Cos Cob, CT Historical Age Data
ACS 2010-2014 data
Total population: 6,265
Median Age (
see rank)
| Cos Cob, CT | 41.20 years old |
| Connecticut | 40.30 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Cos Cob, CT | 41.50 years old |
| Connecticut | 38.70 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Cos Cob, CT | 41.20 years old |
| Connecticut | 41.60 years old |
| U.S. | 38.80 years old |
| | Cos Cob, CT | % of the Total Population | Connecticut | U.S. |
| Under 5 years | 463 | 7.39%, see rank | 5.41% | 6.36% |
| 5 to 9 years | 523 | 8.35%, see rank | 6.05% | 6.51% |
| 10 to 14 years | 371 | 5.92%, see rank | 6.53% | 6.59% |
| 15 to 19 years | 438 | 6.99%, see rank | 7.11% | 6.85% |
| 20 to 24 years | 316 | 5.04%, see rank | 6.53% | 7.13% |
| 25 to 34 years | 435 | 6.94%, see rank | 12.06% | 13.47% |
| 35 to 44 years | 1,035 | 16.52%, see rank | 12.78% | 12.96% |
| 45 to 54 years | 1,108 | 17.69%, see rank | 15.69% | 14.09% |
| 55 to 64 years | 763 | 12.18%, see rank | 13.04% | 12.29% |
| 65 to 74 years | 449 | 7.17%, see rank | 7.81% | 7.64% |
| 75 to 84 | 255 | 4.07%, see rank | 4.54% | 4.25% |
| 85 years and over | 109 | 1.74%, see rank | 2.44% | 1.85% |
US Census 2010 data
Total population: 6,770
Median Age (
see rank)
| Cos Cob, CT | 40.80 years old |
| Connecticut | 40.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Cos Cob, CT | 40.00 years old |
| Connecticut | 38.50 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Cos Cob, CT | 41.40 years old |
| Connecticut | 41.30 years old |
| U.S. | 38.50 years old |
| | Cos Cob, CT | % of the Total Population | Connecticut | U.S. |
| Under 5 years | 512 | 7.56%, see rank | 5.65% | 6.54% |
| 5 to 9 years | 562 | 8.30%, see rank | 6.23% | 6.59% |
| 10 to 14 years | 496 | 7.33%, see rank | 6.72% | 6.70% |
| 15 to 19 years | 400 | 5.91%, see rank | 7.02% | 7.14% |
| 20 to 24 years | 202 | 2.98%, see rank | 6.38% | 6.99% |
| 25 to 34 years | 584 | 8.63%, see rank | 11.76% | 13.30% |
| 35 to 44 years | 1,162 | 17.16%, see rank | 13.55% | 13.30% |
| 45 to 54 years | 1,120 | 16.54%, see rank | 16.10% | 14.58% |
| 55 to 64 years | 832 | 12.29%, see rank | 12.41% | 11.82% |
| 65 to 74 years | 459 | 6.78%, see rank | 7.13% | 7.03% |
| 75 to 84 | 315 | 4.65%, see rank | 4.66% | 4.23% |
| 85 years and over | 126 | 1.86%, see rank | 2.38% | 1.78% |
ACS 2008-2012 data
Total population: 6,605
Median Age (
see rank)
| Cos Cob, CT | 42.30 years old |
| Connecticut | 40.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Cos Cob, CT | 40.00 years old |
| Connecticut | 38.50 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Cos Cob, CT | 43.60 years old |
| Connecticut | 41.20 years old |
| U.S. | 38.50 years old |
| | Cos Cob, CT | % of the Total Population | Connecticut | U.S. |
| Under 5 years | 580 | 8.78%, see rank | 5.60% | 6.51% |
| 5 to 9 years | 521 | 7.89%, see rank | 6.21% | 6.57% |
| 10 to 14 years | 394 | 5.97%, see rank | 6.69% | 6.68% |
| 15 to 19 years | 348 | 5.27%, see rank | 7.12% | 7.09% |
| 20 to 24 years | 294 | 4.45%, see rank | 6.32% | 7.04% |
| 25 to 34 years | 578 | 8.75%, see rank | 11.80% | 13.32% |
| 35 to 44 years | 857 | 12.98%, see rank | 13.58% | 13.34% |
| 45 to 54 years | 1,351 | 20.45%, see rank | 15.96% | 14.44% |
| 55 to 64 years | 830 | 12.57%, see rank | 12.44% | 11.84% |
| 65 to 74 years | 455 | 6.89%, see rank | 7.24% | 7.12% |
| 75 to 84 | 241 | 3.65%, see rank | 4.66% | 4.25% |
| 85 years and over | 156 | 2.36%, see rank | 2.37% | 1.78% |
ACS 2006-2010 data
Total population: 6,126
Median Age (
see rank)
| Cos Cob, CT | 44.00 years old |
| Connecticut | 39.50 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Cos Cob, CT | 44.00 years old |
| Connecticut | 38.10 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Cos Cob, CT | 43.90 years old |
| Connecticut | 40.80 years old |
| U.S. | 38.10 years old |
| | Cos Cob, CT | % of the Total Population | Connecticut | U.S. |
| Under 5 years | 435 | 7.10%, see rank | 5.79% | 6.62% |
| 5 to 9 years | 414 | 6.76%, see rank | 6.36% | 6.62% |
| 10 to 14 years | 441 | 7.20%, see rank | 6.83% | 6.79% |
| 15 to 19 years | 346 | 5.65%, see rank | 7.14% | 7.28% |
| 20 to 24 years | 241 | 3.93%, see rank | 6.24% | 6.98% |
| 25 to 34 years | 469 | 7.66%, see rank | 11.57% | 13.22% |
| 35 to 44 years | 855 | 13.96%, see rank | 14.47% | 13.89% |
| 45 to 54 years | 1,285 | 20.98%, see rank | 15.91% | 14.57% |
| 55 to 64 years | 837 | 13.66%, see rank | 11.82% | 11.28% |
| 65 to 74 years | 467 | 7.62%, see rank | 6.77% | 6.74% |
| 75 to 84 | 201 | 3.28%, see rank | 4.80% | 4.30% |
| 85 years and over | 135 | 2.20%, see rank | 2.30% | 1.70% |
* 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.
