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2025 Compare Cities People:
Duncan, SC vs Sammamish, WA

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Highlights
- Sammamish is 0% more densely populated than Duncan.
- People are 77.1% more likely to be married in Sammamish.
- The Median Age is 8.7 years older in Sammamish.
 Duncan, SCSammamish, WAUnited States
 Population  Unlock66,532329,725,481
 Female Population54.1%  Unlock50.5%
 Male Population46.0%  Unlock49.5%
 Median Age  Unlock39.238.4
 space3
 Population - 20103,192  Unlock309,327,143
 Population - 2000  Unlock34,104285,036,114
 Population - 19902,152  Unlock251,960,433
 Pop. 2000 to Now  Unlock93.4%15.6%
 Pop. 1990 to Now72.6%  Unlock30.8%
 space4
 Population Density  Unlock3,255.593.4
 Land Area4.8  Unlock3,531,905.4
 Water Area  Unlock3.7264,836.8
 space
 Est. Total Population By Age
 Duncan, SCSammamish, WAUnited States
 Age 0 to 47.5%  Unlock5.9%
 Age 5 to 9  Unlock7.3%6.1%
 Age 10 to 146.2%  Unlock6.6%
 Age 15 to 17  Unlock6.3%3.9%
 Age 18 to 201.4%  Unlock4.0%
 Age 21 to 24  Unlock2.9%5.2%
 Age 25 to 3428.4%  Unlock13.8%
 Age 35 to 44  Unlock18.2%12.9%
 Age 45 to 547.7%  Unlock12.6%
 Age 55 to 59  Unlock6.5%6.7%
 Age 60 to 645.9%  Unlock6.3%
 Age 65 to 74  Unlock5.6%9.6%
 Age 75 to 840.6%  Unlock4.5%
 Age 85 and over  Unlock0.5%1.9%
 space1
 Race
 Duncan, SCSammamish, WAUnited States
 White52.7%  Unlock59.4%
 Black  Unlock1.6%12.2%
 Asian0.0%  Unlock5.6%
 Native American  Unlock0.3%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races4.0%  Unlock3.2%
 Hispanic  Unlock3.5%18.4%
 space2
 Marriage & Family
 Duncan, SCSammamish, WAUnited States
 Married Population39.9%  Unlock49.8%
     Currently Married  Unlock70.0%48.0%
 Married but Separated4.2%  Unlock1.8%
 Single Population  Unlock29.3%50.2%
 Never Married33.7%  Unlock33.8%
 Divorced  Unlock4.8%10.8%
 Widowed12.7%  Unlock5.6%
 space5
 Household Size  Unlock3.032.60
 Households1,565  Unlock124,010,992
 Family Households  Unlock19,13880,755,759
     Married couple, w/children24.8%  Unlock30.5%
     Married couple, no children  Unlock34.7%42.9%
 Non Family Households604  Unlock43,255,233
     Single householder, w/children  Unlock7.1%15.8%
     Single householder, no children9.7%  Unlock10.8%
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Reviews for Duncan    0 Reviews

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Reviews for Sammamish    4 Reviews
Paula · Sammamish, WA
Soggy in Seattle
Over 10 years ago

Seattle has beautiful greenery and gorgeous mountain views. It is quite dark and gloomy for much of the late fall into spring...or July 5th as locals know quite well. I  More

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Loren · Sammamish, WA
Seems expensive, but worth it
Over 11 years ago

Housing seems to be very overpriced, however after all things considered, it is well worth it. (Family of  More

   |    Reply
Noelle · Sammamish, WA
Sammamish is an all-around great place to live!
Over 13 years ago

Sammamish is honestly a wonderful place to live. It's perfect for a family who wants a comfortable entertaining suburban life. The schools are pretty great, as I can say  More

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Learn More About Duncan, South Carolina
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