• The nation had 1 million fewer kids under the age of 10 in 2020 than it did in 2010. Only Texas and Florida gained more than 100,000 children in the age group, the largest gains among states. 
   
• The 65 and older population grew the most between 2010 and 2020. The demographic increased 37.5%, from nearly 40.48 million to 55.66 million.
   
• Over the decade, Maricopa County, Arizona, had the most growth of any county, with 753,898 more people. Cook County, Illinois, had the largest decline with 90,693 fewer residents.

• Colorado had 44,055 more male than female residents in 2020, the largest difference between males to females of any state. New York, meanwhile, had 555,782 more female than male residents, the largest difference of its kind nationwide.

How have the demographics of your state and your county changed over the decades? Find out here.  
 

Who voted in 2020? And how? 

More than 60% of American voters cast a vote in the 2020 presidential election, the highest rate in three decades. In a year shaped by COVID-19, many states changed voting parameters to enable people to vote safely, including extended hours for in-person voting and expanded mail-in ballots. How did Americans take to these new measures? Here are the facts.

• Before 2020, 60% of voters cast their ballots in person on Election Day. Expanded poll and ballot access led to almost 70% of voters using nontraditional methods to cast ballots in 2020.

• Voting rates rose in the Northeast, Midwest, and West. Turnout was highest where the presidential election was close, such as Wisconsin and Pennsylvania. Minnesota had the highest turnout rate of all: 74%.  
   
• Southern voter turnout was consistent with 2016. Texas and West Virginia had turnout rates of 55%, the lowest in the nation.
   
• Young people have the nation’s lowest voting rate, but it grew in the 2018 midterm and 2020 presidential elections. Youth voter turnout rose 10 percentage points from 2016 to 2020.

Learn about the most popular voting methods by region — and Americans’ reasons for not voting — in this new article. But that’s not the end of the story: Scroll through this graphic to see the changes states made to voting after 2020.
 

Introducing the Weekly Fact Quiz  

Are you caught up on our newest data and articles? Prove it with the weekly USAFacts quiz! There will be a short quiz posted at USAFacts at the end of each week, so save this link and check back often for a new challenge.  

One last fact