2025 Compare Cities People:
Ballwin, MO vs Defiance, MO

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Highlights
- Defiance is 0% more densely populated than Ballwin.
- People are 100.0% less likely to be married in Defiance.
- The Median Age is 17.5 years older in Defiance.
 Ballwin, MODefiance, MOUnited States
 Population  Unlock51329,725,481
 Female Population50.9%  Unlock50.5%
 Male Population49.1%  Unlock49.5%
 Median Age  Unlock60.538.4
 space3
 Population - 201030,424  Unlock309,327,143
 Population - 2000  Unlock150285,036,114
 Population - 199021,816  Unlock251,960,433
 Pop. 2000 to Now  Unlock-16.0%15.6%
 Pop. 1990 to Now37.9%  Unlock30.8%
 space4
 Population Density  Unlock50.493.4
 Land Area9.0  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Ballwin, MODefiance, MOUnited States
 Age 0 to 46.0%  Unlock5.9%
 Age 5 to 9  Unlock0.0%6.1%
 Age 10 to 146.0%  Unlock6.6%
 Age 15 to 17  Unlock0.0%3.9%
 Age 18 to 202.9%  Unlock4.0%
 Age 21 to 24  Unlock0.0%5.2%
 Age 25 to 3411.6%  Unlock13.8%
 Age 35 to 44  Unlock31.4%12.9%
 Age 45 to 5413.3%  Unlock12.6%
 Age 55 to 59  Unlock0.0%6.7%
 Age 60 to 647.6%  Unlock6.3%
 Age 65 to 74  Unlock33.3%9.6%
 Age 75 to 845.7%  Unlock4.5%
 Age 85 and over  Unlock0.0%1.9%
 space1
 Race
 Ballwin, MODefiance, MOUnited States
 White81.9%  Unlock59.4%
 Black  Unlock0.0%12.2%
 Asian6.5%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races6.9%  Unlock3.2%
 Hispanic  Unlock0.0%18.4%
 space2
 Marriage & Family
 Ballwin, MODefiance, MOUnited States
 Married Population62.1%  Unlock49.8%
     Currently Married  Unlock0.0%48.0%
 Married but Separated1.2%  Unlock1.8%
 Single Population  Unlock100.0%50.2%
 Never Married23.8%  Unlock33.8%
 Divorced  Unlock84.3%10.8%
 Widowed6.2%  Unlock5.6%
 space5
 Household Size  Unlock1.192.60
 Households12,071  Unlock124,010,992
 Family Households  Unlock080,755,759
     Married couple, w/children38.0%  Unlock30.5%
     Married couple, no children  Unlock0.0%42.9%
 Non Family Households3,500  Unlock43,255,233
     Single householder, w/children  Unlock0.0%15.8%
     Single householder, no children5.8%  Unlock10.8%
Reviews for Ballwin    8 Reviews

Over 7 years ago

August gets to 113 degrees with 98 % humidity. When you get out of the shower, you are wet from sweat! My chest whistles trying to get air. There is a January thaw which  More

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I am originally from the city of St. Louis. For the past twenty years, I have resided in west St. Louis county. I live in an established subdivision where the  More

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Over 12 years ago

Summers can be very nice at times, does not usually last for long. Our spring turns hot as summer rolls in and we can have long a stretch of above 90 to peaks of  More

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Reviews for Defiance    1 Reviews

The sublime suburb of Defiance is a hidden gem within the vast realm of St. Charles County. It is known as the elite southwest section of the County where homeowners  More

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