Saint Louis County Historical Age Data
ACS 2010-2014 data
Total population: 1,000,423
Median Age (
see rank)
| Saint Louis County | 40.20 years old |
| Missouri | 38.10 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Saint Louis County | 38.00 years old |
| Missouri | 36.70 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Saint Louis County | 41.80 years old |
| Missouri | 39.50 years old |
| U.S. | 38.80 years old |
| | Saint Louis County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 58,339 | 5.83%, see rank | 6.29% | 6.36% |
| 5 to 9 years | 61,695 | 6.17%, see rank | 6.50% | 6.51% |
| 10 to 14 years | 66,095 | 6.61%, see rank | 6.55% | 6.59% |
| 15 to 19 years | 68,776 | 6.87%, see rank | 6.78% | 6.85% |
| 20 to 24 years | 61,474 | 6.14%, see rank | 7.04% | 7.13% |
| 25 to 34 years | 125,226 | 12.52%, see rank | 13.15% | 13.47% |
| 35 to 44 years | 119,216 | 11.92%, see rank | 12.20% | 12.96% |
| 45 to 54 years | 147,597 | 14.75%, see rank | 14.18% | 14.09% |
| 55 to 64 years | 135,223 | 13.52%, see rank | 12.67% | 12.29% |
| 65 to 74 years | 81,060 | 8.10%, see rank | 8.07% | 7.64% |
| 75 to 84 | 50,239 | 5.02%, see rank | 4.59% | 4.25% |
| 85 years and over | 25,483 | 2.55%, see rank | 1.98% | 1.85% |
US Census 2010 data
Total population: 998,954
Median Age (
see rank)
| Saint Louis County | 39.90 years old |
| Missouri | 37.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Saint Louis County | 37.90 years old |
| Missouri | 36.50 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Saint Louis County | 41.60 years old |
| Missouri | 39.20 years old |
| U.S. | 38.50 years old |
| | Saint Louis County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 58,606 | 5.87%, see rank | 6.52% | 6.54% |
| 5 to 9 years | 62,946 | 6.30%, see rank | 6.52% | 6.59% |
| 10 to 14 years | 67,920 | 6.80%, see rank | 6.63% | 6.70% |
| 15 to 19 years | 70,954 | 7.10%, see rank | 7.08% | 7.14% |
| 20 to 24 years | 60,220 | 6.03%, see rank | 6.90% | 6.99% |
| 25 to 34 years | 121,851 | 12.20%, see rank | 12.95% | 13.30% |
| 35 to 44 years | 122,763 | 12.29%, see rank | 12.50% | 13.30% |
| 45 to 54 years | 155,599 | 15.58%, see rank | 14.84% | 14.58% |
| 55 to 64 years | 128,602 | 12.87%, see rank | 12.08% | 11.82% |
| 65 to 74 years | 74,243 | 7.43%, see rank | 7.52% | 7.03% |
| 75 to 84 | 51,654 | 5.17%, see rank | 4.58% | 4.23% |
| 85 years and over | 23,596 | 2.36%, see rank | 1.90% | 1.78% |
ACS 2008-2012 data
Total population: 999,147
Median Age (
see rank)
| Saint Louis County | 39.80 years old |
| Missouri | 37.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Saint Louis County | 37.90 years old |
| Missouri | 36.50 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Saint Louis County | 41.60 years old |
| Missouri | 39.20 years old |
| U.S. | 38.50 years old |
| | Saint Louis County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 58,274 | 5.83%, see rank | 6.44% | 6.51% |
| 5 to 9 years | 61,688 | 6.17%, see rank | 6.51% | 6.57% |
| 10 to 14 years | 68,822 | 6.89%, see rank | 6.63% | 6.68% |
| 15 to 19 years | 70,918 | 7.10%, see rank | 7.04% | 7.09% |
| 20 to 24 years | 60,331 | 6.04%, see rank | 6.95% | 7.04% |
| 25 to 34 years | 122,702 | 12.28%, see rank | 12.96% | 13.32% |
| 35 to 44 years | 123,175 | 12.33%, see rank | 12.57% | 13.34% |
| 45 to 54 years | 153,964 | 15.41%, see rank | 14.66% | 14.44% |
| 55 to 64 years | 128,772 | 12.89%, see rank | 12.13% | 11.84% |
| 65 to 74 years | 75,292 | 7.54%, see rank | 7.60% | 7.12% |
| 75 to 84 | 50,787 | 5.08%, see rank | 4.57% | 4.25% |
| 85 years and over | 24,422 | 2.44%, see rank | 1.93% | 1.78% |
