Waterloo, IA Historical Age Data
ACS 2010-2014 data
Total population: 68,392
Median Age (
see rank)
| Waterloo, IA | 35.80 years old |
| Iowa | 38.00 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Waterloo, IA | 34.70 years old |
| Iowa | 36.70 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Waterloo, IA | 37.60 years old |
| Iowa | 39.40 years old |
| U.S. | 38.80 years old |
| | Waterloo, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 4,718 | 6.90%, see rank | 6.39% | 6.36% |
| 5 to 9 years | 4,835 | 7.07%, see rank | 6.62% | 6.51% |
| 10 to 14 years | 4,294 | 6.28%, see rank | 6.58% | 6.59% |
| 15 to 19 years | 3,891 | 5.69%, see rank | 6.96% | 6.85% |
| 20 to 24 years | 5,742 | 8.40%, see rank | 7.21% | 7.13% |
| 25 to 34 years | 9,899 | 14.47%, see rank | 12.65% | 13.47% |
| 35 to 44 years | 7,727 | 11.30%, see rank | 11.80% | 12.96% |
| 45 to 54 years | 8,369 | 12.24%, see rank | 13.73% | 14.09% |
| 55 to 64 years | 8,767 | 12.82%, see rank | 12.80% | 12.29% |
| 65 to 74 years | 5,094 | 7.45%, see rank | 7.81% | 7.64% |
| 75 to 84 | 3,377 | 4.94%, see rank | 4.98% | 4.25% |
| 85 years and over | 1,679 | 2.45%, see rank | 2.48% | 1.85% |
US Census 2010 data
Total population: 68,406
Median Age (
see rank)
| Waterloo, IA | 35.90 years old |
| Iowa | 38.10 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Waterloo, IA | 34.60 years old |
| Iowa | 36.60 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Waterloo, IA | 37.30 years old |
| Iowa | 39.50 years old |
| U.S. | 38.50 years old |
| | Waterloo, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 5,108 | 7.47%, see rank | 6.63% | 6.54% |
| 5 to 9 years | 4,431 | 6.48%, see rank | 6.59% | 6.59% |
| 10 to 14 years | 4,156 | 6.08%, see rank | 6.59% | 6.70% |
| 15 to 19 years | 4,377 | 6.40%, see rank | 7.12% | 7.14% |
| 20 to 24 years | 5,201 | 7.60%, see rank | 7.00% | 6.99% |
| 25 to 34 years | 10,204 | 14.92%, see rank | 12.56% | 13.30% |
| 35 to 44 years | 7,893 | 11.54%, see rank | 11.97% | 13.30% |
| 45 to 54 years | 9,054 | 13.24%, see rank | 14.43% | 14.58% |
| 55 to 64 years | 8,398 | 12.28%, see rank | 12.24% | 11.82% |
| 65 to 74 years | 4,698 | 6.87%, see rank | 7.37% | 7.03% |
| 75 to 84 | 3,283 | 4.80%, see rank | 5.04% | 4.23% |
| 85 years and over | 1,603 | 2.34%, see rank | 2.45% | 1.78% |
ACS 2008-2012 data
Total population: 68,248
Median Age (
see rank)
| Waterloo, IA | 35.70 years old |
| Iowa | 38.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Waterloo, IA | 34.40 years old |
| Iowa | 36.60 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Waterloo, IA | 38.00 years old |
| Iowa | 39.40 years old |
| U.S. | 38.50 years old |
| | Waterloo, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 5,060 | 7.41%, see rank | 6.53% | 6.51% |
| 5 to 9 years | 4,640 | 6.80%, see rank | 6.58% | 6.57% |
| 10 to 14 years | 4,184 | 6.13%, see rank | 6.60% | 6.68% |
| 15 to 19 years | 4,059 | 5.95%, see rank | 7.14% | 7.09% |
| 20 to 24 years | 5,591 | 8.19%, see rank | 7.08% | 7.04% |
| 25 to 34 years | 9,926 | 14.54%, see rank | 12.55% | 13.32% |
| 35 to 44 years | 7,646 | 11.20%, see rank | 12.02% | 13.34% |
| 45 to 54 years | 8,895 | 13.03%, see rank | 14.28% | 14.44% |
| 55 to 64 years | 8,413 | 12.33%, see rank | 12.27% | 11.84% |
| 65 to 74 years | 4,788 | 7.02%, see rank | 7.45% | 7.12% |
| 75 to 84 | 3,502 | 5.13%, see rank | 5.08% | 4.25% |
| 85 years and over | 1,544 | 2.26%, see rank | 2.42% | 1.78% |
