Marion County Historical Age Data
ACS 2010-2014 data
Total population: 320,448
Median Age (
see rank)
| Marion County | 35.60 years old |
| Oregon | 38.90 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Marion County | 34.40 years old |
| Oregon | 37.90 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Marion County | 37.00 years old |
| Oregon | 40.00 years old |
| U.S. | 38.80 years old |
| | Marion County | % of the Total Population | Oregon | U.S. |
| Under 5 years | 22,855 | 7.13%, see rank | 5.94% | 6.36% |
| 5 to 9 years | 24,040 | 7.50%, see rank | 6.15% | 6.51% |
| 10 to 14 years | 22,249 | 6.94%, see rank | 6.18% | 6.59% |
| 15 to 19 years | 22,851 | 7.13%, see rank | 6.35% | 6.85% |
| 20 to 24 years | 22,043 | 6.88%, see rank | 6.73% | 7.13% |
| 25 to 34 years | 43,854 | 13.69%, see rank | 13.65% | 13.47% |
| 35 to 44 years | 40,081 | 12.51%, see rank | 13.02% | 12.96% |
| 45 to 54 years | 40,286 | 12.57%, see rank | 13.44% | 14.09% |
| 55 to 64 years | 38,610 | 12.05%, see rank | 13.61% | 12.29% |
| 65 to 74 years | 24,111 | 7.52%, see rank | 8.49% | 7.64% |
| 75 to 84 | 13,078 | 4.08%, see rank | 4.36% | 4.25% |
| 85 years and over | 6,390 | 1.99%, see rank | 2.08% | 1.85% |
US Census 2010 data
Total population: 315,335
Median Age (
see rank)
| Marion County | 35.10 years old |
| Oregon | 38.40 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Marion County | 33.80 years old |
| Oregon | 37.30 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Marion County | 36.50 years old |
| Oregon | 39.50 years old |
| U.S. | 38.50 years old |
| | Marion County | % of the Total Population | Oregon | U.S. |
| Under 5 years | 23,580 | 7.48%, see rank | 6.20% | 6.54% |
| 5 to 9 years | 22,951 | 7.28%, see rank | 6.19% | 6.59% |
| 10 to 14 years | 22,865 | 7.25%, see rank | 6.33% | 6.70% |
| 15 to 19 years | 23,471 | 7.44%, see rank | 6.65% | 7.14% |
| 20 to 24 years | 21,350 | 6.77%, see rank | 6.61% | 6.99% |
| 25 to 34 years | 42,994 | 13.63%, see rank | 13.68% | 13.30% |
| 35 to 44 years | 39,503 | 12.53%, see rank | 13.04% | 13.30% |
| 45 to 54 years | 41,151 | 13.05%, see rank | 14.07% | 14.58% |
| 55 to 64 years | 36,921 | 11.71%, see rank | 13.30% | 11.82% |
| 65 to 74 years | 21,380 | 6.78%, see rank | 7.57% | 7.03% |
| 75 to 84 | 12,949 | 4.11%, see rank | 4.32% | 4.23% |
| 85 years and over | 6,220 | 1.97%, see rank | 2.03% | 1.78% |
ACS 2008-2012 data
Total population: 315,391
Median Age (
see rank)
| Marion County | 35.10 years old |
| Oregon | 38.40 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Marion County | 33.90 years old |
| Oregon | 37.30 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Marion County | 36.60 years old |
| Oregon | 39.50 years old |
| U.S. | 38.50 years old |
| | Marion County | % of the Total Population | Oregon | U.S. |
| Under 5 years | 23,378 | 7.41%, see rank | 6.12% | 6.51% |
| 5 to 9 years | 23,050 | 7.31%, see rank | 6.23% | 6.57% |
| 10 to 14 years | 22,737 | 7.21%, see rank | 6.28% | 6.68% |
| 15 to 19 years | 23,154 | 7.34%, see rank | 6.59% | 7.09% |
| 20 to 24 years | 21,585 | 6.84%, see rank | 6.70% | 7.04% |
| 25 to 34 years | 43,306 | 13.73%, see rank | 13.67% | 13.32% |
| 35 to 44 years | 39,525 | 12.53%, see rank | 13.07% | 13.34% |
| 45 to 54 years | 40,557 | 12.86%, see rank | 13.98% | 14.44% |
| 55 to 64 years | 37,052 | 11.75%, see rank | 13.28% | 11.84% |
| 65 to 74 years | 21,791 | 6.91%, see rank | 7.70% | 7.12% |
| 75 to 84 | 13,020 | 4.13%, see rank | 4.37% | 4.25% |
| 85 years and over | 6,236 | 1.98%, see rank | 2.02% | 1.78% |
