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2026 Compare Cities People:
Sparta, NJ vs Greenwich, CT

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Highlights
- Greenwich is 0% more densely populated than Sparta.
- People are 5.8% less likely to be married in Greenwich.
- The Median Age is 0.5 years older in Greenwich.
 Sparta, NJGreenwich, CTUnited States
 Population  Unlock63,455329,725,481
 Female Population50.8%  Unlock50.5%
 Male Population49.2%  Unlock49.5%
 Median Age  Unlock42.938.4
 space3
 Population - 201019,576  Unlock309,327,143
 Population - 2000  Unlock61,101285,036,114
 Population - 199015,157  Unlock251,960,433
 Pop. 2000 to Now  Unlock2.7%15.6%
 Pop. 1990 to Now22.7%  Unlock30.8%
 space4
 Population Density  Unlock1,330.293.4
 Land Area36.9  Unlock3,531,905.4
 Water Area  Unlock19.6264,836.8
 space
 Est. Total Population By Age
 Sparta, NJGreenwich, CTUnited States
 Age 0 to 45.9%  Unlock5.9%
 Age 5 to 9  Unlock7.7%6.1%
 Age 10 to 147.2%  Unlock6.6%
 Age 15 to 17  Unlock5.4%3.9%
 Age 18 to 203.8%  Unlock4.0%
 Age 21 to 24  Unlock3.4%5.2%
 Age 25 to 348.4%  Unlock13.8%
 Age 35 to 44  Unlock12.6%12.9%
 Age 45 to 5416.1%  Unlock12.6%
 Age 55 to 59  Unlock7.6%6.7%
 Age 60 to 646.5%  Unlock6.3%
 Age 65 to 74  Unlock9.5%9.6%
 Age 75 to 844.1%  Unlock4.5%
 Age 85 and over  Unlock2.2%1.9%
 space1
 Race
 Sparta, NJGreenwich, CTUnited States
 White86.2%  Unlock59.4%
 Black  Unlock2.4%12.2%
 Asian3.8%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races3.0%  Unlock3.2%
 Hispanic  Unlock13.1%18.4%
 space2
 Marriage & Family
 Sparta, NJGreenwich, CTUnited States
 Married Population64.1%  Unlock49.8%
     Currently Married  Unlock59.5%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock39.6%50.2%
 Never Married24.5%  Unlock33.8%
 Divorced  Unlock7.4%10.8%
 Widowed3.9%  Unlock5.6%
 space5
 Household Size  Unlock2.772.60
 Households7,004  Unlock124,010,992
 Family Households  Unlock16,70480,755,759
     Married couple, w/children41.9%  Unlock30.5%
     Married couple, no children  Unlock44.2%42.9%
 Non Family Households1,527  Unlock43,255,233
     Single householder, w/children  Unlock9.7%15.8%
     Single householder, no children2.7%  Unlock10.8%
Voting
Reviews for Sparta    7 Reviews
Gerald · Heber City, UT
Great place to bring up kids
Over 11 years ago

I lived in Sparta for 28 years and only moved away because I retired. Both our daughters went through the entire school system and received a great education. In the  More

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Steve · Sparta, NJ
Living in Sparta
Over 17 years ago

Sparta is a wonderful place to raise a family. Sparta has a lot of organized activities plus an abundance of year- round outdoor activites. It has a number of private  More

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Opined · Sparta, NJ
Living in Sparta
Over 17 years ago

We have enjoyed living in Sparta. It is an aesthetically pleasing area, nice lakes, good restaurants, a very good library and small town atmosphere. It lacks continuing  More

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Reviews for Greenwich    2 Reviews
Christine · Cos Cob, CT
Cost of Living
Over 18 years ago

Cost of Living is very high. If you can afford it, this is a very nice place to  More

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Peter · Greenwich, CT
Greenwich - Nice but you pay
Over 19 years ago

Cost of living, especially utilities is high. Even have a 'special' gas surcharge at the pump for those living (and buying) in lower Fairfield County. At the same time  More

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