Boulder, CO Historical Age Data
ACS 2010-2014 data
Total population: 102,002
Median Age (
see rank)
Boulder, CO | 28.30 years old |
Colorado | 36.20 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Boulder, CO | 27.40 years old |
Colorado | 35.30 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Boulder, CO | 29.80 years old |
Colorado | 37.30 years old |
U.S. | 38.80 years old |
| Boulder, CO | % of the Total Population | Colorado | U.S. |
Under 5 years | 4,032 | 3.95%, see rank | 6.49% | 6.36% |
5 to 9 years | 4,088 | 4.01%, see rank | 6.79% | 6.51% |
10 to 14 years | 3,776 | 3.70%, see rank | 6.63% | 6.59% |
15 to 19 years | 11,797 | 11.57%, see rank | 6.57% | 6.85% |
20 to 24 years | 20,890 | 20.48%, see rank | 7.07% | 7.13% |
25 to 34 years | 16,240 | 15.92%, see rank | 14.71% | 13.47% |
35 to 44 years | 11,547 | 11.32%, see rank | 13.67% | 12.96% |
45 to 54 years | 10,528 | 10.32%, see rank | 13.93% | 14.09% |
55 to 64 years | 9,215 | 9.03%, see rank | 12.31% | 12.29% |
65 to 74 years | 5,472 | 5.36%, see rank | 6.91% | 7.64% |
75 to 84 | 2,592 | 2.54%, see rank | 3.46% | 4.25% |
85 years and over | 1,825 | 1.79%, see rank | 1.45% | 1.85% |
US Census 2010 data
Total population: 97,385
Median Age (
see rank)
Boulder, CO | 28.70 years old |
Colorado | 36.10 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Boulder, CO | 27.80 years old |
Colorado | 35.10 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Boulder, CO | 29.80 years old |
Colorado | 37.10 years old |
U.S. | 38.50 years old |
| Boulder, CO | % of the Total Population | Colorado | U.S. |
Under 5 years | 3,955 | 4.06%, see rank | 6.84% | 6.54% |
5 to 9 years | 3,867 | 3.97%, see rank | 6.93% | 6.59% |
10 to 14 years | 3,552 | 3.65%, see rank | 6.61% | 6.70% |
15 to 19 years | 10,681 | 10.97%, see rank | 6.75% | 7.14% |
20 to 24 years | 19,814 | 20.35%, see rank | 6.93% | 6.99% |
25 to 34 years | 15,569 | 15.99%, see rank | 14.44% | 13.30% |
35 to 44 years | 11,420 | 11.73%, see rank | 13.91% | 13.30% |
45 to 54 years | 10,505 | 10.79%, see rank | 14.77% | 14.58% |
55 to 64 years | 9,318 | 9.57%, see rank | 11.88% | 11.82% |
65 to 74 years | 4,475 | 4.60%, see rank | 6.16% | 7.03% |
75 to 84 | 2,659 | 2.73%, see rank | 3.38% | 4.23% |
85 years and over | 1,570 | 1.61%, see rank | 1.38% | 1.78% |
ACS 2008-2012 data
Total population: 99,177
Median Age (
see rank)
Boulder, CO | 28.40 years old |
Colorado | 36.10 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Boulder, CO | 27.90 years old |
Colorado | 35.10 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Boulder, CO | 29.10 years old |
Colorado | 37.10 years old |
U.S. | 38.50 years old |
| Boulder, CO | % of the Total Population | Colorado | U.S. |
Under 5 years | 4,194 | 4.23%, see rank | 6.76% | 6.51% |
5 to 9 years | 4,057 | 4.09%, see rank | 6.91% | 6.57% |
10 to 14 years | 3,732 | 3.76%, see rank | 6.56% | 6.68% |
15 to 19 years | 11,447 | 11.54%, see rank | 6.75% | 7.09% |
20 to 24 years | 19,882 | 20.05%, see rank | 7.00% | 7.04% |
25 to 34 years | 15,081 | 15.21%, see rank | 14.49% | 13.32% |
35 to 44 years | 12,030 | 12.13%, see rank | 13.95% | 13.34% |
45 to 54 years | 10,512 | 10.60%, see rank | 14.59% | 14.44% |
55 to 64 years | 9,320 | 9.40%, see rank | 11.90% | 11.84% |
65 to 74 years | 4,517 | 4.55%, see rank | 6.27% | 7.12% |
75 to 84 | 2,810 | 2.83%, see rank | 3.39% | 4.25% |
85 years and over | 1,595 | 1.61%, see rank | 1.41% | 1.78% |
