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2025 Compare Cities People:
Irmo, SC vs Willow Creek, CA

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Highlights
- Willow Creek is 0% more densely populated than Irmo.
- People are 2.8% more likely to be married in Willow Creek.
- The Median Age is 0.3 years younger in Willow Creek.
 Irmo, SCWillow Creek, CAUnited States
 Population  Unlock1,298329,725,481
 Female Population54.2%  Unlock50.5%
 Male Population45.8%  Unlock49.5%
 Median Age  Unlock39.338.4
 space3
 Population - 201011,167  Unlock309,327,143
 Population - 2000  Unlock1,743285,036,114
 Population - 199011,280  Unlock251,960,433
 Pop. 2000 to Now  Unlock-17.8%15.6%
 Pop. 1990 to Now12.9%  Unlock30.8%
 space4
 Population Density  Unlock42.893.4
 Land Area6.8  Unlock3,531,905.4
 Water Area  Unlock0.3264,836.8
 space
 Est. Total Population By Age
 Irmo, SCWillow Creek, CAUnited States
 Age 0 to 44.1%  Unlock5.9%
 Age 5 to 9  Unlock9.0%6.1%
 Age 10 to 144.9%  Unlock6.6%
 Age 15 to 17  Unlock1.3%3.9%
 Age 18 to 202.2%  Unlock4.0%
 Age 21 to 24  Unlock2.0%5.2%
 Age 25 to 3417.6%  Unlock13.8%
 Age 35 to 44  Unlock8.6%12.9%
 Age 45 to 5412.7%  Unlock12.6%
 Age 55 to 59  Unlock13.7%6.7%
 Age 60 to 645.0%  Unlock6.3%
 Age 65 to 74  Unlock14.8%9.6%
 Age 75 to 845.0%  Unlock4.5%
 Age 85 and over  Unlock0.6%1.9%
 space1
 Race
 Irmo, SCWillow Creek, CAUnited States
 White65.4%  Unlock59.4%
 Black  Unlock0.0%12.2%
 Asian3.9%  Unlock5.6%
 Native American  Unlock4.3%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock2.7%0.4%
 Two or More Races2.7%  Unlock3.2%
 Hispanic  Unlock4.2%18.4%
 space2
 Marriage & Family
 Irmo, SCWillow Creek, CAUnited States
 Married Population57.7%  Unlock49.8%
     Currently Married  Unlock59.3%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock40.7%50.2%
 Never Married28.4%  Unlock33.8%
 Divorced  Unlock7.3%10.8%
 Widowed4.4%  Unlock5.6%
 space5
 Household Size  Unlock2.322.60
 Households4,567  Unlock124,010,992
 Family Households  Unlock27080,755,759
     Married couple, w/children26.1%  Unlock30.5%
     Married couple, no children  Unlock55.9%42.9%
 Non Family Households1,217  Unlock43,255,233
     Single householder, w/children  Unlock0.0%15.8%
     Single householder, no children4.0%  Unlock10.8%
Voting
Reviews for Irmo    9 Reviews
Stephen · Calera, AL
A hidden gem in an up and coming state.
Over 6 years ago

I grew up in near Annapolis MD but lived in both Savannah and Atlanta GA for twenty years. Moved to Columbia in 2009 working in IT for SC Dept of Education. Had an  More

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jmd · Irmo, SC
Evenly situated between the beach and the mountain
Over 13 years ago

...there's something for  More

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Thomas  · Irmo, SC
Moving to Irmo
Over 15 years ago

Any thing I should know about  More

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Reviews for Willow Creek    1 Reviews
Laura · Hoopa, CA
Pleasant, hot in summer, rains and rains and rains
Over 18 years ago

Too gray in the  More

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Learn More About Irmo, South Carolina
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