Mason City, IA Historical Age Data
ACS 2010-2014 data
Total population: 27,775
Median Age (
see rank)
| Mason City, IA | 41.90 years old |
| Iowa | 38.00 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Mason City, IA | 40.10 years old |
| Iowa | 36.70 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Mason City, IA | 43.50 years old |
| Iowa | 39.40 years old |
| U.S. | 38.80 years old |
| | Mason City, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 1,460 | 5.26%, see rank | 6.39% | 6.36% |
| 5 to 9 years | 1,468 | 5.29%, see rank | 6.62% | 6.51% |
| 10 to 14 years | 1,867 | 6.72%, see rank | 6.58% | 6.59% |
| 15 to 19 years | 1,974 | 7.11%, see rank | 6.96% | 6.85% |
| 20 to 24 years | 1,944 | 7.00%, see rank | 7.21% | 7.13% |
| 25 to 34 years | 3,092 | 11.13%, see rank | 12.65% | 13.47% |
| 35 to 44 years | 3,313 | 11.93%, see rank | 11.80% | 12.96% |
| 45 to 54 years | 4,030 | 14.51%, see rank | 13.73% | 14.09% |
| 55 to 64 years | 3,662 | 13.18%, see rank | 12.80% | 12.29% |
| 65 to 74 years | 2,223 | 8.00%, see rank | 7.81% | 7.64% |
| 75 to 84 | 1,753 | 6.31%, see rank | 4.98% | 4.25% |
| 85 years and over | 989 | 3.56%, see rank | 2.48% | 1.85% |
US Census 2010 data
Total population: 28,079
Median Age (
see rank)
| Mason City, IA | 40.90 years old |
| Iowa | 38.10 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Mason City, IA | 38.40 years old |
| Iowa | 36.60 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Mason City, IA | 43.50 years old |
| Iowa | 39.50 years old |
| U.S. | 38.50 years old |
| | Mason City, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 1,744 | 6.21%, see rank | 6.63% | 6.54% |
| 5 to 9 years | 1,666 | 5.93%, see rank | 6.59% | 6.59% |
| 10 to 14 years | 1,709 | 6.09%, see rank | 6.59% | 6.70% |
| 15 to 19 years | 2,003 | 7.13%, see rank | 7.12% | 7.14% |
| 20 to 24 years | 1,756 | 6.25%, see rank | 7.00% | 6.99% |
| 25 to 34 years | 3,343 | 11.91%, see rank | 12.56% | 13.30% |
| 35 to 44 years | 3,155 | 11.24%, see rank | 11.97% | 13.30% |
| 45 to 54 years | 4,192 | 14.93%, see rank | 14.43% | 14.58% |
| 55 to 64 years | 3,717 | 13.24%, see rank | 12.24% | 11.82% |
| 65 to 74 years | 2,160 | 7.69%, see rank | 7.37% | 7.03% |
| 75 to 84 | 1,784 | 6.35%, see rank | 5.04% | 4.23% |
| 85 years and over | 850 | 3.03%, see rank | 2.45% | 1.78% |
ACS 2008-2012 data
Total population: 28,012
Median Age (
see rank)
| Mason City, IA | 41.10 years old |
| Iowa | 38.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Mason City, IA | 39.40 years old |
| Iowa | 36.60 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Mason City, IA | 42.70 years old |
| Iowa | 39.40 years old |
| U.S. | 38.50 years old |
| | Mason City, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 1,680 | 6.00%, see rank | 6.53% | 6.51% |
| 5 to 9 years | 1,362 | 4.86%, see rank | 6.58% | 6.57% |
| 10 to 14 years | 1,980 | 7.07%, see rank | 6.60% | 6.68% |
| 15 to 19 years | 2,007 | 7.16%, see rank | 7.14% | 7.09% |
| 20 to 24 years | 1,749 | 6.24%, see rank | 7.08% | 7.04% |
| 25 to 34 years | 3,295 | 11.76%, see rank | 12.55% | 13.32% |
| 35 to 44 years | 3,454 | 12.33%, see rank | 12.02% | 13.34% |
| 45 to 54 years | 4,082 | 14.57%, see rank | 14.28% | 14.44% |
| 55 to 64 years | 3,655 | 13.05%, see rank | 12.27% | 11.84% |
| 65 to 74 years | 2,100 | 7.50%, see rank | 7.45% | 7.12% |
| 75 to 84 | 1,739 | 6.21%, see rank | 5.08% | 4.25% |
| 85 years and over | 909 | 3.25%, see rank | 2.42% | 1.78% |
