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2026 Compare Cities People:
Buffalo Grove, IL vs St. Augustine Beach, FL

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Highlights
- St. Augustine Beach is 0% more densely populated than Buffalo Grove.
- People are 16.8% less likely to be married in St. Augustine Beach.
- The Median Age is 8.0 years older in St. Augustine Beach.
 Buffalo Grove, ILSt. Augustine Beach, FLUnited States
 Population  Unlock6,688329,725,481
 Female Population52.4%  Unlock50.5%
 Male Population47.6%  Unlock49.5%
 Median Age  Unlock49.238.4
 space3
 Population - 201041,543  Unlock309,327,143
 Population - 2000  Unlock4,683285,036,114
 Population - 199036,427  Unlock251,960,433
 Pop. 2000 to Now  Unlock52.4%15.6%
 Pop. 1990 to Now10.3%  Unlock30.8%
 space4
 Population Density  Unlock3,162.293.4
 Land Area9.5  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Buffalo Grove, ILSt. Augustine Beach, FLUnited States
 Age 0 to 46.0%  Unlock5.9%
 Age 5 to 9  Unlock3.3%6.1%
 Age 10 to 147.1%  Unlock6.6%
 Age 15 to 17  Unlock3.8%3.9%
 Age 18 to 202.9%  Unlock4.0%
 Age 21 to 24  Unlock5.5%5.2%
 Age 25 to 3410.0%  Unlock13.8%
 Age 35 to 44  Unlock16.7%12.9%
 Age 45 to 5415.5%  Unlock12.6%
 Age 55 to 59  Unlock7.5%6.7%
 Age 60 to 647.1%  Unlock6.3%
 Age 65 to 74  Unlock14.2%9.6%
 Age 75 to 842.9%  Unlock4.5%
 Age 85 and over  Unlock1.9%1.9%
 space1
 Race
 Buffalo Grove, ILSt. Augustine Beach, FLUnited States
 White63.2%  Unlock59.4%
 Black  Unlock0.1%12.2%
 Asian24.0%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races2.6%  Unlock3.2%
 Hispanic  Unlock4.0%18.4%
 space2
 Marriage & Family
 Buffalo Grove, ILSt. Augustine Beach, FLUnited States
 Married Population63.1%  Unlock49.8%
     Currently Married  Unlock51.7%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock47.6%50.2%
 Never Married25.1%  Unlock33.8%
 Divorced  Unlock14.2%10.8%
 Widowed3.9%  Unlock5.6%
 space5
 Household Size  Unlock2.392.60
 Households15,982  Unlock124,010,992
 Family Households  Unlock1,68180,755,759
     Married couple, w/children42.1%  Unlock30.5%
     Married couple, no children  Unlock55.3%42.9%
 Non Family Households4,076  Unlock43,255,233
     Single householder, w/children  Unlock6.9%15.8%
     Single householder, no children5.6%  Unlock10.8%
Voting
Reviews for Buffalo Grove    7 Reviews
Linda · Buffalo Grove, IL
Outdoor recreation
Over 12 years ago

Numerous forest preserve areas with walking paths and places to play sports (baseball, soccer, football). Close driving distance to Lake Michigan and several  More

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jun · Buffalo Grove, IL
nice town to raise a family
Over 13 years ago

nice town to raise a  More

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Bp · Buffalo Grove, IL
Bison country
Over 18 years ago

No place is perfect however BG is at or near the top especially in schooling and crime prevention. Numerous parks and biking paths. A great place to raise a family safe  More

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Reviews for St. Augustine Beach    1 Reviews
Harry · St. Augustine, FL
Attractive, but Conservative
Over 20 years ago

St. Augustine boasts a lovely historic town (the oldest European continuously occupied settlement, 1565) and attractive beaches. It's a fun tourist spot. However the  More

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