List of U.S. states and territories by median age

This is a list of U.S. states, the District of Columbia and territories by median age in 2018. Median age is the age that divides a population into two numerically equal groups - that is, half the people are younger than this age and half are older. It is a single index that summarizes the age distribution of a population.[note 1]

Rank	State, federal district, or territory	Median age in years (Total Population)[6]
1	Maine	44.9
2	New Hampshire	43.0
3	Vermont	42.8
4	West Virginia	42.7
5	Florida	42.2
6	Puerto Rico[7]	41.5
7	U.S. Virgin Islands[7]	41.0
8	Connecticut	41.0
9	Pennsylvania	40.8
10	Delaware	40.7
11	Rhode Island	40.1
12	New Jersey	40.0
13	Montana	39.9
14	Michigan	39.8
15	South Carolina	39.6
15	Wisconsin	39.6
17	Massachusetts	39.4
17	Ohio	39.4
17	Oregon	39.4
20	Alabama	39.2
20	Hawaii	39.2
22	New York	39.0
23	Kentucky	38.9
23	North Carolina	38.9
25	Maryland	38.8
25	Tennessee	38.8
27	Missouri	38.7
28	Virginia	38.4
29	Arkansas	38.3
29	Illinois	38.3
31	Iowa	38.2
—	United States	38.2
32	Minnesota	38.1
32	Nevada	38.1
32	New Mexico	38.1
35	Wyoming	38.0
36	Arizona	37.9
36	Indiana	37.9
38	Mississippi	37.7
38	Washington	37.7
40	Louisiana	37.2
41	South Dakota	37.1
42	Colorado	36.9
42	Georgia	36.9
42	Kansas	36.9
45	California	36.8
46	Oklahoma	36.7
47	Idaho	36.6
47	Nebraska	36.6
49	North Dakota	35.2
50	Texas	34.8
51	Alaska	34.6
52	District of Columbia	34.0
53	Northern Mariana Islands[7]	33.6
54	Utah	31.0
55	Guam[7]	29.0
56	American Samoa[7]	25.5