ACS 2006-2010 data
Total population: 97,050
Median Age (
see rank)
Boulder, CO | 28.80 years old |
Colorado | 35.80 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Boulder, CO | 27.90 years old |
Colorado | 34.90 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Boulder, CO | 30.20 years old |
Colorado | 36.80 years old |
U.S. | 38.10 years old |
| Boulder, CO | % of the Total Population | Colorado | U.S. |
Under 5 years | 4,002 | 4.12%, see rank | 6.96% | 6.62% |
5 to 9 years | 4,076 | 4.20%, see rank | 6.93% | 6.62% |
10 to 14 years | 3,455 | 3.56%, see rank | 6.57% | 6.79% |
15 to 19 years | 11,232 | 11.57%, see rank | 6.97% | 7.28% |
20 to 24 years | 18,858 | 19.43%, see rank | 7.06% | 6.98% |
25 to 34 years | 15,009 | 15.47%, see rank | 14.33% | 13.22% |
35 to 44 years | 12,184 | 12.55%, see rank | 14.40% | 13.89% |
45 to 54 years | 10,225 | 10.54%, see rank | 14.99% | 14.57% |
55 to 64 years | 9,275 | 9.56%, see rank | 11.25% | 11.28% |
65 to 74 years | 4,125 | 4.25%, see rank | 5.81% | 6.74% |
75 to 84 | 2,849 | 2.94%, see rank | 3.40% | 4.30% |
85 years and over | 1,760 | 1.81%, see rank | 1.33% | 1.70% |
ACS 2005-2009 data
Total population: 98,737
Median Age (
see rank)
Boulder, CO | 27.90 years old |
Colorado | 35.50 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Boulder, CO | 27.20 years old |
Colorado | 34.60 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Boulder, CO | 28.40 years old |
Colorado | 36.50 years old |
U.S. | 37.90 years old |
| Boulder, CO | % of the Total Population | Colorado | U.S. |
Under 5 years | 3,958 | 4.01%, see rank | 7.27% | 6.92% |
5 to 9 years | 3,849 | 3.90%, see rank | 6.78% | 6.59% |
10 to 14 years | 3,205 | 3.25%, see rank | 6.56% | 6.83% |
15 to 19 years | 11,733 | 11.88%, see rank | 6.88% | 7.15% |
20 to 24 years | 22,256 | 22.54%, see rank | 7.34% | 7.02% |
25 to 34 years | 13,242 | 13.41%, see rank | 14.45% | 13.42% |
35 to 44 years | 12,036 | 12.19%, see rank | 14.70% | 14.18% |
45 to 54 years | 10,946 | 11.09%, see rank | 15.01% | 14.48% |
55 to 64 years | 9,470 | 9.59%, see rank | 10.72% | 10.81% |
65 to 74 years | 3,946 | 4.00%, see rank | 5.58% | 6.50% |
75 to 84 | 2,815 | 2.85%, see rank | 3.39% | 4.40% |
85 years and over | 1,281 | 1.30%, see rank | 1.30% | 1.71% |
US Census 2000 data
Total population: 94,673
Median Age (
see rank)
Boulder, CO | 29.00 years old |
Colorado | 34.30 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Boulder, CO | 28.30 years old |
Colorado | 33.20 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Boulder, CO | 30.00 years old |
Colorado | 35.40 years old |
U.S. | 36.50 years old |
| Boulder, CO | % of the Total Population | Colorado | U.S. |
Under 5 years | 3,888 | 4.11%, see rank | 6.92% | 6.81% |
5 to 9 years | 3,831 | 4.05%, see rank | 7.17% | 7.30% |
10 to 14 years | 3,947 | 4.17%, see rank | 7.24% | 7.29% |
15 to 19 years | 9,487 | 10.02%, see rank | 7.14% | 7.18% |
20 to 24 years | 17,413 | 18.39%, see rank | 7.12% | 6.74% |
25 to 34 years | 18,437 | 19.47%, see rank | 15.44% | 14.18% |
35 to 44 years | 12,840 | 13.56%, see rank | 17.13% | 16.04% |
45 to 54 years | 11,774 | 12.44%, see rank | 14.28% | 13.39% |
55 to 64 years | 5,665 | 5.98%, see rank | 7.89% | 8.63% |
65 to 74 years | 3,474 | 3.67%, see rank | 5.26% | 6.54% |
75 to 84 | 2,641 | 2.79%, see rank | 3.29% | 4.39% |
85 years and over | 1,276 | 1.35%, 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.