Los Alamos County Historical Age Data
ACS 2010-2014 data
Total population: 17,974
Median Age (
see rank)
| Los Alamos County | 43.10 years old |
| New Mexico | 36.80 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Los Alamos County | 42.10 years old |
| New Mexico | 35.40 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Los Alamos County | 44.70 years old |
| New Mexico | 38.20 years old |
| U.S. | 38.80 years old |
| | Los Alamos County | % of the Total Population | New Mexico | U.S. |
| Under 5 years | 894 | 4.97%, see rank | 6.73% | 6.36% |
| 5 to 9 years | 1,077 | 5.99%, see rank | 6.85% | 6.51% |
| 10 to 14 years | 1,383 | 7.69%, see rank | 6.91% | 6.59% |
| 15 to 19 years | 1,342 | 7.47%, see rank | 6.92% | 6.85% |
| 20 to 24 years | 611 | 3.40%, see rank | 7.21% | 7.13% |
| 25 to 34 years | 1,781 | 9.91%, see rank | 13.20% | 13.47% |
| 35 to 44 years | 2,216 | 12.33%, see rank | 11.85% | 12.96% |
| 45 to 54 years | 3,026 | 16.84%, see rank | 13.33% | 14.09% |
| 55 to 64 years | 2,806 | 15.61%, see rank | 12.81% | 12.29% |
| 65 to 74 years | 1,598 | 8.89%, see rank | 8.19% | 7.64% |
| 75 to 84 | 840 | 4.67%, see rank | 4.38% | 4.25% |
| 85 years and over | 400 | 2.23%, see rank | 1.63% | 1.85% |
US Census 2010 data
Total population: 17,950
Median Age (
see rank)
| Los Alamos County | 44.30 years old |
| New Mexico | 36.70 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Los Alamos County | 43.90 years old |
| New Mexico | 35.30 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Los Alamos County | 44.80 years old |
| New Mexico | 38.00 years old |
| U.S. | 38.50 years old |
| | Los Alamos County | % of the Total Population | New Mexico | U.S. |
| Under 5 years | 960 | 5.35%, see rank | 7.04% | 6.54% |
| 5 to 9 years | 1,215 | 6.77%, see rank | 6.96% | 6.59% |
| 10 to 14 years | 1,307 | 7.28%, see rank | 6.88% | 6.70% |
| 15 to 19 years | 1,126 | 6.27%, see rank | 7.28% | 7.14% |
| 20 to 24 years | 498 | 2.77%, see rank | 6.91% | 6.99% |
| 25 to 34 years | 1,713 | 9.54%, see rank | 12.98% | 13.30% |
| 35 to 44 years | 2,327 | 12.96%, see rank | 12.07% | 13.30% |
| 45 to 54 years | 3,347 | 18.65%, see rank | 14.18% | 14.58% |
| 55 to 64 years | 2,771 | 15.44%, see rank | 12.48% | 11.82% |
| 65 to 74 years | 1,440 | 8.02%, see rank | 7.47% | 7.03% |
| 75 to 84 | 848 | 4.72%, see rank | 4.20% | 4.23% |
| 85 years and over | 398 | 2.22%, see rank | 1.55% | 1.78% |
ACS 2008-2012 data
Total population: 18,008
Median Age (
see rank)
| Los Alamos County | 44.00 years old |
| New Mexico | 36.60 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Los Alamos County | 43.70 years old |
| New Mexico | 35.20 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Los Alamos County | 44.30 years old |
| New Mexico | 38.00 years old |
| U.S. | 38.50 years old |
| | Los Alamos County | % of the Total Population | New Mexico | U.S. |
| Under 5 years | 953 | 5.29%, see rank | 7.00% | 6.51% |
| 5 to 9 years | 1,070 | 5.94%, see rank | 6.95% | 6.57% |
| 10 to 14 years | 1,458 | 8.10%, see rank | 6.88% | 6.68% |
| 15 to 19 years | 1,246 | 6.92%, see rank | 7.23% | 7.09% |
| 20 to 24 years | 556 | 3.09%, see rank | 7.04% | 7.04% |
| 25 to 34 years | 1,724 | 9.57%, see rank | 13.01% | 13.32% |
| 35 to 44 years | 2,357 | 13.09%, see rank | 12.10% | 13.34% |
| 45 to 54 years | 3,177 | 17.64%, see rank | 13.94% | 14.44% |
| 55 to 64 years | 2,838 | 15.76%, see rank | 12.47% | 11.84% |
| 65 to 74 years | 1,408 | 7.82%, see rank | 7.59% | 7.12% |
| 75 to 84 | 902 | 5.01%, see rank | 4.22% | 4.25% |
| 85 years and over | 319 | 1.77%, see rank | 1.58% | 1.78% |
