Migration is the largest component of population growth in Oregon. <br />Between 1990 and 2010, in-migration accounted for 68% of Oregon's <br />population growth. Over the same period, in-migration accounted for 75% <br />of population growth in Lane County, adding more than 51,000 residents <br />over the twenty-year period. <br />Aging population <br />Eugene's population is generally younger than population in Lane County <br />or Oregon. In 2011, Eugene's median age was 33.3 years, compared to the <br />County median of 39.0 years or the State average of 38.7 years. Figure 15 <br />shows the populations of Oregon, Lane County, and Eugene by age for <br />2011. Eugene has a greater proportion of its population aged 20-29 years <br />than the County or State averages. Eugene has comparatively fewer <br />residents between 50 and 69 years than the state. Eugene's age <br />distribution affects housing need, as described later in this section. <br />Figure 15. Population distribution by age, Oregon, Lane County, and <br />Eugene, 2011 <br />70 and older <br />60-69 <br />50-59 <br />40-49 <br />a~ <br />a~ <br />a 30-39 <br />20-29 <br />10-19 <br />Under 10 <br />Percent of Population <br />OEugene 0Lane County â– Oregon <br />Source: American Community Survey 2011 601001 <br />Table 12 shows population by age for Eugene in 2000 and 2011. Eugene <br />grew by 19,028 people between 2000 and 2011, which is a 14% increase. <br />The age breakdown shows that Eugene had an increase in population for <br />every age group over the age of 17. The fastest growing age groups were <br />Part 11 - Eugene Housing Needs Analysis ECONorthwest Page 57 <br />0% 5% 10% 15% 20% 25% <br />