ACS 2006-2010 data
Total population: 28,125
Median Age (
see rank)
| Mason City, IA | 39.90 years old |
| Iowa | 38.00 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Mason City, IA | 38.30 years old |
| Iowa | 36.60 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Mason City, IA | 43.00 years old |
| Iowa | 39.30 years old |
| U.S. | 38.10 years old |
| | Mason City, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 1,802 | 6.41%, see rank | 6.56% | 6.62% |
| 5 to 9 years | 1,534 | 5.45%, see rank | 6.57% | 6.62% |
| 10 to 14 years | 1,755 | 6.24%, see rank | 6.64% | 6.79% |
| 15 to 19 years | 1,985 | 7.06%, see rank | 7.28% | 7.28% |
| 20 to 24 years | 1,797 | 6.39%, see rank | 7.14% | 6.98% |
| 25 to 34 years | 3,332 | 11.85%, see rank | 12.25% | 13.22% |
| 35 to 44 years | 3,438 | 12.22%, see rank | 12.56% | 13.89% |
| 45 to 54 years | 4,243 | 15.09%, see rank | 14.61% | 14.57% |
| 55 to 64 years | 3,315 | 11.79%, see rank | 11.58% | 11.28% |
| 65 to 74 years | 2,170 | 7.72%, see rank | 7.21% | 6.74% |
| 75 to 84 | 2,055 | 7.31%, see rank | 5.24% | 4.30% |
| 85 years and over | 699 | 2.49%, see rank | 2.36% | 1.70% |
ACS 2005-2009 data
Total population: 27,489
Median Age (
see rank)
| Mason City, IA | 39.80 years old |
| Iowa | 37.90 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Mason City, IA | 38.10 years old |
| Iowa | 36.50 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Mason City, IA | 42.50 years old |
| Iowa | 39.30 years old |
| U.S. | 37.90 years old |
| | Mason City, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 1,618 | 5.89%, see rank | 6.61% | 6.92% |
| 5 to 9 years | 1,438 | 5.23%, see rank | 6.38% | 6.59% |
| 10 to 14 years | 1,844 | 6.71%, see rank | 6.59% | 6.83% |
| 15 to 19 years | 2,006 | 7.30%, see rank | 7.37% | 7.15% |
| 20 to 24 years | 1,914 | 6.96%, see rank | 7.65% | 7.02% |
| 25 to 34 years | 3,369 | 12.26%, see rank | 11.90% | 13.42% |
| 35 to 44 years | 3,303 | 12.02%, see rank | 12.95% | 14.18% |
| 45 to 54 years | 4,229 | 15.38%, see rank | 14.71% | 14.48% |
| 55 to 64 years | 3,025 | 11.00%, see rank | 11.11% | 10.81% |
| 65 to 74 years | 2,116 | 7.70%, see rank | 7.05% | 6.50% |
| 75 to 84 | 1,844 | 6.71%, see rank | 5.30% | 4.40% |
| 85 years and over | 783 | 2.85%, see rank | 2.38% | 1.71% |
US Census 2000 data
Total population: 29,172
Median Age (
see rank)
| Mason City, IA | 38.20 years old |
| Iowa | 36.60 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Mason City, IA | 35.80 years old |
| Iowa | 35.20 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Mason City, IA | 40.30 years old |
| Iowa | 38.00 years old |
| U.S. | 36.50 years old |
| | Mason City, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 1,815 | 6.22%, see rank | 6.44% | 6.81% |
| 5 to 9 years | 1,929 | 6.61%, see rank | 6.92% | 7.30% |
| 10 to 14 years | 1,931 | 6.62%, see rank | 7.19% | 7.29% |
| 15 to 19 years | 2,251 | 7.72%, see rank | 7.74% | 7.18% |
| 20 to 24 years | 1,919 | 6.58%, see rank | 6.96% | 6.74% |
| 25 to 34 years | 3,480 | 11.93%, see rank | 12.41% | 14.18% |
| 35 to 44 years | 4,314 | 14.79%, see rank | 15.21% | 16.04% |
| 45 to 54 years | 3,843 | 13.17%, see rank | 13.42% | 13.39% |
| 55 to 64 years | 2,479 | 8.50%, see rank | 8.80% | 8.63% |
| 65 to 74 years | 2,460 | 8.43%, see rank | 7.24% | 6.54% |
| 75 to 84 | 1,920 | 6.58%, see rank | 5.44% | 4.39% |
| 85 years and over | 831 | 2.85%, see rank | 2.23% | 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.
