Hi, I am Alexandra Barker.
Do you how many adults live in your states?
Are there more children in your county since 2010?
You can easily find the answers to these questions
in our interactive data visualization showing 2020 Census data for the adult
and under-age 18 population.
In this Data Gem,
I asked my colleague Megan Rabe to show us how to use this map-based data visualization
to identify trends for states and counties.
So, let's learn more about this resource.
Hi, I’m Megan Rabe.
I’m a demographer and visualization developer in the Population Division at the Census Bureau.
I’m excited to show you where you can find
information on the adult and under age 18 populations for your state and county
based on the 2020 Census Redistricting Data.
You can find the U.S. Adult and Under-Age-18 visualization on census.gov
in the Infographic & Visualization library
or by clicking on the link above or in the description of this video.
First, I’m going to click on the “full screen” button on the bottom of the page
to make the data viz a bit bigger.
The visualization includes answers for three questions:
What percentage was aged 18 and over in 2020?
How has the population aged 18 and over changed since 2010?
And what are facts for my state or county?
The currently selected question includes a map
and a rank chart
showing the percentage of the population age 18 and over in 2020.
Hover over the percentage for the United States
to view more information for the nation.
To find information for your county,
use the filter and arrow button on the right.
Let’s take a closer look at Illinois, for example.
Here we can see that Kendall County had the smallest percentage of adults in Illinois
at 71.2%.
We can also highlight a county,
change the state,
or return to the national view.
Clicking on the second question will change the data shown on the rank chart and map.
Now, we’re viewing percent change, which represents
the degree to which the adult population increased or decreased from 2010.
Let’s take a closer look at West Virginia.
Hovering over the state, we can see that
West Virginia had a 2.2% decrease in the adult population,
which represents 32,644 people.
If we go to the county page, we can highlight the counties that had the largest percent decreases.
If you would like to go back to viewing the 2020 statistics for counties in this state,
all you have to do is click on the first question to toggle
between the two statistics for that geography.
Clicking on the last question, “What are facts for my state or county”
will take you to the data table page.
Here, you can compare statistics for the Nation,
a state, and a county within that state, by using the filters at the top
and clicking the arrow.
The tables include information on
total population,
population 18 and over,
population under 18,
and ranking tables,
so that you can see how your county is ranked within the nation and the state.
If the arrow disappears, that means that the county you selected is not one of the
counties in the chosen state.
Try selecting a new county or state so that the arrow reappears. And you can change the table.
I hope you enjoy using this visualization to explore data on the adult and under-age-18 populations for your state and county.
Thank you, Megan.
It looks pretty easy to identify changes and trends
for the Adult and Under-Age 18 Population using this visualization.
And if you would like to learn more tips about how to access 2020 Census Redistricting data,
visit census.gov/academy and subscribe.
Thank you.