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2025 Compare Cities People:
Volcano, HI vs Hayward, CA

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Highlights
- Hayward is 0% more densely populated than Volcano.
- People are 31.7% less likely to be married in Hayward.
- The Median Age is 21.1 years younger in Hayward.
 Volcano, HIHayward, CAUnited States
 Population  Unlock162,254329,725,481
 Female Population56.0%  Unlock50.5%
 Male Population44.1%  Unlock49.5%
 Median Age  Unlock36.638.4
 space3
 Population - 20102,082  Unlock309,327,143
 Population - 2000  Unlock140,030285,036,114
 Population - 19901,516  Unlock251,960,433
 Pop. 2000 to Now  Unlock12.8%15.6%
 Pop. 1990 to Now109.3%  Unlock30.8%
 space4
 Population Density  Unlock3,563.193.4
 Land Area55.1  Unlock3,531,905.4
 Water Area  Unlock18.3264,836.8
 space
 Est. Total Population By Age
 Volcano, HIHayward, CAUnited States
 Age 0 to 44.3%  Unlock5.9%
 Age 5 to 9  Unlock5.4%6.1%
 Age 10 to 140.8%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 203.9%  Unlock4.0%
 Age 21 to 24  Unlock5.2%5.2%
 Age 25 to 3416.5%  Unlock13.8%
 Age 35 to 44  Unlock14.4%12.9%
 Age 45 to 542.2%  Unlock12.6%
 Age 55 to 59  Unlock6.7%6.7%
 Age 60 to 646.3%  Unlock6.3%
 Age 65 to 74  Unlock7.6%9.6%
 Age 75 to 8414.5%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 Volcano, HIHayward, CAUnited States
 White37.5%  Unlock59.4%
 Black  Unlock9.1%12.2%
 Asian7.2%  Unlock5.6%
 Native American  Unlock0.3%0.6%
 Hawaiian, Pacific Islander7.5%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races28.2%  Unlock3.2%
 Hispanic  Unlock38.9%18.4%
 space2
 Marriage & Family
 Volcano, HIHayward, CAUnited States
 Married Population70.9%  Unlock49.8%
     Currently Married  Unlock46.7%48.0%
 Married but Separated0.0%  Unlock1.8%
 Single Population  Unlock51.6%50.2%
 Never Married14.2%  Unlock33.8%
 Divorced  Unlock8.1%10.8%
 Widowed4.1%  Unlock5.6%
 space5
 Household Size  Unlock3.212.60
 Households338  Unlock124,010,992
 Family Households  Unlock36,29680,755,759
     Married couple, w/children8.7%  Unlock30.5%
     Married couple, no children  Unlock34.7%42.9%
 Non Family Households155  Unlock43,255,233
     Single householder, w/children  Unlock15.7%15.8%
     Single householder, no children0.0%  Unlock10.8%
Voting
Reviews for Volcano    2 Reviews
Mary · Volcano, HI
Mistake Of A Lifetime
Over 16 years ago

After several relatively brief visits to The Big Island of Hawaii, my husband and I, both strict vegetarians, decided to move from Palo Alto CA to Volcano Village with  More

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gail · Volcano, HI
Volcano Living
Over 16 years ago

Must love rain. That would be a possible header for Volcano seeking new residents. It is the rain that tends to fall in the night time and sometimes or often in soft  More

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Reviews for Hayward    4 Reviews
Robert · Hayward, CA
A CITY OF NEIGHBORHOODS, CONVENIENT TO THE SF BAY
Over 6 years ago

I've lived in Hayward for 20 years. Traditionally a working  More

   |    Reply
stan · Hayward, CA
Weather,Water,and everything is close. But....
Over 7 years ago

Hetchy Hechy water is very pure,the summers are about 78f..warm enough. Winters are sunny for the most part and by average.One University and one College in this small  More

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MEILING · Hayward, CA
I have no car
Over 11 years ago

convenient BART and bus if you have no  More

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Learn More About Volcano, Hawaii
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