ACS 2006-2010 data
Total population: 309,894
Median Age (
see rank)
| Marion County | 35.00 years old |
| Oregon | 38.10 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Marion County | 33.60 years old |
| Oregon | 37.00 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Marion County | 36.50 years old |
| Oregon | 39.10 years old |
| U.S. | 38.10 years old |
| | Marion County | % of the Total Population | Oregon | U.S. |
| Under 5 years | 23,069 | 7.44%, see rank | 6.23% | 6.62% |
| 5 to 9 years | 22,480 | 7.25%, see rank | 6.28% | 6.62% |
| 10 to 14 years | 22,567 | 7.28%, see rank | 6.38% | 6.79% |
| 15 to 19 years | 23,239 | 7.50%, see rank | 6.82% | 7.28% |
| 20 to 24 years | 21,305 | 6.87%, see rank | 6.70% | 6.98% |
| 25 to 34 years | 42,341 | 13.66%, see rank | 13.53% | 13.22% |
| 35 to 44 years | 39,612 | 12.78%, see rank | 13.38% | 13.89% |
| 45 to 54 years | 41,091 | 13.26%, see rank | 14.52% | 14.57% |
| 55 to 64 years | 34,929 | 11.27%, see rank | 12.68% | 11.28% |
| 65 to 74 years | 20,097 | 6.49%, see rank | 7.10% | 6.74% |
| 75 to 84 | 13,080 | 4.22%, see rank | 4.43% | 4.30% |
| 85 years and over | 6,084 | 1.96%, see rank | 1.97% | 1.70% |
ACS 2005-2009 data
Total population: 309,829
Median Age (
see rank)
| Marion County | 34.60 years old |
| Oregon | 37.70 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Marion County | 33.30 years old |
| Oregon | 36.70 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Marion County | 36.10 years old |
| Oregon | 38.80 years old |
| U.S. | 37.90 years old |
| | Marion County | % of the Total Population | Oregon | U.S. |
| Under 5 years | 24,250 | 7.83%, see rank | 6.41% | 6.92% |
| 5 to 9 years | 22,092 | 7.13%, see rank | 6.31% | 6.59% |
| 10 to 14 years | 22,674 | 7.32%, see rank | 6.40% | 6.83% |
| 15 to 19 years | 22,014 | 7.11%, see rank | 6.74% | 7.15% |
| 20 to 24 years | 21,258 | 6.86%, see rank | 6.90% | 7.02% |
| 25 to 34 years | 44,235 | 14.28%, see rank | 13.51% | 13.42% |
| 35 to 44 years | 40,561 | 13.09%, see rank | 13.58% | 14.18% |
| 45 to 54 years | 41,517 | 13.40%, see rank | 14.80% | 14.48% |
| 55 to 64 years | 33,611 | 10.85%, see rank | 12.19% | 10.81% |
| 65 to 74 years | 18,970 | 6.12%, see rank | 6.78% | 6.50% |
| 75 to 84 | 12,910 | 4.17%, see rank | 4.43% | 4.40% |
| 85 years and over | 5,737 | 1.85%, see rank | 1.96% | 1.71% |
US Census 2000 data
Total population: 284,834
Median Age (
see rank)
| Marion County | 33.70 years old |
| Oregon | 36.30 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Marion County | 32.20 years old |
| Oregon | 35.10 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Marion County | 35.30 years old |
| Oregon | 37.50 years old |
| U.S. | 36.50 years old |
| | Marion County | % of the Total Population | Oregon | U.S. |
| Under 5 years | 21,874 | 7.68%, see rank | 6.52% | 6.81% |
| 5 to 9 years | 21,674 | 7.61%, see rank | 6.85% | 7.30% |
| 10 to 14 years | 21,184 | 7.44%, see rank | 7.08% | 7.29% |
| 15 to 19 years | 22,050 | 7.74%, see rank | 7.14% | 7.18% |
| 20 to 24 years | 20,525 | 7.21%, see rank | 6.73% | 6.74% |
| 25 to 34 years | 40,217 | 14.12%, see rank | 13.76% | 14.18% |
| 35 to 44 years | 41,597 | 14.60%, see rank | 15.39% | 16.04% |
| 45 to 54 years | 37,564 | 13.19%, see rank | 14.82% | 13.39% |
| 55 to 64 years | 22,943 | 8.05%, see rank | 8.90% | 8.63% |
| 65 to 74 years | 17,148 | 6.02%, see rank | 6.41% | 6.54% |
| 75 to 84 | 13,190 | 4.63%, see rank | 4.72% | 4.39% |
| 85 years and over | 4,868 | 1.71%, see rank | 1.68% | 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.
