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2026 Compare Cities People:
Kapaau, HI vs Mill Valley, CA

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Highlights
- Mill Valley is 0% more densely populated than Kapaau.
- People are 33.3% more likely to be married in Mill Valley.
- The Median Age is 2.3 years older in Mill Valley.
 Kapaau, HIMill Valley, CAUnited States
 Population  Unlock14,240329,725,481
 Female Population52.2%  Unlock50.5%
 Male Population47.9%  Unlock49.5%
 Median Age  Unlock47.938.4
 space3
 Population - 20101,627  Unlock309,327,143
 Population - 2000  Unlock13,600285,036,114
 Population - 19901,083  Unlock251,960,433
 Pop. 2000 to Now  Unlock5.3%15.6%
 Pop. 1990 to Now70.6%  Unlock30.8%
 space4
 Population Density  Unlock2,989.793.4
 Land Area2.9  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Kapaau, HIMill Valley, CAUnited States
 Age 0 to 44.3%  Unlock5.9%
 Age 5 to 9  Unlock5.8%6.1%
 Age 10 to 144.6%  Unlock6.6%
 Age 15 to 17  Unlock6.1%3.9%
 Age 18 to 205.0%  Unlock4.0%
 Age 21 to 24  Unlock1.5%5.2%
 Age 25 to 348.6%  Unlock13.8%
 Age 35 to 44  Unlock12.2%12.9%
 Age 45 to 5414.6%  Unlock12.6%
 Age 55 to 59  Unlock7.8%6.7%
 Age 60 to 648.2%  Unlock6.3%
 Age 65 to 74  Unlock11.6%9.6%
 Age 75 to 842.3%  Unlock4.5%
 Age 85 and over  Unlock3.0%1.9%
 space1
 Race
 Kapaau, HIMill Valley, CAUnited States
 White17.6%  Unlock59.4%
 Black  Unlock1.4%12.2%
 Asian22.2%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander5.0%  Unlock0.2%
 Other  Unlock1.0%0.4%
 Two or More Races19.3%  Unlock3.2%
 Hispanic  Unlock3.0%18.4%
 space2
 Marriage & Family
 Kapaau, HIMill Valley, CAUnited States
 Married Population42.1%  Unlock49.8%
     Currently Married  Unlock55.6%48.0%
 Married but Separated0.0%  Unlock1.8%
 Single Population  Unlock43.9%50.2%
 Never Married40.4%  Unlock33.8%
 Divorced  Unlock12.5%10.8%
 Widowed9.7%  Unlock5.6%
 space5
 Household Size  Unlock2.522.60
 Households676  Unlock124,010,992
 Family Households  Unlock3,81480,755,759
     Married couple, w/children19.4%  Unlock30.5%
     Married couple, no children  Unlock49.5%42.9%
 Non Family Households258  Unlock43,255,233
     Single householder, w/children  Unlock9.8%15.8%
     Single householder, no children11.2%  Unlock10.8%
Voting
Reviews for Kapaau    1 Reviews
Scott · Kapaau, HI
Small town at the end of the road on an island in
Over 17 years ago

Kapaau and neighboring Hawi are located on the northern tip of the Island of Hawaii, commonly called the Big Island. Approx 6500 people in the area. The road stops at  More

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Reviews for Mill Valley    7 Reviews
Thomas · Chatham, NJ
Mill Valley Tiburon wonderful
Over 5 years ago

I lived in southern Marin County for 20 years and lived it. Just moved  More

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chris · Mill Valley, CA
Pristine and Costly
Over 16 years ago

Mill Valley is a perfect place to live and raise a family, if you don't mind a cost of living index of 233. Don't distress - go mountain biking or hiking with  More

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Robbin · Mill Valley, CA
California
Over 17 years ago

Good weather all year around. Great public schools. Cost of living very high. Crime low wonderful outdoor activities nearby like hiking, beaches,  More

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Learn More About Kapaau, Hawaii
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