ACS 2006-2010 data
Total population: 18,091
Median Age (
see rank)
| Los Alamos County | 43.50 years old |
| New Mexico | 36.40 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Los Alamos County | 42.90 years old |
| New Mexico | 35.10 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Los Alamos County | 43.90 years old |
| New Mexico | 37.60 years old |
| U.S. | 38.10 years old |
| | Los Alamos County | % of the Total Population | New Mexico | U.S. |
| Under 5 years | 961 | 5.31%, see rank | 7.12% | 6.62% |
| 5 to 9 years | 1,346 | 7.44%, see rank | 6.90% | 6.62% |
| 10 to 14 years | 1,255 | 6.94%, see rank | 6.94% | 6.79% |
| 15 to 19 years | 1,172 | 6.48%, see rank | 7.51% | 7.28% |
| 20 to 24 years | 527 | 2.91%, see rank | 7.12% | 6.98% |
| 25 to 34 years | 1,659 | 9.17%, see rank | 12.72% | 13.22% |
| 35 to 44 years | 2,597 | 14.36%, see rank | 12.65% | 13.89% |
| 45 to 54 years | 3,359 | 18.57%, see rank | 14.29% | 14.57% |
| 55 to 64 years | 2,715 | 15.01%, see rank | 11.91% | 11.28% |
| 65 to 74 years | 1,307 | 7.22%, see rank | 7.18% | 6.74% |
| 75 to 84 | 898 | 4.96%, see rank | 4.14% | 4.30% |
| 85 years and over | 295 | 1.63%, see rank | 1.51% | 1.70% |
ACS 2005-2009 data
Total population: 18,431
Median Age (
see rank)
| Los Alamos County | 42.60 years old |
| New Mexico | 35.50 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Los Alamos County | 42.20 years old |
| New Mexico | 34.10 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Los Alamos County | 43.10 years old |
| New Mexico | 37.00 years old |
| U.S. | 37.90 years old |
| | Los Alamos County | % of the Total Population | New Mexico | U.S. |
| Under 5 years | 995 | 5.40%, see rank | 7.41% | 6.92% |
| 5 to 9 years | 1,334 | 7.24%, see rank | 6.78% | 6.59% |
| 10 to 14 years | 1,248 | 6.77%, see rank | 7.02% | 6.83% |
| 15 to 19 years | 1,327 | 7.20%, see rank | 7.40% | 7.15% |
| 20 to 24 years | 583 | 3.16%, see rank | 7.31% | 7.02% |
| 25 to 34 years | 1,815 | 9.85%, see rank | 13.39% | 13.42% |
| 35 to 44 years | 2,735 | 14.84%, see rank | 12.91% | 14.18% |
| 45 to 54 years | 3,397 | 18.43%, see rank | 14.04% | 14.48% |
| 55 to 64 years | 2,573 | 13.96%, see rank | 11.11% | 10.81% |
| 65 to 74 years | 1,254 | 6.80%, see rank | 6.74% | 6.50% |
| 75 to 84 | 894 | 4.85%, see rank | 4.33% | 4.40% |
| 85 years and over | 276 | 1.50%, see rank | 1.57% | 1.71% |
US Census 2000 data
Total population: 18,343
Median Age (
see rank)
| Los Alamos County | 40.80 years old |
| New Mexico | 34.60 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Los Alamos County | 40.40 years old |
| New Mexico | 33.40 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Los Alamos County | 41.20 years old |
| New Mexico | 35.60 years old |
| U.S. | 36.50 years old |
| | Los Alamos County | % of the Total Population | New Mexico | U.S. |
| Under 5 years | 1,021 | 5.57%, see rank | 7.18% | 6.81% |
| 5 to 9 years | 1,303 | 7.10%, see rank | 7.76% | 7.30% |
| 10 to 14 years | 1,532 | 8.35%, see rank | 8.10% | 7.29% |
| 15 to 19 years | 1,215 | 6.62%, see rank | 8.01% | 7.18% |
| 20 to 24 years | 463 | 2.52%, see rank | 6.67% | 6.74% |
| 25 to 34 years | 1,864 | 10.16%, see rank | 12.87% | 14.18% |
| 35 to 44 years | 3,217 | 17.54%, see rank | 15.50% | 16.04% |
| 45 to 54 years | 3,226 | 17.59%, see rank | 13.51% | 13.39% |
| 55 to 64 years | 2,282 | 12.44%, see rank | 8.73% | 8.63% |
| 65 to 74 years | 1,228 | 6.69%, see rank | 6.47% | 6.54% |
| 75 to 84 | 821 | 4.48%, see rank | 3.91% | 4.39% |
| 85 years and over | 171 | 0.93%, see rank | 1.28% | 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.
