Custer County Historical Age Data
ACS 2010-2014 data
Total population: 11,869
Median Age (
see rank)
| Custer County | 41.20 years old |
| Montana | 39.80 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Custer County | 39.00 years old |
| Montana | 38.60 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Custer County | 41.90 years old |
| Montana | 40.90 years old |
| U.S. | 38.80 years old |
| | Custer County | % of the Total Population | Montana | U.S. |
| Under 5 years | 789 | 6.65%, see rank | 6.07% | 6.36% |
| 5 to 9 years | 840 | 7.08%, see rank | 6.39% | 6.51% |
| 10 to 14 years | 562 | 4.74%, see rank | 6.00% | 6.59% |
| 15 to 19 years | 745 | 6.28%, see rank | 6.51% | 6.85% |
| 20 to 24 years | 713 | 6.01%, see rank | 7.07% | 7.13% |
| 25 to 34 years | 1,465 | 12.34%, see rank | 12.49% | 13.47% |
| 35 to 44 years | 1,242 | 10.46%, see rank | 11.27% | 12.96% |
| 45 to 54 years | 1,663 | 14.01%, see rank | 13.90% | 14.09% |
| 55 to 64 years | 1,715 | 14.45%, see rank | 14.59% | 12.29% |
| 65 to 74 years | 1,055 | 8.89%, see rank | 8.89% | 7.64% |
| 75 to 84 | 775 | 6.53%, see rank | 4.77% | 4.25% |
| 85 years and over | 305 | 2.57%, see rank | 2.05% | 1.85% |
US Census 2010 data
Total population: 11,699
Median Age (
see rank)
| Custer County | 42.10 years old |
| Montana | 39.80 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Custer County | 41.00 years old |
| Montana | 38.80 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Custer County | 43.10 years old |
| Montana | 41.00 years old |
| U.S. | 38.50 years old |
| | Custer County | % of the Total Population | Montana | U.S. |
| Under 5 years | 728 | 6.22%, see rank | 6.31% | 6.54% |
| 5 to 9 years | 680 | 5.81%, see rank | 6.14% | 6.59% |
| 10 to 14 years | 716 | 6.12%, see rank | 6.18% | 6.70% |
| 15 to 19 years | 864 | 7.39%, see rank | 6.74% | 7.14% |
| 20 to 24 years | 656 | 5.61%, see rank | 6.79% | 6.99% |
| 25 to 34 years | 1,295 | 11.07%, see rank | 12.42% | 13.30% |
| 35 to 44 years | 1,275 | 10.90%, see rank | 11.42% | 13.30% |
| 45 to 54 years | 1,800 | 15.39%, see rank | 15.14% | 14.58% |
| 55 to 64 years | 1,641 | 14.03%, see rank | 14.03% | 11.82% |
| 65 to 74 years | 971 | 8.30%, see rank | 8.16% | 7.03% |
| 75 to 84 | 744 | 6.36%, see rank | 4.65% | 4.23% |
| 85 years and over | 329 | 2.81%, see rank | 2.02% | 1.78% |
ACS 2008-2012 data
Total population: 11,706
Median Age (
see rank)
| Custer County | 41.70 years old |
| Montana | 39.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Custer County | 40.80 years old |
| Montana | 38.80 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Custer County | 42.20 years old |
| Montana | 41.00 years old |
| U.S. | 38.50 years old |
| | Custer County | % of the Total Population | Montana | U.S. |
| Under 5 years | 729 | 6.23%, see rank | 6.14% | 6.51% |
| 5 to 9 years | 830 | 7.09%, see rank | 6.31% | 6.57% |
| 10 to 14 years | 566 | 4.84%, see rank | 6.12% | 6.68% |
| 15 to 19 years | 790 | 6.75%, see rank | 6.76% | 7.09% |
| 20 to 24 years | 718 | 6.13%, see rank | 6.91% | 7.04% |
| 25 to 34 years | 1,309 | 11.18%, see rank | 12.28% | 13.32% |
| 35 to 44 years | 1,286 | 10.99%, see rank | 11.53% | 13.34% |
| 45 to 54 years | 1,784 | 15.24%, see rank | 14.91% | 14.44% |
| 55 to 64 years | 1,660 | 14.18%, see rank | 14.10% | 11.84% |
| 65 to 74 years | 969 | 8.28%, see rank | 8.22% | 7.12% |
| 75 to 84 | 826 | 7.06%, see rank | 4.74% | 4.25% |
| 85 years and over | 239 | 2.04%, see rank | 1.97% | 1.78% |
