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2026 Compare Cities People:
Nampa, ID vs Sun Valley, ID

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Highlights
- Sun Valley is 0% more densely populated than Nampa.
- People are 4.3% less likely to be married in Sun Valley.
- The Median Age is 24.4 years older in Sun Valley.
 Nampa, IDSun Valley, IDUnited States
 Population  Unlock1,277329,725,481
 Female Population49.8%  Unlock50.5%
 Male Population50.2%  Unlock49.5%
 Median Age  Unlock5838.4
 space3
 Population - 201082,015  Unlock309,327,143
 Population - 2000  Unlock1,427285,036,114
 Population - 199028,365  Unlock251,960,433
 Pop. 2000 to Now  Unlock5.3%15.6%
 Pop. 1990 to Now263.9%  Unlock30.8%
 space4
 Population Density  Unlock133.593.4
 Land Area32.2  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Nampa, IDSun Valley, IDUnited States
 Age 0 to 46.7%  Unlock5.9%
 Age 5 to 9  Unlock2.3%6.1%
 Age 10 to 147.1%  Unlock6.6%
 Age 15 to 17  Unlock5.5%3.9%
 Age 18 to 204.6%  Unlock4.0%
 Age 21 to 24  Unlock6.3%5.2%
 Age 25 to 3415.5%  Unlock13.8%
 Age 35 to 44  Unlock4.6%12.9%
 Age 45 to 5410.3%  Unlock12.6%
 Age 55 to 59  Unlock6.7%6.7%
 Age 60 to 644.7%  Unlock6.3%
 Age 65 to 74  Unlock30.0%9.6%
 Age 75 to 843.7%  Unlock4.5%
 Age 85 and over  Unlock2.7%1.9%
 space1
 Race
 Nampa, IDSun Valley, IDUnited States
 White68.6%  Unlock59.4%
 Black  Unlock1.6%12.2%
 Asian0.6%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races3.5%  Unlock3.2%
 Hispanic  Unlock9.6%18.4%
 space2
 Marriage & Family
 Nampa, IDSun Valley, IDUnited States
 Married Population51.0%  Unlock49.8%
     Currently Married  Unlock48.1%48.0%
 Married but Separated1.4%  Unlock1.8%
 Single Population  Unlock51.2%50.2%
 Never Married31.6%  Unlock33.8%
 Divorced  Unlock23.2%10.8%
 Widowed3.8%  Unlock5.6%
 space5
 Household Size  Unlock2.002.60
 Households34,997  Unlock124,010,992
 Family Households  Unlock24980,755,759
     Married couple, w/children35.5%  Unlock30.5%
     Married couple, no children  Unlock80.3%42.9%
 Non Family Households10,978  Unlock43,255,233
     Single householder, w/children  Unlock0.0%15.8%
     Single householder, no children11.5%  Unlock10.8%
Voting
Reviews for Nampa    5 Reviews
Linda · Surprise, AZ
Response to quality of Idaho schools and Arizona s
Over 11 years ago

We have lived in Arizona (near Phoenix) for 20 years. We are in the process of moving to the Nampa/Caldwell area. Trust me you DO NOT want to come to Arizona for an  More

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CJ · Nampa, ID
Overall Costs here are better than many places
Over 13 years ago

Sales tax is one area that it hard to get used to, taxes here are probably average but I was not used to paying sales tax. After I checked it out against other states  More

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Travis · Nampa, ID
What Economy?
Over 16 years ago

Im sure the economy is bad everywhere, but in Nampa, i believe i read the unemployment rate is near  More

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Reviews for Sun Valley    5 Reviews
BLT · Sun Valley, ID
Sun Valley - Retirement Community for the Rich
Over 16 years ago

Young people living in Sun Valley, unless they have a trust fund can expect to have a difficult time here. The average age seems to be approx 78. Any business that is  More

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Cynthia · Ketchum, ID
Sun Valley....a love/hate relationship!
Over 19 years ago

Absolutely beautiful. Nice people. Amazing skiing...all types of recreation for anyone and everyone. Summer temperatures are perfect. It's sunny more than 250 days  More

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Bob · Sun Valley, ID
short seasons
Over 20 years ago

Winters are long, and summers can be short!!! The physcial beauty of the area is unbeatable,  More

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Learn More About Nampa, Idaho
Overview
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Learn More About Sun Valley, Idaho
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