2025 Compare Cities People:
Rochester, IL vs McCormick, SC

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Highlights
- McCormick is 0% more densely populated than Rochester.
- People are 49.4% less likely to be married in McCormick.
- The Median Age is 0.2 years younger in McCormick.
 Rochester, ILMcCormick, SCUnited States
 Population  Unlock2,936329,725,481
 Female Population52.9%  Unlock50.5%
 Male Population47.1%  Unlock49.5%
 Median Age  Unlock42.438.4
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 Population - 20103,725  Unlock309,327,143
 Population - 2000  Unlock1,489285,036,114
 Population - 19902,676  Unlock251,960,433
 Pop. 2000 to Now  Unlock55.8%15.6%
 Pop. 1990 to Now38.8%  Unlock30.8%
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 Population Density  Unlock724.693.4
 Land Area2.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
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 Est. Total Population By Age
 Rochester, ILMcCormick, SCUnited States
 Age 0 to 45.2%  Unlock5.9%
 Age 5 to 9  Unlock3.7%6.1%
 Age 10 to 147.9%  Unlock6.6%
 Age 15 to 17  Unlock3.0%3.9%
 Age 18 to 203.0%  Unlock4.0%
 Age 21 to 24  Unlock3.4%5.2%
 Age 25 to 347.7%  Unlock13.8%
 Age 35 to 44  Unlock15.1%12.9%
 Age 45 to 5412.5%  Unlock12.6%
 Age 55 to 59  Unlock9.1%6.7%
 Age 60 to 647.8%  Unlock6.3%
 Age 65 to 74  Unlock7.3%9.6%
 Age 75 to 843.0%  Unlock4.5%
 Age 85 and over  Unlock2.3%1.9%
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 Race
 Rochester, ILMcCormick, SCUnited States
 White93.5%  Unlock59.4%
 Black  Unlock66.6%12.2%
 Asian1.8%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.3%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races2.2%  Unlock3.2%
 Hispanic  Unlock0.8%18.4%
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 Marriage & Family
 Rochester, ILMcCormick, SCUnited States
 Married Population59.9%  Unlock49.8%
     Currently Married  Unlock26.9%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock69.7%50.2%
 Never Married23.6%  Unlock33.8%
 Divorced  Unlock12.4%10.8%
 Widowed5.9%  Unlock5.6%
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 Household Size  Unlock2.542.60
 Households1,459  Unlock124,010,992
 Family Households  Unlock45980,755,759
     Married couple, w/children36.7%  Unlock30.5%
     Married couple, no children  Unlock37.3%42.9%
 Non Family Households340  Unlock43,255,233
     Single householder, w/children  Unlock39.2%15.8%
     Single householder, no children10.5%  Unlock10.8%
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