ACS 2006-2010 data
Total population: 67,893
Median Age (
see rank)
| Waterloo, IA | 36.30 years old |
| Iowa | 38.00 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Waterloo, IA | 35.50 years old |
| Iowa | 36.60 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Waterloo, IA | 37.70 years old |
| Iowa | 39.30 years old |
| U.S. | 38.10 years old |
| | Waterloo, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 5,191 | 7.65%, see rank | 6.56% | 6.62% |
| 5 to 9 years | 4,438 | 6.54%, see rank | 6.57% | 6.62% |
| 10 to 14 years | 4,137 | 6.09%, see rank | 6.64% | 6.79% |
| 15 to 19 years | 4,074 | 6.00%, see rank | 7.28% | 7.28% |
| 20 to 24 years | 5,654 | 8.33%, see rank | 7.14% | 6.98% |
| 25 to 34 years | 9,399 | 13.84%, see rank | 12.25% | 13.22% |
| 35 to 44 years | 7,712 | 11.36%, see rank | 12.56% | 13.89% |
| 45 to 54 years | 9,291 | 13.68%, see rank | 14.61% | 14.57% |
| 55 to 64 years | 7,979 | 11.75%, see rank | 11.58% | 11.28% |
| 65 to 74 years | 4,867 | 7.17%, see rank | 7.21% | 6.74% |
| 75 to 84 | 3,482 | 5.13%, see rank | 5.24% | 4.30% |
| 85 years and over | 1,669 | 2.46%, see rank | 2.36% | 1.70% |
ACS 2005-2009 data
Total population: 66,351
Median Age (
see rank)
| Waterloo, IA | 36.20 years old |
| Iowa | 37.90 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Waterloo, IA | 35.20 years old |
| Iowa | 36.50 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Waterloo, IA | 37.30 years old |
| Iowa | 39.30 years old |
| U.S. | 37.90 years old |
| | Waterloo, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 5,261 | 7.93%, see rank | 6.61% | 6.92% |
| 5 to 9 years | 4,410 | 6.65%, see rank | 6.38% | 6.59% |
| 10 to 14 years | 4,031 | 6.08%, see rank | 6.59% | 6.83% |
| 15 to 19 years | 3,989 | 6.01%, see rank | 7.37% | 7.15% |
| 20 to 24 years | 6,931 | 10.45%, see rank | 7.65% | 7.02% |
| 25 to 34 years | 7,693 | 11.59%, see rank | 11.90% | 13.42% |
| 35 to 44 years | 7,572 | 11.41%, see rank | 12.95% | 14.18% |
| 45 to 54 years | 9,187 | 13.85%, see rank | 14.71% | 14.48% |
| 55 to 64 years | 7,325 | 11.04%, see rank | 11.11% | 10.81% |
| 65 to 74 years | 4,665 | 7.03%, see rank | 7.05% | 6.50% |
| 75 to 84 | 3,606 | 5.43%, see rank | 5.30% | 4.40% |
| 85 years and over | 1,681 | 2.53%, see rank | 2.38% | 1.71% |
US Census 2000 data
Total population: 68,747
Median Age (
see rank)
| Waterloo, IA | 35.90 years old |
| Iowa | 36.60 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Waterloo, IA | 33.90 years old |
| Iowa | 35.20 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Waterloo, IA | 37.70 years old |
| Iowa | 38.00 years old |
| U.S. | 36.50 years old |
| | Waterloo, IA | % of the Total Population | Iowa | U.S. |
| Under 5 years | 4,841 | 7.04%, see rank | 6.44% | 6.81% |
| 5 to 9 years | 4,735 | 6.89%, see rank | 6.92% | 7.30% |
| 10 to 14 years | 4,607 | 6.70%, see rank | 7.19% | 7.29% |
| 15 to 19 years | 4,751 | 6.91%, see rank | 7.74% | 7.18% |
| 20 to 24 years | 5,288 | 7.69%, see rank | 6.96% | 6.74% |
| 25 to 34 years | 9,380 | 13.64%, see rank | 12.41% | 14.18% |
| 35 to 44 years | 9,500 | 13.82%, see rank | 15.21% | 16.04% |
| 45 to 54 years | 9,351 | 13.60%, see rank | 13.42% | 13.39% |
| 55 to 64 years | 5,750 | 8.36%, see rank | 8.80% | 8.63% |
| 65 to 74 years | 5,017 | 7.30%, see rank | 7.24% | 6.54% |
| 75 to 84 | 3,953 | 5.75%, see rank | 5.44% | 4.39% |
| 85 years and over | 1,574 | 2.29%, 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.
