Lake Forest, CA Historical Age Data
ACS 2010-2014 data
Total population: 78,940
Median Age (
see rank)
| Lake Forest, CA | 38.20 years old |
| California | 35.60 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Lake Forest, CA | 37.40 years old |
| California | 34.50 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Lake Forest, CA | 39.10 years old |
| California | 36.80 years old |
| U.S. | 38.80 years old |
| | Lake Forest, CA | % of the Total Population | California | U.S. |
| Under 5 years | 4,458 | 5.65%, see rank | 6.62% | 6.36% |
| 5 to 9 years | 4,835 | 6.12%, see rank | 6.65% | 6.51% |
| 10 to 14 years | 5,733 | 7.26%, see rank | 6.70% | 6.59% |
| 15 to 19 years | 5,591 | 7.08%, see rank | 7.12% | 6.85% |
| 20 to 24 years | 5,070 | 6.42%, see rank | 7.58% | 7.13% |
| 25 to 34 years | 10,336 | 13.09%, see rank | 14.48% | 13.47% |
| 35 to 44 years | 11,387 | 14.42%, see rank | 13.60% | 12.96% |
| 45 to 54 years | 14,152 | 17.93%, see rank | 13.79% | 14.09% |
| 55 to 64 years | 9,428 | 11.94%, see rank | 11.32% | 12.29% |
| 65 to 74 years | 4,725 | 5.99%, see rank | 6.71% | 7.64% |
| 75 to 84 | 2,226 | 2.82%, see rank | 3.72% | 4.25% |
| 85 years and over | 999 | 1.27%, see rank | 1.70% | 1.85% |
US Census 2010 data
Total population: 77,264
Median Age (
see rank)
| Lake Forest, CA | 37.20 years old |
| California | 35.20 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Lake Forest, CA | 35.80 years old |
| California | 34.00 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Lake Forest, CA | 38.60 years old |
| California | 36.30 years old |
| U.S. | 38.50 years old |
| | Lake Forest, CA | % of the Total Population | California | U.S. |
| Under 5 years | 4,834 | 6.26%, see rank | 6.79% | 6.54% |
| 5 to 9 years | 5,055 | 6.54%, see rank | 6.73% | 6.59% |
| 10 to 14 years | 5,580 | 7.22%, see rank | 6.95% | 6.70% |
| 15 to 19 years | 5,733 | 7.42%, see rank | 7.58% | 7.14% |
| 20 to 24 years | 4,688 | 6.07%, see rank | 7.42% | 6.99% |
| 25 to 34 years | 10,347 | 13.39%, see rank | 14.27% | 13.30% |
| 35 to 44 years | 11,752 | 15.21%, see rank | 13.91% | 13.30% |
| 45 to 54 years | 13,223 | 17.11%, see rank | 14.10% | 14.58% |
| 55 to 64 years | 8,961 | 11.60%, see rank | 10.84% | 11.82% |
| 65 to 74 years | 4,137 | 5.35%, see rank | 6.11% | 7.03% |
| 75 to 84 | 1,909 | 2.47%, see rank | 3.68% | 4.23% |
| 85 years and over | 1,045 | 1.35%, see rank | 1.61% | 1.78% |
ACS 2008-2012 data
Total population: 77,605
Median Age (
see rank)
| Lake Forest, CA | 38.10 years old |
| California | 35.20 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Lake Forest, CA | 37.40 years old |
| California | 34.10 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Lake Forest, CA | 39.10 years old |
| California | 36.40 years old |
| U.S. | 38.50 years old |
| | Lake Forest, CA | % of the Total Population | California | U.S. |
| Under 5 years | 4,436 | 5.72%, see rank | 6.82% | 6.51% |
| 5 to 9 years | 5,053 | 6.51%, see rank | 6.71% | 6.57% |
| 10 to 14 years | 5,775 | 7.44%, see rank | 6.91% | 6.68% |
| 15 to 19 years | 5,704 | 7.35%, see rank | 7.47% | 7.09% |
| 20 to 24 years | 4,397 | 5.67%, see rank | 7.49% | 7.04% |
| 25 to 34 years | 9,693 | 12.49%, see rank | 14.32% | 13.32% |
| 35 to 44 years | 11,975 | 15.43%, see rank | 13.93% | 13.34% |
| 45 to 54 years | 14,057 | 18.11%, see rank | 14.00% | 14.44% |
| 55 to 64 years | 8,841 | 11.39%, see rank | 10.85% | 11.84% |
| 65 to 74 years | 4,597 | 5.92%, see rank | 6.20% | 7.12% |
| 75 to 84 | 2,138 | 2.75%, see rank | 3.70% | 4.25% |
| 85 years and over | 939 | 1.21%, see rank | 1.62% | 1.78% |
