Montgomery County Historical Age Data
ACS 2010-2014 data
Total population: 1,005,087
Median Age (
see rank)
Montgomery County | 38.50 years old |
Maryland | 38.10 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Montgomery County | 36.90 years old |
Maryland | 36.50 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Montgomery County | 40.00 years old |
Maryland | 39.60 years old |
U.S. | 38.80 years old |
| Montgomery County | % of the Total Population | Maryland | U.S. |
Under 5 years | 65,685 | 6.54%, see rank | 6.24% | 6.36% |
5 to 9 years | 64,923 | 6.46%, see rank | 6.30% | 6.51% |
10 to 14 years | 67,166 | 6.68%, see rank | 6.41% | 6.59% |
15 to 19 years | 62,491 | 6.22%, see rank | 6.73% | 6.85% |
20 to 24 years | 55,151 | 5.49%, see rank | 6.84% | 7.13% |
25 to 34 years | 137,750 | 13.71%, see rank | 13.60% | 13.47% |
35 to 44 years | 142,386 | 14.17%, see rank | 13.23% | 12.96% |
45 to 54 years | 152,432 | 15.17%, see rank | 15.18% | 14.09% |
55 to 64 years | 126,837 | 12.62%, see rank | 12.50% | 12.29% |
65 to 74 years | 70,706 | 7.03%, see rank | 7.33% | 7.64% |
75 to 84 | 38,304 | 3.81%, see rank | 3.88% | 4.25% |
85 years and over | 21,256 | 2.11%, see rank | 1.77% | 1.85% |
US Census 2010 data
Total population: 971,777
Median Age (
see rank)
Montgomery County | 38.50 years old |
Maryland | 38.00 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Montgomery County | 37.00 years old |
Maryland | 36.40 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Montgomery County | 39.90 years old |
Maryland | 39.30 years old |
U.S. | 38.50 years old |
| Montgomery County | % of the Total Population | Maryland | U.S. |
Under 5 years | 63,732 | 6.56%, see rank | 6.31% | 6.54% |
5 to 9 years | 64,300 | 6.62%, see rank | 6.35% | 6.59% |
10 to 14 years | 64,663 | 6.65%, see rank | 6.56% | 6.70% |
15 to 19 years | 59,862 | 6.16%, see rank | 7.04% | 7.14% |
20 to 24 years | 54,031 | 5.56%, see rank | 6.82% | 6.99% |
25 to 34 years | 132,393 | 13.62%, see rank | 13.20% | 13.30% |
35 to 44 years | 140,565 | 14.46%, see rank | 13.78% | 13.30% |
45 to 54 years | 153,481 | 15.79%, see rank | 15.63% | 14.58% |
55 to 64 years | 118,981 | 12.24%, see rank | 12.05% | 11.82% |
65 to 74 years | 62,541 | 6.44%, see rank | 6.69% | 7.03% |
75 to 84 | 37,797 | 3.89%, see rank | 3.87% | 4.23% |
85 years and over | 19,431 | 2.00%, see rank | 1.70% | 1.78% |
ACS 2008-2012 data
Total population: 974,824
Median Age (
see rank)
Montgomery County | 38.40 years old |
Maryland | 37.90 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Montgomery County | 36.80 years old |
Maryland | 36.30 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Montgomery County | 39.80 years old |
Maryland | 39.30 years old |
U.S. | 38.50 years old |
| Montgomery County | % of the Total Population | Maryland | U.S. |
Under 5 years | 64,073 | 6.57%, see rank | 6.31% | 6.51% |
5 to 9 years | 63,555 | 6.52%, see rank | 6.30% | 6.57% |
10 to 14 years | 64,562 | 6.62%, see rank | 6.57% | 6.68% |
15 to 19 years | 61,228 | 6.28%, see rank | 7.01% | 7.09% |
20 to 24 years | 53,772 | 5.52%, see rank | 6.83% | 7.04% |
25 to 34 years | 132,753 | 13.62%, see rank | 13.25% | 13.32% |
35 to 44 years | 141,478 | 14.51%, see rank | 13.82% | 13.34% |
45 to 54 years | 152,420 | 15.64%, see rank | 15.46% | 14.44% |
55 to 64 years | 119,827 | 12.29%, see rank | 12.07% | 11.84% |
65 to 74 years | 63,289 | 6.49%, see rank | 6.78% | 7.12% |
75 to 84 | 37,699 | 3.87%, see rank | 3.89% | 4.25% |
85 years and over | 20,168 | 2.07%, see rank | 1.70% | 1.78% |
