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2025 Compare Cities People:
Demarest, NJ vs Mamaroneck, NY

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Highlights
- Mamaroneck is 0% more densely populated than Demarest.
- People are 20.3% less likely to be married in Mamaroneck.
- The Median Age is 6.1 years younger in Mamaroneck.
 Demarest, NJMamaroneck, NYUnited States
 Population  Unlock31,381329,725,481
 Female Population49.0%  Unlock50.5%
 Male Population51.1%  Unlock49.5%
 Median Age  Unlock38.938.4
 space3
 Population - 20104,930  Unlock309,327,143
 Population - 2000  Unlock28,967285,036,114
 Population - 19904,800  Unlock251,960,433
 Pop. 2000 to Now  Unlock1.3%15.6%
 Pop. 1990 to Now0.8%  Unlock30.8%
 space4
 Population Density  Unlock4,716.193.4
 Land Area2.1  Unlock3,531,905.4
 Water Area  Unlock7.4264,836.8
 space
 Est. Total Population By Age
 Demarest, NJMamaroneck, NYUnited States
 Age 0 to 43.4%  Unlock5.9%
 Age 5 to 9  Unlock9.1%6.1%
 Age 10 to 148.9%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 204.7%  Unlock4.0%
 Age 21 to 24  Unlock2.5%5.2%
 Age 25 to 342.1%  Unlock13.8%
 Age 35 to 44  Unlock16.4%12.9%
 Age 45 to 5416.1%  Unlock12.6%
 Age 55 to 59  Unlock5.7%6.7%
 Age 60 to 649.0%  Unlock6.3%
 Age 65 to 74  Unlock7.5%9.6%
 Age 75 to 841.7%  Unlock4.5%
 Age 85 and over  Unlock2.2%1.9%
 space1
 Race
 Demarest, NJMamaroneck, NYUnited States
 White67.3%  Unlock59.4%
 Black  Unlock2.6%12.2%
 Asian27.2%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock1.0%0.4%
 Two or More Races1.5%  Unlock3.2%
 Hispanic  Unlock17.4%18.4%
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 Marriage & Family
 Demarest, NJMamaroneck, NYUnited States
 Married Population76.0%  Unlock49.8%
     Currently Married  Unlock57.3%48.0%
 Married but Separated0.8%  Unlock1.8%
 Single Population  Unlock39.5%50.2%
 Never Married16.3%  Unlock33.8%
 Divorced  Unlock6.1%10.8%
 Widowed3.5%  Unlock5.6%
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 Household Size  Unlock2.952.60
 Households1,656  Unlock124,010,992
 Family Households  Unlock7,94480,755,759
     Married couple, w/children45.5%  Unlock30.5%
     Married couple, no children  Unlock37.2%42.9%
 Non Family Households187  Unlock43,255,233
     Single householder, w/children  Unlock9.4%15.8%
     Single householder, no children5.9%  Unlock10.8%
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Learn More About Demarest, New Jersey
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