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2025 Compare Cities People:
Quincy, IL vs Plainfield, IL

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Highlights
- Plainfield is 0% more densely populated than Quincy.
- People are 30.6% more likely to be married in Plainfield.
- The Median Age is 2.7 years younger in Plainfield.
 Quincy, ILPlainfield, ILUnited States
 Population  Unlock44,296329,725,481
 Female Population52.1%  Unlock50.5%
 Male Population47.9%  Unlock49.5%
 Median Age  Unlock37.338.4
 space3
 Population - 201040,770  Unlock309,327,143
 Population - 2000  Unlock13,038285,036,114
 Population - 199039,681  Unlock251,960,433
 Pop. 2000 to Now  Unlock241.6%15.6%
 Pop. 1990 to Now-0.2%  Unlock30.8%
 space4
 Population Density  Unlock1,808.193.4
 Land Area15.7  Unlock3,531,905.4
 Water Area  Unlock1.0264,836.8
 space
 Est. Total Population By Age
 Quincy, ILPlainfield, ILUnited States
 Age 0 to 46.3%  Unlock5.9%
 Age 5 to 9  Unlock8.2%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock5.8%3.9%
 Age 18 to 203.0%  Unlock4.0%
 Age 21 to 24  Unlock4.3%5.2%
 Age 25 to 3414.0%  Unlock13.8%
 Age 35 to 44  Unlock15.6%12.9%
 Age 45 to 5410.9%  Unlock12.6%
 Age 55 to 59  Unlock6.0%6.7%
 Age 60 to 646.5%  Unlock6.3%
 Age 65 to 74  Unlock5.6%9.6%
 Age 75 to 845.8%  Unlock4.5%
 Age 85 and over  Unlock1.3%1.9%
 space1
 Race
 Quincy, ILPlainfield, ILUnited States
 White87.4%  Unlock59.4%
 Black  Unlock8.3%12.2%
 Asian0.8%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.7%  Unlock3.2%
 Hispanic  Unlock9.9%18.4%
 space2
 Marriage & Family
 Quincy, ILPlainfield, ILUnited States
 Married Population48.1%  Unlock49.8%
     Currently Married  Unlock62.1%48.0%
 Married but Separated1.8%  Unlock1.8%
 Single Population  Unlock37.1%50.2%
 Never Married30.3%  Unlock33.8%
 Divorced  Unlock6.5%10.8%
 Widowed7.6%  Unlock5.6%
 space5
 Household Size  Unlock3.272.60
 Households17,016  Unlock124,010,992
 Family Households  Unlock11,52580,755,759
     Married couple, w/children25.8%  Unlock30.5%
     Married couple, no children  Unlock34.6%42.9%
 Non Family Households7,451  Unlock43,255,233
     Single householder, w/children  Unlock9.3%15.8%
     Single householder, no children9.6%  Unlock10.8%
Voting
Reviews for Quincy    21 Reviews
razs454 · Quincy, IL
TOWN
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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Doug · Peoria, IL
If you're not from here, you are not welcome
Over 9 years ago

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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Nicole · Quincy, IL
You don't want to be here
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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Reviews for Plainfield    13 Reviews
Peter · Plainfield, IL
Housing
Over 11 years ago

Plenty of housing in Plainfield, Joliet, IL area but norm on rent for a three bedroom house is around $2000.00  More

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Bp · Plainfield, IL
Grand Park Subdivision
Over 12 years ago

We transferred from the East Coast to Chicagoland and did not know where to live....We have kids and did NOT want the excess (read Drug Problems) in Naperville....Our  More

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Eric · Plainfield, IL
Plainfleld, IL
Over 12 years ago

Plainfield is a good place to live, housing is descent, low crime.   More

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Learn More About Quincy, Illinois
Overview
Cost of Living
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Learn More About Plainfield, Illinois
Overview
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