ACS 2006-2010 data
Total population: 947,230
Median Age (
see rank)
Montgomery County | 38.20 years old |
Maryland | 37.60 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Montgomery County | 36.70 years old |
Maryland | 36.10 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Montgomery County | 39.60 years old |
Maryland | 38.90 years old |
U.S. | 38.10 years old |
| Montgomery County | % of the Total Population | Maryland | U.S. |
Under 5 years | 63,510 | 6.70%, see rank | 6.41% | 6.62% |
5 to 9 years | 62,325 | 6.58%, see rank | 6.42% | 6.62% |
10 to 14 years | 62,780 | 6.63%, see rank | 6.71% | 6.79% |
15 to 19 years | 60,537 | 6.39%, see rank | 7.23% | 7.28% |
20 to 24 years | 53,258 | 5.62%, see rank | 6.70% | 6.98% |
25 to 34 years | 126,209 | 13.32%, see rank | 12.99% | 13.22% |
35 to 44 years | 142,603 | 15.05%, see rank | 14.62% | 13.89% |
45 to 54 years | 150,571 | 15.90%, see rank | 15.49% | 14.57% |
55 to 64 years | 111,315 | 11.75%, see rank | 11.53% | 11.28% |
65 to 74 years | 57,606 | 6.08%, see rank | 6.36% | 6.74% |
75 to 84 | 38,070 | 4.02%, see rank | 3.96% | 4.30% |
85 years and over | 18,446 | 1.95%, see rank | 1.57% | 1.70% |
ACS 2005-2009 data
Total population: 946,172
Median Age (
see rank)
Montgomery County | 38.00 years old |
Maryland | 37.30 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Montgomery County | 36.40 years old |
Maryland | 35.80 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Montgomery County | 39.40 years old |
Maryland | 38.60 years old |
U.S. | 37.90 years old |
| Montgomery County | % of the Total Population | Maryland | U.S. |
Under 5 years | 68,348 | 7.22%, see rank | 6.68% | 6.92% |
5 to 9 years | 63,239 | 6.68%, see rank | 6.40% | 6.59% |
10 to 14 years | 62,704 | 6.63%, see rank | 6.81% | 6.83% |
15 to 19 years | 62,181 | 6.57%, see rank | 7.19% | 7.15% |
20 to 24 years | 56,844 | 6.01%, see rank | 6.60% | 7.02% |
25 to 34 years | 117,649 | 12.43%, see rank | 13.09% | 13.42% |
35 to 44 years | 143,796 | 15.20%, see rank | 15.00% | 14.18% |
45 to 54 years | 150,482 | 15.90%, see rank | 15.36% | 14.48% |
55 to 64 years | 107,624 | 11.37%, see rank | 11.10% | 10.81% |
65 to 74 years | 57,206 | 6.05%, see rank | 6.29% | 6.50% |
75 to 84 | 38,356 | 4.05%, see rank | 3.96% | 4.40% |
85 years and over | 17,743 | 1.88%, see rank | 1.51% | 1.71% |
US Census 2000 data
Total population: 873,341
Median Age (
see rank)
Montgomery County | 36.80 years old |
Maryland | 36.00 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Montgomery County | 35.60 years old |
Maryland | 34.90 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Montgomery County | 37.90 years old |
Maryland | 37.00 years old |
U.S. | 36.50 years old |
| Montgomery County | % of the Total Population | Maryland | U.S. |
Under 5 years | 60,173 | 6.89%, see rank | 6.67% | 6.81% |
5 to 9 years | 63,303 | 7.25%, see rank | 7.39% | 7.30% |
10 to 14 years | 63,202 | 7.24%, see rank | 7.40% | 7.29% |
15 to 19 years | 51,535 | 5.90%, see rank | 6.72% | 7.18% |
20 to 24 years | 43,684 | 5.00%, see rank | 5.93% | 6.74% |
25 to 34 years | 126,567 | 14.49%, see rank | 14.13% | 14.18% |
35 to 44 years | 155,708 | 17.83%, see rank | 17.30% | 16.04% |
45 to 54 years | 132,870 | 15.21%, see rank | 14.26% | 13.39% |
55 to 64 years | 78,142 | 8.95%, see rank | 8.88% | 8.63% |
65 to 74 years | 50,103 | 5.74%, see rank | 6.07% | 6.54% |
75 to 84 | 35,071 | 4.02%, see rank | 3.99% | 4.39% |
85 years and over | 12,983 | 1.49%, see rank | 1.26% | 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.