2025 Compare Cities People:
Gaithersburg, MD vs Kildeer, IL

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Highlights
- Kildeer is 0% more densely populated than Gaithersburg.
- People are 41.4% more likely to be married in Kildeer.
- The Median Age is 6.0 years older in Kildeer.
 Gaithersburg, MDKildeer, ILUnited States
 Population  Unlock4,093329,725,481
 Female Population51.4%  Unlock50.5%
 Male Population48.6%  Unlock49.5%
 Median Age  Unlock43.638.4
 space3
 Population - 201060,178  Unlock309,327,143
 Population - 2000  Unlock3,460285,036,114
 Population - 199039,542  Unlock251,960,433
 Pop. 2000 to Now  Unlock15.4%15.6%
 Pop. 1990 to Now71.3%  Unlock30.8%
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 Population Density  Unlock967.693.4
 Land Area10.3  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
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 Est. Total Population By Age
 Gaithersburg, MDKildeer, ILUnited States
 Age 0 to 47.0%  Unlock5.9%
 Age 5 to 9  Unlock6.3%6.1%
 Age 10 to 146.2%  Unlock6.6%
 Age 15 to 17  Unlock7.3%3.9%
 Age 18 to 203.4%  Unlock4.0%
 Age 21 to 24  Unlock4.0%5.2%
 Age 25 to 3413.9%  Unlock13.8%
 Age 35 to 44  Unlock12.9%12.9%
 Age 45 to 5413.7%  Unlock12.6%
 Age 55 to 59  Unlock9.8%6.7%
 Age 60 to 645.7%  Unlock6.3%
 Age 65 to 74  Unlock8.4%9.6%
 Age 75 to 843.3%  Unlock4.5%
 Age 85 and over  Unlock0.5%1.9%
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 Race
 Gaithersburg, MDKildeer, ILUnited States
 White33.7%  Unlock59.4%
 Black  Unlock0.0%12.2%
 Asian20.4%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races4.2%  Unlock3.2%
 Hispanic  Unlock5.1%18.4%
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 Marriage & Family
 Gaithersburg, MDKildeer, ILUnited States
 Married Population53.4%  Unlock49.8%
     Currently Married  Unlock74.7%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock24.5%50.2%
 Never Married32.6%  Unlock33.8%
 Divorced  Unlock1.9%10.8%
 Widowed4.2%  Unlock5.6%
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 Household Size  Unlock3.112.60
 Households25,945  Unlock124,010,992
 Family Households  Unlock1,21280,755,759
     Married couple, w/children38.0%  Unlock30.5%
     Married couple, no children  Unlock44.6%42.9%
 Non Family Households8,728  Unlock43,255,233
     Single householder, w/children  Unlock2.1%15.8%
     Single householder, no children12.4%  Unlock10.8%
Reviews for Gaithersburg    10 Reviews

We recently sold our family home of 20+ years in Potomac, MD and moved just down the road to Gaithersburg. We have nothing but good things to say about the people  More

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Over 10 years ago

The city of Gaithersburg offers all of the employment opportunities of being within commuting range of D.C. without the congestion. Homes are more affordable and you  More

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The state has the potential to be a great place to live ... but that 'Reality’ is just slipping away. The current leadership has done a really bang-up job creating so  More

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Reviews for Kildeer    0 Reviews

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