Jefferson County Historical Age Data
ACS 2010-2014 data
Total population: 84,201
Median Age (
see rank)
Jefferson County | 38.80 years old |
Wisconsin | 38.80 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Jefferson County | 38.50 years old |
Wisconsin | 37.70 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Jefferson County | 39.30 years old |
Wisconsin | 40.00 years old |
U.S. | 38.80 years old |
| Jefferson County | % of the Total Population | Wisconsin | U.S. |
Under 5 years | 4,840 | 5.75%, see rank | 6.07% | 6.36% |
5 to 9 years | 5,130 | 6.09%, see rank | 6.39% | 6.51% |
10 to 14 years | 5,925 | 7.04%, see rank | 6.55% | 6.59% |
15 to 19 years | 6,675 | 7.93%, see rank | 6.85% | 6.85% |
20 to 24 years | 5,373 | 6.38%, see rank | 6.87% | 7.13% |
25 to 34 years | 9,948 | 11.81%, see rank | 12.72% | 13.47% |
35 to 44 years | 10,816 | 12.85%, see rank | 12.29% | 12.96% |
45 to 54 years | 12,689 | 15.07%, see rank | 14.81% | 14.09% |
55 to 64 years | 11,079 | 13.16%, see rank | 13.05% | 12.29% |
65 to 74 years | 6,628 | 7.87%, see rank | 7.68% | 7.64% |
75 to 84 | 3,548 | 4.21%, see rank | 4.57% | 4.25% |
85 years and over | 1,550 | 1.84%, see rank | 2.14% | 1.85% |
US Census 2010 data
Total population: 83,686
Median Age (
see rank)
Jefferson County | 38.20 years old |
Wisconsin | 38.50 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Jefferson County | 37.40 years old |
Wisconsin | 37.30 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Jefferson County | 39.00 years old |
Wisconsin | 39.60 years old |
U.S. | 38.50 years old |
| Jefferson County | % of the Total Population | Wisconsin | U.S. |
Under 5 years | 5,235 | 6.26%, see rank | 6.30% | 6.54% |
5 to 9 years | 5,590 | 6.68%, see rank | 6.48% | 6.59% |
10 to 14 years | 5,537 | 6.62%, see rank | 6.61% | 6.70% |
15 to 19 years | 6,648 | 7.94%, see rank | 7.02% | 7.14% |
20 to 24 years | 5,436 | 6.50%, see rank | 6.80% | 6.99% |
25 to 34 years | 10,074 | 12.04%, see rank | 12.69% | 13.30% |
35 to 44 years | 11,056 | 13.21%, see rank | 12.76% | 13.30% |
45 to 54 years | 12,747 | 15.23%, see rank | 15.36% | 14.58% |
55 to 64 years | 10,321 | 12.33%, see rank | 12.31% | 11.82% |
65 to 74 years | 6,103 | 7.29%, see rank | 7.04% | 7.03% |
75 to 84 | 3,441 | 4.11%, see rank | 4.54% | 4.23% |
85 years and over | 1,498 | 1.79%, see rank | 2.08% | 1.78% |
ACS 2008-2012 data
Total population: 83,751
Median Age (
see rank)
Jefferson County | 38.10 years old |
Wisconsin | 38.50 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Jefferson County | 37.60 years old |
Wisconsin | 37.40 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Jefferson County | 38.60 years old |
Wisconsin | 39.60 years old |
U.S. | 38.50 years old |
| Jefferson County | % of the Total Population | Wisconsin | U.S. |
Under 5 years | 5,138 | 6.13%, see rank | 6.25% | 6.51% |
5 to 9 years | 5,652 | 6.75%, see rank | 6.45% | 6.57% |
10 to 14 years | 5,584 | 6.67%, see rank | 6.62% | 6.68% |
15 to 19 years | 6,602 | 7.88%, see rank | 7.03% | 7.09% |
20 to 24 years | 5,413 | 6.46%, see rank | 6.83% | 7.04% |
25 to 34 years | 10,243 | 12.23%, see rank | 12.66% | 13.32% |
35 to 44 years | 11,060 | 13.21%, see rank | 12.79% | 13.34% |
45 to 54 years | 12,579 | 15.02%, see rank | 15.24% | 14.44% |
55 to 64 years | 10,381 | 12.40%, see rank | 12.35% | 11.84% |
65 to 74 years | 6,141 | 7.33%, see rank | 7.12% | 7.12% |
75 to 84 | 3,320 | 3.96%, see rank | 4.61% | 4.25% |
85 years and over | 1,638 | 1.96%, see rank | 2.05% | 1.78% |
