham | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.8% | 7.9% | 7.9% | 8.1% |
| 2010–14 | 5.9% | 9.5% | 9.8% | 9.4% |
| 2015–19 | 1.8% | 5.7% | 5.6% | 5.6% |
| 2020–24 | 3.2% | 6.9% | 6.4% | 5.4% |
| Change | −0.6 pts | −0.9 pts | −1.5 pts | −2.7 pts |
The job market in Mendham has been strong: just 3.2% of the labor force was out of work and looking, well below the national rate of 5.4%. Only 37 of the 415 New Jersey cities with 5,000+ people have lower unemployment. 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).
Mendham 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Mendham | 2.68 | 48.0 | 7.6% | 10.3% | 5.3% | 1974 | $2,723 | 78.1% | 98.1% | 3.2% |
| Brookside | 3.33 | 35.0 | 9.0% | 8.1% | 3.6% | 1977 | $3,501 | 79.5% | 100.0% | 4.3% |
| Chester | 2.96 | 44.4 | 4.5% | 9.3% | 4.4% | 1978 | $1,991 | 68.6% | 98.5% | 7.0% |
| Randolph | 3.00 | 39.8 | 6.9% | 22.3% | 3.8% | 1979 | $1,750 | 68.2% | 95.1% | 4.7% |
| Bernardsville | 2.94 | 41.6 | 5.7% | 5.2% | 6.6% | 1961 | $2,257 | 75.6% | 97.6% | 4.5% |
| Succasunna | 2.97 | 44.8 | 8.8% | 4.3% | 3.7% | 1969 | $2,490 | 50.7% | 96.6% | 4.3% |
| Peapack and Gladstone | 2.53 | 45.1 | 4.1% | 19.1% | 6.4% | 1972 | $1,855 | 71.3% | 97.9% | 3.3% |
| Far Hills | 2.71 | 47.7 | 4.9% | 11.9% | 6.1% | 1983 | $2,815 | 72.0% | 98.0% | 4.5% |
| Madisonville | 2.46 | 50.4 | 4.0% | 29.2% | 1.8% | 1969 | $869 | 69.5% | 93.4% | 6.9% |
| Morristown | 2.53 | 41.1 | 9.2% | 37.2% | 4.1% | 1972 | $2,544 | 65.3% | 93.7% | 4.5% |
| Mine Hill | 2.72 | 42.7 | 11.4% | 12.2% | 5.2% | 1968 | $1,806 | 46.2% | 95.7% | 4.6% |
All figures 2020–24.
Cities with similar populations: Abita Springs, LA · Acushnet, MA · Adkins, TX · Aibonito, PR · Airmont, NY · Albion, NY · Bloomingdale, TN · Oroville East, CA · Pecos, TX · Pearsall, TX
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 Mendham. 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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