ACS 2006-2010 data
Total population: 76,724
Median Age (
see rank)
| Lake Forest, CA | 37.90 years old |
| California | 34.90 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Lake Forest, CA | 37.30 years old |
| California | 33.70 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Lake Forest, CA | 38.50 years old |
| California | 36.00 years old |
| U.S. | 38.10 years old |
| | Lake Forest, CA | % of the Total Population | California | U.S. |
| Under 5 years | 5,030 | 6.56%, see rank | 6.95% | 6.62% |
| 5 to 9 years | 5,199 | 6.78%, see rank | 6.78% | 6.62% |
| 10 to 14 years | 5,917 | 7.71%, see rank | 7.12% | 6.79% |
| 15 to 19 years | 4,996 | 6.51%, see rank | 7.65% | 7.28% |
| 20 to 24 years | 4,047 | 5.27%, see rank | 7.37% | 6.98% |
| 25 to 34 years | 10,039 | 13.08%, see rank | 14.29% | 13.22% |
| 35 to 44 years | 12,671 | 16.52%, see rank | 14.43% | 13.89% |
| 45 to 54 years | 13,437 | 17.51%, see rank | 14.05% | 14.57% |
| 55 to 64 years | 8,377 | 10.92%, see rank | 10.28% | 11.28% |
| 65 to 74 years | 4,121 | 5.37%, see rank | 5.83% | 6.74% |
| 75 to 84 | 1,947 | 2.54%, see rank | 3.73% | 4.30% |
| 85 years and over | 943 | 1.23%, see rank | 1.52% | 1.70% |
ACS 2005-2009 data
Total population: 75,285
Median Age (
see rank)
| Lake Forest, CA | 37.00 years old |
| California | 34.60 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Lake Forest, CA | 36.10 years old |
| California | 33.40 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Lake Forest, CA | 37.50 years old |
| California | 35.70 years old |
| U.S. | 37.90 years old |
| | Lake Forest, CA | % of the Total Population | California | U.S. |
| Under 5 years | 5,303 | 7.04%, see rank | 7.44% | 6.92% |
| 5 to 9 years | 5,121 | 6.80%, see rank | 6.82% | 6.59% |
| 10 to 14 years | 5,553 | 7.38%, see rank | 7.26% | 6.83% |
| 15 to 19 years | 4,586 | 6.09%, see rank | 7.34% | 7.15% |
| 20 to 24 years | 3,888 | 5.16%, see rank | 7.20% | 7.02% |
| 25 to 34 years | 11,113 | 14.76%, see rank | 14.55% | 13.42% |
| 35 to 44 years | 12,571 | 16.70%, see rank | 14.71% | 14.18% |
| 45 to 54 years | 12,929 | 17.17%, see rank | 13.94% | 14.48% |
| 55 to 64 years | 7,907 | 10.50%, see rank | 9.81% | 10.81% |
| 65 to 74 years | 3,689 | 4.90%, see rank | 5.65% | 6.50% |
| 75 to 84 | 1,695 | 2.25%, see rank | 3.79% | 4.40% |
| 85 years and over | 930 | 1.24%, see rank | 1.50% | 1.71% |
US Census 2000 data
Total population: 58,707
Median Age (
see rank)
| Lake Forest, CA | 35.10 years old |
| California | 33.30 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Lake Forest, CA | 33.70 years old |
| California | 32.20 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Lake Forest, CA | 36.20 years old |
| California | 34.40 years old |
| U.S. | 36.50 years old |
| | Lake Forest, CA | % of the Total Population | California | U.S. |
| Under 5 years | 4,143 | 7.06%, see rank | 7.34% | 6.81% |
| 5 to 9 years | 4,707 | 8.02%, see rank | 8.05% | 7.30% |
| 10 to 14 years | 4,457 | 7.59%, see rank | 7.59% | 7.29% |
| 15 to 19 years | 4,036 | 6.87%, see rank | 7.24% | 7.18% |
| 20 to 24 years | 3,159 | 5.38%, see rank | 7.03% | 6.74% |
| 25 to 34 years | 8,789 | 14.97%, see rank | 15.44% | 14.18% |
| 35 to 44 years | 10,767 | 18.34%, see rank | 16.19% | 16.04% |
| 45 to 54 years | 8,842 | 15.06%, see rank | 12.79% | 13.39% |
| 55 to 64 years | 4,756 | 8.10%, see rank | 7.72% | 8.63% |
| 65 to 74 years | 2,332 | 3.97%, see rank | 5.57% | 6.54% |
| 75 to 84 | 1,686 | 2.87%, see rank | 3.79% | 4.39% |
| 85 years and over | 1,033 | 1.76%, see rank | 1.26% | 1.51% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