ACS 2006-2010 data
Total population: 82,778
Median Age (
see rank)
Jefferson County | 37.90 years old |
Wisconsin | 38.10 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Jefferson County | 37.00 years old |
Wisconsin | 37.00 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Jefferson County | 38.80 years old |
Wisconsin | 39.20 years old |
U.S. | 38.10 years old |
| Jefferson County | % of the Total Population | Wisconsin | U.S. |
Under 5 years | 5,279 | 6.38%, see rank | 6.29% | 6.62% |
5 to 9 years | 5,683 | 6.87%, see rank | 6.45% | 6.62% |
10 to 14 years | 5,369 | 6.49%, see rank | 6.77% | 6.79% |
15 to 19 years | 6,544 | 7.91%, see rank | 7.21% | 7.28% |
20 to 24 years | 5,482 | 6.62%, see rank | 6.95% | 6.98% |
25 to 34 years | 10,159 | 12.27%, see rank | 12.42% | 13.22% |
35 to 44 years | 11,512 | 13.91%, see rank | 13.54% | 13.89% |
45 to 54 years | 12,434 | 15.02%, see rank | 15.40% | 14.57% |
55 to 64 years | 9,621 | 11.62%, see rank | 11.58% | 11.28% |
65 to 74 years | 5,748 | 6.94%, see rank | 6.74% | 6.74% |
75 to 84 | 3,386 | 4.09%, see rank | 4.66% | 4.30% |
85 years and over | 1,561 | 1.89%, see rank | 1.99% | 1.70% |
ACS 2005-2009 data
Total population: 79,868
Median Age (
see rank)
Jefferson County | 38.00 years old |
Wisconsin | 37.80 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Jefferson County | 36.90 years old |
Wisconsin | 36.70 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Jefferson County | 39.00 years old |
Wisconsin | 39.00 years old |
U.S. | 37.90 years old |
| Jefferson County | % of the Total Population | Wisconsin | U.S. |
Under 5 years | 5,169 | 6.47%, see rank | 6.37% | 6.92% |
5 to 9 years | 5,281 | 6.61%, see rank | 6.28% | 6.59% |
10 to 14 years | 4,901 | 6.14%, see rank | 6.64% | 6.83% |
15 to 19 years | 6,163 | 7.72%, see rank | 7.31% | 7.15% |
20 to 24 years | 5,452 | 6.83%, see rank | 7.44% | 7.02% |
25 to 34 years | 9,960 | 12.47%, see rank | 12.28% | 13.42% |
35 to 44 years | 11,716 | 14.67%, see rank | 14.03% | 14.18% |
45 to 54 years | 12,045 | 15.08%, see rank | 15.37% | 14.48% |
55 to 64 years | 8,991 | 11.26%, see rank | 11.09% | 10.81% |
65 to 74 years | 5,317 | 6.66%, see rank | 6.60% | 6.50% |
75 to 84 | 3,366 | 4.21%, see rank | 4.65% | 4.40% |
85 years and over | 1,507 | 1.89%, see rank | 1.94% | 1.71% |
US Census 2000 data
Total population: 74,021
Median Age (
see rank)
Jefferson County | 36.60 years old |
Wisconsin | 36.00 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Jefferson County | 35.70 years old |
Wisconsin | 35.00 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Jefferson County | 37.50 years old |
Wisconsin | 37.10 years old |
U.S. | 36.50 years old |
| Jefferson County | % of the Total Population | Wisconsin | U.S. |
Under 5 years | 4,695 | 6.34%, see rank | 6.38% | 6.81% |
5 to 9 years | 5,022 | 6.78%, see rank | 7.08% | 7.30% |
10 to 14 years | 5,553 | 7.50%, see rank | 7.51% | 7.29% |
15 to 19 years | 5,414 | 7.31%, see rank | 7.59% | 7.18% |
20 to 24 years | 4,278 | 5.78%, see rank | 6.66% | 6.74% |
25 to 34 years | 10,042 | 13.57%, see rank | 13.17% | 14.18% |
35 to 44 years | 12,457 | 16.83%, see rank | 16.32% | 16.04% |
45 to 54 years | 10,429 | 14.09%, see rank | 13.65% | 13.39% |
55 to 64 years | 6,772 | 9.15%, see rank | 8.53% | 8.63% |
65 to 74 years | 4,752 | 6.42%, see rank | 6.62% | 6.54% |
75 to 84 | 3,366 | 4.55%, see rank | 4.69% | 4.39% |
85 years and over | 1,241 | 1.68%, see rank | 1.78% | 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.