2025 Compare Cities People:
Decatur, GA vs San Marcos, TX

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Highlights
- San Marcos is 0% more densely populated than Decatur.
- People are 52.3% less likely to be married in San Marcos.
- The Median Age is 13.7 years younger in San Marcos.
 Decatur, GASan Marcos, TXUnited States
 Population  Unlock64,812329,725,481
 Female Population52.6%  Unlock50.5%
 Male Population47.4%  Unlock49.5%
 Median Age  Unlock24.938.4
 space3
 Population - 201019,700  Unlock309,327,143
 Population - 2000  Unlock34,733285,036,114
 Population - 199017,336  Unlock251,960,433
 Pop. 2000 to Now  Unlock91.0%15.6%
 Pop. 1990 to Now48.0%  Unlock30.8%
 space4
 Population Density  Unlock1,905.393.4
 Land Area4.4  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Decatur, GASan Marcos, TXUnited States
 Age 0 to 46.9%  Unlock5.9%
 Age 5 to 9  Unlock3.3%6.1%
 Age 10 to 1410.2%  Unlock6.6%
 Age 15 to 17  Unlock2.4%3.9%
 Age 18 to 203.3%  Unlock4.0%
 Age 21 to 24  Unlock20.5%5.2%
 Age 25 to 347.6%  Unlock13.8%
 Age 35 to 44  Unlock9.6%12.9%
 Age 45 to 5416.0%  Unlock12.6%
 Age 55 to 59  Unlock3.4%6.7%
 Age 60 to 645.3%  Unlock6.3%
 Age 65 to 74  Unlock6.1%9.6%
 Age 75 to 843.0%  Unlock4.5%
 Age 85 and over  Unlock1.3%1.9%
 space1
 Race
 Decatur, GASan Marcos, TXUnited States
 White66.9%  Unlock59.4%
 Black  Unlock6.6%12.2%
 Asian3.9%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock1.4%0.4%
 Two or More Races6.5%  Unlock3.2%
 Hispanic  Unlock40.9%18.4%
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 Marriage & Family
 Decatur, GASan Marcos, TXUnited States
 Married Population58.3%  Unlock49.8%
     Currently Married  Unlock26.2%48.0%
 Married but Separated1.6%  Unlock1.8%
 Single Population  Unlock72.2%50.2%
 Never Married27.6%  Unlock33.8%
 Divorced  Unlock8.1%10.8%
 Widowed4.6%  Unlock5.6%
 space5
 Household Size  Unlock2.292.60
 Households8,906  Unlock124,010,992
 Family Households  Unlock11,05280,755,759
     Married couple, w/children52.8%  Unlock30.5%
     Married couple, no children  Unlock40.8%42.9%
 Non Family Households3,057  Unlock43,255,233
     Single householder, w/children  Unlock16.7%15.8%
     Single householder, no children4.2%  Unlock10.8%
Reviews for Decatur    9 Reviews

I have lived in this city for over a year. Even though the area I live in is quiet and the neighbors are nice, the crime that happens around my area is terrible. It  More

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Over 14 years ago

Depending on where you live in Decatur, you will have a different view of the city. Here in Georgia, you have the peculiar situation of having both a city of Decatur and  More

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Over 15 years ago

I am currently living in Memphis, Tn. I am considering moving to Georgia! How is the job market there, and which cities do you recommend to consider buying a  More

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Reviews for San Marcos    6 Reviews

An area with so much potential and existing natural beauty.Sadly bad urban planning is clearly obvious.Looks like fun for tens of thousands of students.However for the  More

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Over 16 years ago

San Marcos has the most beautiful people and places that I have ever seen throughout my travels. I love this city so much that I decided to settle down here and start a  More

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Over 17 years ago

I spent several summers and a couple winters in San Marcos during my formidable years and really have to tell those interested about what a nice town it is. The best  More

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