ACS 2006-2010 data
Total population: 999,454
Median Age (
see rank)
| Saint Louis County | 39.40 years old |
| Missouri | 37.60 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Saint Louis County | 37.50 years old |
| Missouri | 36.20 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Saint Louis County | 41.10 years old |
| Missouri | 38.90 years old |
| U.S. | 38.10 years old |
| | Saint Louis County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 58,828 | 5.89%, see rank | 6.53% | 6.62% |
| 5 to 9 years | 63,153 | 6.32%, see rank | 6.51% | 6.62% |
| 10 to 14 years | 70,530 | 7.06%, see rank | 6.77% | 6.79% |
| 15 to 19 years | 72,069 | 7.21%, see rank | 7.26% | 7.28% |
| 20 to 24 years | 60,917 | 6.10%, see rank | 6.96% | 6.98% |
| 25 to 34 years | 120,010 | 12.01%, see rank | 12.74% | 13.22% |
| 35 to 44 years | 130,076 | 13.01%, see rank | 13.15% | 13.89% |
| 45 to 54 years | 156,646 | 15.67%, see rank | 14.84% | 14.57% |
| 55 to 64 years | 121,083 | 12.11%, see rank | 11.52% | 11.28% |
| 65 to 74 years | 71,164 | 7.12%, see rank | 7.25% | 6.74% |
| 75 to 84 | 52,462 | 5.25%, see rank | 4.61% | 4.30% |
| 85 years and over | 22,516 | 2.25%, see rank | 1.87% | 1.70% |
ACS 2005-2009 data
Total population: 994,923
Median Age (
see rank)
| Saint Louis County | 39.20 years old |
| Missouri | 37.30 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Saint Louis County | 37.40 years old |
| Missouri | 35.90 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Saint Louis County | 40.80 years old |
| Missouri | 38.70 years old |
| U.S. | 37.90 years old |
| | Saint Louis County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 60,831 | 6.11%, see rank | 6.70% | 6.92% |
| 5 to 9 years | 62,927 | 6.32%, see rank | 6.45% | 6.59% |
| 10 to 14 years | 69,898 | 7.03%, see rank | 6.78% | 6.83% |
| 15 to 19 years | 72,042 | 7.24%, see rank | 7.16% | 7.15% |
| 20 to 24 years | 62,253 | 6.26%, see rank | 7.13% | 7.02% |
| 25 to 34 years | 116,078 | 11.67%, see rank | 12.83% | 13.42% |
| 35 to 44 years | 134,920 | 13.56%, see rank | 13.57% | 14.18% |
| 45 to 54 years | 157,542 | 15.83%, see rank | 14.77% | 14.48% |
| 55 to 64 years | 115,935 | 11.65%, see rank | 11.12% | 10.81% |
| 65 to 74 years | 68,314 | 6.87%, see rank | 6.95% | 6.50% |
| 75 to 84 | 52,225 | 5.25%, see rank | 4.67% | 4.40% |
| 85 years and over | 21,958 | 2.21%, see rank | 1.88% | 1.71% |
US Census 2000 data
Total population: 1,016,315
Median Age (
see rank)
| Saint Louis County | 37.50 years old |
| Missouri | 36.10 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Saint Louis County | 35.90 years old |
| Missouri | 34.80 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Saint Louis County | 38.90 years old |
| Missouri | 37.40 years old |
| U.S. | 36.50 years old |
| | Saint Louis County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 63,851 | 6.28%, see rank | 6.61% | 6.81% |
| 5 to 9 years | 72,440 | 7.13%, see rank | 7.13% | 7.30% |
| 10 to 14 years | 75,093 | 7.39%, see rank | 7.36% | 7.29% |
| 15 to 19 years | 70,898 | 6.98%, see rank | 7.39% | 7.18% |
| 20 to 24 years | 57,773 | 5.68%, see rank | 6.60% | 6.74% |
| 25 to 34 years | 128,486 | 12.64%, see rank | 13.20% | 14.18% |
| 35 to 44 years | 166,048 | 16.34%, see rank | 15.86% | 16.04% |
| 45 to 54 years | 145,894 | 14.36%, see rank | 13.27% | 13.39% |
| 55 to 64 years | 92,570 | 9.11%, see rank | 9.07% | 8.63% |
| 65 to 74 years | 73,663 | 7.25%, see rank | 7.03% | 6.54% |
| 75 to 84 | 51,176 | 5.04%, see rank | 4.71% | 4.39% |
| 85 years and over | 18,423 | 1.81%, see rank | 1.76% | 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.
