Arapahoe County Historical Age Data
ACS 2010-2014 data
Total population: 596,684
Median Age (
see rank)
| Arapahoe County | 36.00 years old |
| Colorado | 36.20 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Arapahoe County | 34.80 years old |
| Colorado | 35.30 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Arapahoe County | 37.30 years old |
| Colorado | 37.30 years old |
| U.S. | 38.80 years old |
| | Arapahoe County | % of the Total Population | Colorado | U.S. |
| Under 5 years | 40,439 | 6.78%, see rank | 6.49% | 6.36% |
| 5 to 9 years | 42,442 | 7.11%, see rank | 6.79% | 6.51% |
| 10 to 14 years | 41,461 | 6.95%, see rank | 6.63% | 6.59% |
| 15 to 19 years | 38,782 | 6.50%, see rank | 6.57% | 6.85% |
| 20 to 24 years | 37,306 | 6.25%, see rank | 7.07% | 7.13% |
| 25 to 34 years | 88,850 | 14.89%, see rank | 14.71% | 13.47% |
| 35 to 44 years | 84,968 | 14.24%, see rank | 13.67% | 12.96% |
| 45 to 54 years | 84,531 | 14.17%, see rank | 13.93% | 14.09% |
| 55 to 64 years | 72,210 | 12.10%, see rank | 12.31% | 12.29% |
| 65 to 74 years | 38,388 | 6.43%, see rank | 6.91% | 7.64% |
| 75 to 84 | 19,114 | 3.20%, see rank | 3.46% | 4.25% |
| 85 years and over | 8,193 | 1.37%, see rank | 1.45% | 1.85% |
US Census 2010 data
Total population: 572,003
Median Age (
see rank)
| Arapahoe County | 35.70 years old |
| Colorado | 36.10 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Arapahoe County | 34.50 years old |
| Colorado | 35.10 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Arapahoe County | 36.90 years old |
| Colorado | 37.10 years old |
| U.S. | 38.50 years old |
| | Arapahoe County | % of the Total Population | Colorado | U.S. |
| Under 5 years | 40,695 | 7.11%, see rank | 6.84% | 6.54% |
| 5 to 9 years | 41,295 | 7.22%, see rank | 6.93% | 6.59% |
| 10 to 14 years | 40,145 | 7.02%, see rank | 6.61% | 6.70% |
| 15 to 19 years | 38,401 | 6.71%, see rank | 6.75% | 7.14% |
| 20 to 24 years | 35,271 | 6.17%, see rank | 6.93% | 6.99% |
| 25 to 34 years | 84,333 | 14.74%, see rank | 14.44% | 13.30% |
| 35 to 44 years | 82,072 | 14.35%, see rank | 13.91% | 13.30% |
| 45 to 54 years | 85,340 | 14.92%, see rank | 14.77% | 14.58% |
| 55 to 64 years | 66,871 | 11.69%, see rank | 11.88% | 11.82% |
| 65 to 74 years | 32,140 | 5.62%, see rank | 6.16% | 7.03% |
| 75 to 84 | 17,687 | 3.09%, see rank | 3.38% | 4.23% |
| 85 years and over | 7,753 | 1.36%, see rank | 1.38% | 1.78% |
ACS 2008-2012 data
Total population: 574,357
Median Age (
see rank)
| Arapahoe County | 35.70 years old |
| Colorado | 36.10 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Arapahoe County | 34.60 years old |
| Colorado | 35.10 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Arapahoe County | 37.00 years old |
| Colorado | 37.10 years old |
| U.S. | 38.50 years old |
| | Arapahoe County | % of the Total Population | Colorado | U.S. |
| Under 5 years | 40,293 | 7.02%, see rank | 6.76% | 6.51% |
| 5 to 9 years | 42,488 | 7.40%, see rank | 6.91% | 6.57% |
| 10 to 14 years | 38,810 | 6.76%, see rank | 6.56% | 6.68% |
| 15 to 19 years | 38,590 | 6.72%, see rank | 6.75% | 7.09% |
| 20 to 24 years | 35,384 | 6.16%, see rank | 7.00% | 7.04% |
| 25 to 34 years | 84,938 | 14.79%, see rank | 14.49% | 13.32% |
| 35 to 44 years | 82,597 | 14.38%, see rank | 13.95% | 13.34% |
| 45 to 54 years | 84,900 | 14.78%, see rank | 14.59% | 14.44% |
| 55 to 64 years | 67,401 | 11.74%, see rank | 11.90% | 11.84% |
| 65 to 74 years | 33,127 | 5.77%, see rank | 6.27% | 7.12% |
| 75 to 84 | 18,062 | 3.14%, see rank | 3.39% | 4.25% |
| 85 years and over | 7,767 | 1.35%, see rank | 1.41% | 1.78% |