ACS 2006-2010 data
Total population: 11,548
Median Age (
see rank)
| Custer County | 41.80 years old |
| Montana | 39.70 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Custer County | 39.80 years old |
| Montana | 38.60 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Custer County | 42.80 years old |
| Montana | 40.90 years old |
| U.S. | 38.10 years old |
| | Custer County | % of the Total Population | Montana | U.S. |
| Under 5 years | 774 | 6.70%, see rank | 6.13% | 6.62% |
| 5 to 9 years | 721 | 6.24%, see rank | 6.20% | 6.62% |
| 10 to 14 years | 632 | 5.47%, see rank | 6.33% | 6.79% |
| 15 to 19 years | 817 | 7.07%, see rank | 7.14% | 7.28% |
| 20 to 24 years | 710 | 6.15%, see rank | 7.02% | 6.98% |
| 25 to 34 years | 1,156 | 10.01%, see rank | 11.87% | 13.22% |
| 35 to 44 years | 1,339 | 11.60%, see rank | 12.02% | 13.89% |
| 45 to 54 years | 1,800 | 15.59%, see rank | 15.65% | 14.57% |
| 55 to 64 years | 1,561 | 13.52%, see rank | 13.27% | 11.28% |
| 65 to 74 years | 973 | 8.43%, see rank | 7.69% | 6.74% |
| 75 to 84 | 798 | 6.91%, see rank | 4.86% | 4.30% |
| 85 years and over | 267 | 2.31%, see rank | 1.82% | 1.70% |
ACS 2005-2009 data
Total population: 11,129
Median Age (
see rank)
| Custer County | 42.20 years old |
| Montana | 39.00 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Custer County | 40.10 years old |
| Montana | 37.70 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Custer County | 44.20 years old |
| Montana | 40.20 years old |
| U.S. | 37.90 years old |
| | Custer County | % of the Total Population | Montana | U.S. |
| Under 5 years | 706 | 6.34%, see rank | 6.21% | 6.92% |
| 5 to 9 years | 705 | 6.33%, see rank | 6.08% | 6.59% |
| 10 to 14 years | 622 | 5.59%, see rank | 6.35% | 6.83% |
| 15 to 19 years | 776 | 6.97%, see rank | 7.34% | 7.15% |
| 20 to 24 years | 700 | 6.29%, see rank | 7.81% | 7.02% |
| 25 to 34 years | 1,080 | 9.70%, see rank | 11.76% | 13.42% |
| 35 to 44 years | 1,391 | 12.50%, see rank | 12.26% | 14.18% |
| 45 to 54 years | 1,754 | 15.76%, see rank | 15.63% | 14.48% |
| 55 to 64 years | 1,454 | 13.06%, see rank | 12.47% | 10.81% |
| 65 to 74 years | 879 | 7.90%, see rank | 7.28% | 6.50% |
| 75 to 84 | 724 | 6.51%, see rank | 4.90% | 4.40% |
| 85 years and over | 338 | 3.04%, see rank | 1.91% | 1.71% |
US Census 2000 data
Total population: 11,696
Median Age (
see rank)
| Custer County | 39.30 years old |
| Montana | 37.50 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Custer County | 38.40 years old |
| Montana | 36.60 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Custer County | 40.10 years old |
| Montana | 38.50 years old |
| U.S. | 36.50 years old |
| | Custer County | % of the Total Population | Montana | U.S. |
| Under 5 years | 689 | 5.89%, see rank | 6.08% | 6.81% |
| 5 to 9 years | 794 | 6.79%, see rank | 6.87% | 7.30% |
| 10 to 14 years | 839 | 7.17%, see rank | 7.68% | 7.29% |
| 15 to 19 years | 964 | 8.24%, see rank | 7.90% | 7.18% |
| 20 to 24 years | 637 | 5.45%, see rank | 6.47% | 6.74% |
| 25 to 34 years | 1,209 | 10.34%, see rank | 11.45% | 14.18% |
| 35 to 44 years | 1,787 | 15.28%, see rank | 15.73% | 16.04% |
| 45 to 54 years | 1,690 | 14.45%, see rank | 14.97% | 13.39% |
| 55 to 64 years | 1,088 | 9.30%, see rank | 9.43% | 8.63% |
| 65 to 74 years | 990 | 8.46%, see rank | 6.93% | 6.54% |
| 75 to 84 | 755 | 6.46%, see rank | 4.78% | 4.39% |
| 85 years and over | 254 | 2.17%, see rank | 1.70% | 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.
