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2025 Compare Cities People:
Union, KY vs Mars, PA

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Highlights
- Mars is 0% more densely populated than Union.
- People are 58.3% less likely to be married in Mars.
- The Median Age is 18.7 years older in Mars.
 Union, KYMars, PAUnited States
 Population  Unlock1,310329,725,481
 Female Population48.9%  Unlock50.5%
 Male Population51.1%  Unlock49.5%
 Median Age  Unlock55.438.4
 space3
 Population - 20105,376  Unlock309,327,143
 Population - 2000  Unlock1,746285,036,114
 Population - 19901,001  Unlock251,960,433
 Pop. 2000 to Now  Unlock-7.9%15.6%
 Pop. 1990 to Now511.0%  Unlock30.8%
 space4
 Population Density  Unlock2,781.393.4
 Land Area3.3  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Union, KYMars, PAUnited States
 Age 0 to 46.6%  Unlock5.9%
 Age 5 to 9  Unlock3.8%6.1%
 Age 10 to 146.8%  Unlock6.6%
 Age 15 to 17  Unlock2.7%3.9%
 Age 18 to 204.0%  Unlock4.0%
 Age 21 to 24  Unlock7.1%5.2%
 Age 25 to 348.6%  Unlock13.8%
 Age 35 to 44  Unlock6.7%12.9%
 Age 45 to 5417.2%  Unlock12.6%
 Age 55 to 59  Unlock12.7%6.7%
 Age 60 to 647.0%  Unlock6.3%
 Age 65 to 74  Unlock11.6%9.6%
 Age 75 to 841.4%  Unlock4.5%
 Age 85 and over  Unlock4.5%1.9%
 space1
 Race
 Union, KYMars, PAUnited States
 White90.3%  Unlock59.4%
 Black  Unlock2.4%12.2%
 Asian2.5%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races4.1%  Unlock3.2%
 Hispanic  Unlock2.7%18.4%
 space2
 Marriage & Family
 Union, KYMars, PAUnited States
 Married Population69.8%  Unlock49.8%
     Currently Married  Unlock29.1%48.0%
 Married but Separated2.4%  Unlock1.8%
 Single Population  Unlock70.9%50.2%
 Never Married23.1%  Unlock33.8%
 Divorced  Unlock19.9%10.8%
 Widowed0.8%  Unlock5.6%
 space5
 Household Size  Unlock1.982.60
 Households2,213  Unlock124,010,992
 Family Households  Unlock26780,755,759
     Married couple, w/children49.3%  Unlock30.5%
     Married couple, no children  Unlock33.7%42.9%
 Non Family Households140  Unlock43,255,233
     Single householder, w/children  Unlock9.0%15.8%
     Single householder, no children2.9%  Unlock10.8%
Voting
Reviews for Union    1 Reviews
Susan · Union, KY
Low Cost of Living, Friendly People, Close to Cinc
Over 16 years ago

I love living in Northern KY, especially the city of Union. Real estate is very inexpensive, you can get a lot of house for your money or get a smaller house in a great  More

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Reviews for Mars    1 Reviews
Janet · Mars, PA
Not so small.
Over 16 years ago

It's a small town but growing. The scenery and weather are nice. The location is just about right. It's not far from Pittsburgh or other cities, towns and activities.  More

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Learn More About Union, Kentucky
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Learn More About Mars, Pennsylvania
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