2025 Compare Cities People:
Half Moon Bay, CA vs Quincy, IL

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Highlights
- Quincy is 0% more densely populated than Half Moon Bay.
- People are 13.3% less likely to be married in Quincy.
- The Median Age is 4.9 years younger in Quincy.
 Half Moon Bay, CAQuincy, ILUnited States
 Population  Unlock39,687329,725,481
 Female Population53.3%  Unlock50.5%
 Male Population46.7%  Unlock49.5%
 Median Age  Unlock4038.4
 space3
 Population - 201011,369  Unlock309,327,143
 Population - 2000  Unlock40,366285,036,114
 Population - 19908,886  Unlock251,960,433
 Pop. 2000 to Now  Unlock-1.9%15.6%
 Pop. 1990 to Now40.8%  Unlock30.8%
 space4
 Population Density  Unlock2,525.993.4
 Land Area6.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Half Moon Bay, CAQuincy, ILUnited States
 Age 0 to 45.7%  Unlock5.9%
 Age 5 to 9  Unlock6.4%6.1%
 Age 10 to 144.9%  Unlock6.6%
 Age 15 to 17  Unlock2.8%3.9%
 Age 18 to 206.1%  Unlock4.0%
 Age 21 to 24  Unlock5.4%5.2%
 Age 25 to 349.7%  Unlock13.8%
 Age 35 to 44  Unlock11.8%12.9%
 Age 45 to 5414.0%  Unlock12.6%
 Age 55 to 59  Unlock6.5%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock10.8%9.6%
 Age 75 to 845.6%  Unlock4.5%
 Age 85 and over  Unlock3.7%1.9%
 space1
 Race
 Half Moon Bay, CAQuincy, ILUnited States
 White59.2%  Unlock59.4%
 Black  Unlock6.1%12.2%
 Asian5.3%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races3.1%  Unlock3.2%
 Hispanic  Unlock1.9%18.4%
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 Marriage & Family
 Half Moon Bay, CAQuincy, ILUnited States
 Married Population55.5%  Unlock49.8%
     Currently Married  Unlock46.4%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock51.9%50.2%
 Never Married29.8%  Unlock33.8%
 Divorced  Unlock13.9%10.8%
 Widowed5.6%  Unlock5.6%
 space5
 Household Size  Unlock2.272.60
 Households4,117  Unlock124,010,992
 Family Households  Unlock9,56580,755,759
     Married couple, w/children26.8%  Unlock30.5%
     Married couple, no children  Unlock46.1%42.9%
 Non Family Households1,285  Unlock43,255,233
     Single householder, w/children  Unlock18.5%15.8%
     Single householder, no children7.8%  Unlock10.8%
Reviews for Half Moon Bay    3 Reviews

HMB has one of the best climates in the world. It also has some very good restaurants. You have the ocean on one side and scenic foothills to the east.It would be heaven  More

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Over 19 years ago

Rural coastal living in a great community close to San Francisco and Silicon  More

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Over 20 years ago

I lived in HMB for 17 years and loved (almost) every minute there. Beautiful hills to the east of the town and the Pacific ocean to the west. Close to San Francisco,  More

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Reviews for Quincy    21 Reviews

Over 9 years ago

I have live in quincy il since 2003 till now and it really is a nice place to raise your family no matter where you go, you going to have crime. but other than that it's  More

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I lived in Quincy for 15 years. I owned a house and participated in the local economy. My kids went to school there. The kids have fond memories of Quincy. I do not.  More

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Over 12 years ago

I haven't always lived in Quincy. I'm originally from the St. Louis area, but have moved around many times, and have also done a lot of traveling. My husband & I  More

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