The public health and economic toll the coronavirus pandemic caused are well documented. Perhaps less understood are the social impacts. According to a report from Pew Research Center, young adults in the United States were more likely to be living with at least one parent in July 2020 than at any time since the Great Depression.

The historic numbers of young adults either moving back home or choosing to remain there during the pandemic appears to have been a continuation of a broader trend. According to data from the U.S. Census Bureau, 34.4% of Americans between the ages of 18 and 34 lived with at least one parent, grandparent, or former guardian in 2019 -- compared to 31.5% in 2010.

The likelihood of young adults residing with their parents varies considerably from state to state.

Young adults are more likely to live with a parent or grandparent in Florida than in any other state in the South. There are more than 4.5 million Florida residents between the ages of 18 and 34, and 40.5% of them live with their parents.

One reason young people in the United States may live at home is to provide care for an older parent. In Florida, 20.9% of the population are 65 or older, the second largest share of any state and well above the 16.5% share of the U.S. population.

To determine the states where the most young adults live with their parents, 24/7 Wall St. reviewed data on family and household type from the Public Use Microdata Sample summary files of the U.S. Census Bureau's 2019 American Community Survey. States were ranked on the percentage of adults 18 to 34 years old who live with their biological parents, adoptive parents, steparents, foster parents, or grandparents in 2019. Supplemental data on the median age at first marriage of the 15 to 54 year-old cohort came from the Census Bureau's 2019 ACS. Data on regional price parity used to calculate cost of living came from the Bureau of Economic Analysis and is for 2019.

RankState18-34 year-olds living with parents (%)Median age at first marriage (years)March 2021 unemployment (%)
1New Jersey45.130.37.8
2Florida40.530.35.3
3California40.230.38.2
4Mississippi39.727.36.3
5Connecticut39.631.18.3
6Maryland39.530.26.0
7Rhode Island38.831.27.2
8New Mexico38.330.18.0
9New York37.730.78.5
10Hawaii37.429.68.6
11Georgia36.829.04.0
12Illinois36.229.97.1
13South Carolina36.029.24.8
14Louisiana35.729.26.6
15Texas35.628.47.2
16Alabama35.427.93.4
17Michigan35.029.55.2
18New Hampshire34.929.63.2
19Delaware34.330.56.6
20Arizona34.129.56.5
21Pennsylvania34.129.87.3
22Massachusetts32.930.76.6
23North Carolina32.928.94.6
24Virginia32.729.25.1
25West Virginia31.727.56.1
26Nevada31.429.27.6
27Tennessee31.327.85.1
28Alaska31.028.77.1
29Ohio30.429.14.9
30Arkansas30.426.44.8
31Indiana29.928.54.7
32Kentucky29.627.75.0
33Utah29.525.82.9
34Missouri28.828.14.4
35Maine27.829.25.4
36Oklahoma27.326.84.1
37Oregon26.729.66.5
38Wisconsin26.428.84.8
39Minnesota26.329.04.5
40Washington26.128.86.1
41Idaho26.026.74.0
42Vermont25.930.03.3
43Montana25.228.34.4
44Kansas25.227.43.8
45Colorado24.628.96.5
46South Dakota21.526.83.3
47Nebraska21.427.32.8
48Iowa21.127.84.4
49Wyoming20.326.05.9
50North Dakota14.327.44.8