Chester County Historical Age Data
ACS 2010-2014 data
Total population: 506,422
Median Age (
see rank)
Chester County | 39.90 years old |
Pennsylvania | 40.40 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Chester County | 38.50 years old |
Pennsylvania | 38.90 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Chester County | 41.00 years old |
Pennsylvania | 41.90 years old |
U.S. | 38.80 years old |
| Chester County | % of the Total Population | Pennsylvania | U.S. |
Under 5 years | 29,920 | 5.91%, see rank | 5.64% | 6.36% |
5 to 9 years | 34,293 | 6.77%, see rank | 5.89% | 6.51% |
10 to 14 years | 35,725 | 7.05%, see rank | 6.07% | 6.59% |
15 to 19 years | 36,938 | 7.29%, see rank | 6.84% | 6.85% |
20 to 24 years | 30,696 | 6.06%, see rank | 6.86% | 7.13% |
25 to 34 years | 56,488 | 11.15%, see rank | 12.38% | 13.47% |
35 to 44 years | 66,140 | 13.06%, see rank | 12.21% | 12.96% |
45 to 54 years | 80,801 | 15.96%, see rank | 14.70% | 14.09% |
55 to 64 years | 66,015 | 13.04%, see rank | 13.41% | 12.29% |
65 to 74 years | 38,267 | 7.56%, see rank | 8.32% | 7.64% |
75 to 84 | 20,839 | 4.11%, see rank | 5.18% | 4.25% |
85 years and over | 10,300 | 2.03%, see rank | 2.50% | 1.85% |
US Census 2010 data
Total population: 498,886
Median Age (
see rank)
Chester County | 39.30 years old |
Pennsylvania | 40.10 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Chester County | 38.10 years old |
Pennsylvania | 38.70 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Chester County | 40.30 years old |
Pennsylvania | 41.50 years old |
U.S. | 38.50 years old |
| Chester County | % of the Total Population | Pennsylvania | U.S. |
Under 5 years | 31,126 | 6.24%, see rank | 5.74% | 6.54% |
5 to 9 years | 34,929 | 7.00%, see rank | 5.93% | 6.59% |
10 to 14 years | 35,717 | 7.16%, see rank | 6.23% | 6.70% |
15 to 19 years | 36,401 | 7.30%, see rank | 7.13% | 7.14% |
20 to 24 years | 30,284 | 6.07%, see rank | 6.88% | 6.99% |
25 to 34 years | 54,473 | 10.92%, see rank | 11.90% | 13.30% |
35 to 44 years | 68,933 | 13.82%, see rank | 12.72% | 13.30% |
45 to 54 years | 81,576 | 16.35%, see rank | 15.28% | 14.58% |
55 to 64 years | 61,572 | 12.34%, see rank | 12.77% | 11.82% |
65 to 74 years | 34,016 | 6.82%, see rank | 7.71% | 7.03% |
75 to 84 | 20,592 | 4.13%, see rank | 5.31% | 4.23% |
85 years and over | 9,267 | 1.86%, see rank | 2.41% | 1.78% |
ACS 2008-2012 data
Total population: 499,548
Median Age (
see rank)
Chester County | 39.40 years old |
Pennsylvania | 40.10 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Chester County | 38.00 years old |
Pennsylvania | 38.60 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Chester County | 40.50 years old |
Pennsylvania | 41.50 years old |
U.S. | 38.50 years old |
| Chester County | % of the Total Population | Pennsylvania | U.S. |
Under 5 years | 30,829 | 6.17%, see rank | 5.71% | 6.51% |
5 to 9 years | 35,184 | 7.04%, see rank | 5.96% | 6.57% |
10 to 14 years | 35,074 | 7.02%, see rank | 6.19% | 6.68% |
15 to 19 years | 37,073 | 7.42%, see rank | 7.12% | 7.09% |
20 to 24 years | 29,657 | 5.94%, see rank | 6.83% | 7.04% |
25 to 34 years | 54,858 | 10.98%, see rank | 11.98% | 13.32% |
35 to 44 years | 69,117 | 13.84%, see rank | 12.73% | 13.34% |
45 to 54 years | 80,964 | 16.21%, see rank | 15.14% | 14.44% |
55 to 64 years | 61,860 | 12.38%, see rank | 12.80% | 11.84% |
65 to 74 years | 34,609 | 6.93%, see rank | 7.80% | 7.12% |
75 to 84 | 21,168 | 4.24%, see rank | 5.32% | 4.25% |
85 years and over | 9,155 | 1.83%, see rank | 2.41% | 1.78% |
