Every ten years, the federal government conducts a “census,” where it counts every person living in the United States. The constitution mandates that all people
Population Under Age 18: The percentage of the population that is under the age of 18
Population Ages 18-24: The percentage of the population that is between the ages of 18 and 24
Population Ages 25 – 34: The percentage of the population that is between the ages of 25 and 34
Population Ages 35 – 44: The percentage of the population that is between the ages of 35 and 44
Population Ages 45 – 54: The percentage of the population that is between the ages of 45 and 54
Population Ages 55 – 64: The percentage of the population that is between the ages of 55 and 64
Population Ages 65 & Older: The percentage of the population that is ages 65 and older
American Community Survey (ACS), 5-year estimates, Table B01001
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
*Note: Each year of available data shown above is a 5-year estimate, or an average of data collected over a five year period. 5-year estimates are used to increase the reliability of the data at small geographies like neighborhoods and census tracts. The years shown on the NDSC map represent the final year of the five year average (e.g. “2010” represents 2006-2010 data, “2011” represents 2007-2011 data, and so on). For the most impactful comparison of data over time, the ACS recommends comparing non-overlapping years (e.g. 2010-14 with 2015-19).
Why are these variables important to measure?
Understanding the age of a community is critical to providing adequate infrastructure, resources and services. Those under 18, the common age of adulthood in the United States, represent the youth of a given community. Young people can require a wide variety of resources, like daycare facilities, elementary and high schools, and social spaces. Adults between the ages of 18 and 65 will likely need different services, like job opportunities, higher education, financial services, family housing, and so on. In order to properly understand the needs of a community, examining the age demographics is crucial to properly allocating resources.