ACS 2006-2010 data
Total population: 552,860
Median Age (
see rank)
| Arapahoe County | 35.50 years old |
| Colorado | 35.80 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Arapahoe County | 34.40 years old |
| Colorado | 34.90 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Arapahoe County | 36.50 years old |
| Colorado | 36.80 years old |
| U.S. | 38.10 years old |
| | Arapahoe County | % of the Total Population | Colorado | U.S. |
| Under 5 years | 40,010 | 7.24%, see rank | 6.96% | 6.62% |
| 5 to 9 years | 41,111 | 7.44%, see rank | 6.93% | 6.62% |
| 10 to 14 years | 37,341 | 6.75%, see rank | 6.57% | 6.79% |
| 15 to 19 years | 38,205 | 6.91%, see rank | 6.97% | 7.28% |
| 20 to 24 years | 34,612 | 6.26%, see rank | 7.06% | 6.98% |
| 25 to 34 years | 80,884 | 14.63%, see rank | 14.33% | 13.22% |
| 35 to 44 years | 81,523 | 14.75%, see rank | 14.40% | 13.89% |
| 45 to 54 years | 84,256 | 15.24%, see rank | 14.99% | 14.57% |
| 55 to 64 years | 61,491 | 11.12%, see rank | 11.25% | 11.28% |
| 65 to 74 years | 29,096 | 5.26%, see rank | 5.81% | 6.74% |
| 75 to 84 | 17,359 | 3.14%, see rank | 3.40% | 4.30% |
| 85 years and over | 6,972 | 1.26%, see rank | 1.33% | 1.70% |
ACS 2005-2009 data
Total population: 544,157
Median Age (
see rank)
| Arapahoe County | 35.50 years old |
| Colorado | 35.50 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Arapahoe County | 34.30 years old |
| Colorado | 34.60 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Arapahoe County | 36.70 years old |
| Colorado | 36.50 years old |
| U.S. | 37.90 years old |
| | Arapahoe County | % of the Total Population | Colorado | U.S. |
| Under 5 years | 41,019 | 7.54%, see rank | 7.27% | 6.92% |
| 5 to 9 years | 39,844 | 7.32%, see rank | 6.78% | 6.59% |
| 10 to 14 years | 36,706 | 6.75%, see rank | 6.56% | 6.83% |
| 15 to 19 years | 37,502 | 6.89%, see rank | 6.88% | 7.15% |
| 20 to 24 years | 34,546 | 6.35%, see rank | 7.34% | 7.02% |
| 25 to 34 years | 77,977 | 14.33%, see rank | 14.45% | 13.42% |
| 35 to 44 years | 79,802 | 14.67%, see rank | 14.70% | 14.18% |
| 45 to 54 years | 82,553 | 15.17%, see rank | 15.01% | 14.48% |
| 55 to 64 years | 57,261 | 10.52%, see rank | 10.72% | 10.81% |
| 65 to 74 years | 29,964 | 5.51%, see rank | 5.58% | 6.50% |
| 75 to 84 | 19,331 | 3.55%, see rank | 3.39% | 4.40% |
| 85 years and over | 7,652 | 1.41%, see rank | 1.30% | 1.71% |
US Census 2000 data
Total population: 487,967
Median Age (
see rank)
| Arapahoe County | 34.50 years old |
| Colorado | 34.30 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Arapahoe County | 33.30 years old |
| Colorado | 33.20 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Arapahoe County | 35.60 years old |
| Colorado | 35.40 years old |
| U.S. | 36.50 years old |
| | Arapahoe County | % of the Total Population | Colorado | U.S. |
| Under 5 years | 33,720 | 6.91%, see rank | 6.92% | 6.81% |
| 5 to 9 years | 36,343 | 7.45%, see rank | 7.17% | 7.30% |
| 10 to 14 years | 37,944 | 7.78%, see rank | 7.24% | 7.29% |
| 15 to 19 years | 34,052 | 6.98%, see rank | 7.14% | 7.18% |
| 20 to 24 years | 30,092 | 6.17%, see rank | 7.12% | 6.74% |
| 25 to 34 years | 75,511 | 15.47%, see rank | 15.44% | 14.18% |
| 35 to 44 years | 86,013 | 17.63%, see rank | 17.13% | 16.04% |
| 45 to 54 years | 74,397 | 15.25%, see rank | 14.28% | 13.39% |
| 55 to 64 years | 37,966 | 7.78%, see rank | 7.89% | 8.63% |
| 65 to 74 years | 22,687 | 4.65%, see rank | 5.26% | 6.54% |
| 75 to 84 | 14,480 | 2.97%, see rank | 3.29% | 4.39% |
| 85 years and over | 4,762 | 0.98%, see rank | 1.12% | 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.