ACS 2006-2010 data
Total population: 490,571
Median Age (
see rank)
Chester County | 38.80 years old |
Pennsylvania | 39.80 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Chester County | 37.70 years old |
Pennsylvania | 38.30 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Chester County | 39.80 years old |
Pennsylvania | 41.20 years old |
U.S. | 38.10 years old |
| Chester County | % of the Total Population | Pennsylvania | U.S. |
Under 5 years | 31,253 | 6.37%, see rank | 5.77% | 6.62% |
5 to 9 years | 35,394 | 7.21%, see rank | 6.03% | 6.62% |
10 to 14 years | 34,333 | 7.00%, see rank | 6.36% | 6.79% |
15 to 19 years | 36,481 | 7.44%, see rank | 7.30% | 7.28% |
20 to 24 years | 29,147 | 5.94%, see rank | 6.69% | 6.98% |
25 to 34 years | 53,560 | 10.92%, see rank | 11.76% | 13.22% |
35 to 44 years | 72,311 | 14.74%, see rank | 13.40% | 13.89% |
45 to 54 years | 79,465 | 16.20%, see rank | 15.32% | 14.57% |
55 to 64 years | 57,374 | 11.70%, see rank | 12.10% | 11.28% |
65 to 74 years | 31,548 | 6.43%, see rank | 7.46% | 6.74% |
75 to 84 | 21,361 | 4.35%, see rank | 5.55% | 4.30% |
85 years and over | 8,344 | 1.70%, see rank | 2.27% | 1.70% |
ACS 2005-2009 data
Total population: 486,301
Median Age (
see rank)
Chester County | 38.60 years old |
Pennsylvania | 39.60 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Chester County | 37.80 years old |
Pennsylvania | 38.00 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Chester County | 39.50 years old |
Pennsylvania | 41.00 years old |
U.S. | 37.90 years old |
| Chester County | % of the Total Population | Pennsylvania | U.S. |
Under 5 years | 32,327 | 6.65%, see rank | 5.91% | 6.92% |
5 to 9 years | 33,516 | 6.89%, see rank | 5.95% | 6.59% |
10 to 14 years | 34,194 | 7.03%, see rank | 6.41% | 6.83% |
15 to 19 years | 36,867 | 7.58%, see rank | 7.24% | 7.15% |
20 to 24 years | 29,157 | 6.00%, see rank | 6.49% | 7.02% |
25 to 34 years | 52,654 | 10.83%, see rank | 12.00% | 13.42% |
35 to 44 years | 74,435 | 15.31%, see rank | 13.81% | 14.18% |
45 to 54 years | 78,725 | 16.19%, see rank | 15.31% | 14.48% |
55 to 64 years | 54,738 | 11.26%, see rank | 11.60% | 10.81% |
65 to 74 years | 30,359 | 6.24%, see rank | 7.32% | 6.50% |
75 to 84 | 21,233 | 4.37%, see rank | 5.69% | 4.40% |
85 years and over | 8,096 | 1.66%, see rank | 2.26% | 1.71% |
US Census 2000 data
Total population: 433,501
Median Age (
see rank)
Chester County | 36.90 years old |
Pennsylvania | 38.00 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Chester County | 36.00 years old |
Pennsylvania | 36.50 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Chester County | 37.80 years old |
Pennsylvania | 39.40 years old |
U.S. | 36.50 years old |
| Chester County | % of the Total Population | Pennsylvania | U.S. |
Under 5 years | 29,330 | 6.77%, see rank | 5.93% | 6.81% |
5 to 9 years | 32,556 | 7.51%, see rank | 6.74% | 7.30% |
10 to 14 years | 33,105 | 7.64%, see rank | 7.03% | 7.29% |
15 to 19 years | 29,600 | 6.83%, see rank | 6.93% | 7.18% |
20 to 24 years | 23,410 | 5.40%, see rank | 6.08% | 6.74% |
25 to 34 years | 54,720 | 12.62%, see rank | 12.71% | 14.18% |
35 to 44 years | 76,903 | 17.74%, see rank | 15.86% | 16.04% |
45 to 54 years | 64,406 | 14.86%, see rank | 13.88% | 13.39% |
55 to 64 years | 38,794 | 8.95%, see rank | 9.21% | 8.63% |
65 to 74 years | 27,128 | 6.26%, see rank | 7.89% | 6.54% |
75 to 84 | 17,782 | 4.10%, see rank | 5.80% | 4.39% |
85 years and over | 5,767 | 1.33%, see rank | 1.93% | 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.