Share of the population by age and sex, five-year groups

Population of Wyoming, 2010–2025 · click to pick a year
Estimates up to 2019 are built on the 2010 Census, those from 2020 on the 2020 Census. A line that steps up or down between 2019 and 2020 reflects this re-basing, not a sudden change in population.

Year

-5 -1   2015  +1 +5

586,389 people lived in Wyoming on July 1, 2015: the 51st-largest population among the 50 states and the District of Columbia. The median age was 36.8 years (United States: 37.8); children under 15 (20.0%) clearly outnumber residents 65 and older (14.5%): a relatively young population. There were 104.5 men for every 100 women. Since 2010 the population has grown by 3.9%. Source: U.S. Census Bureau, Population Estimates Program, Vintage 2020 estimates (resident population on July 1; public domain). Median age, shares, dependency ratios and rankings are calculated by PopulationPyramid.net from these estimates; the Census Bureau does not endorse this site.

Key indicators, 2015
Population
586,389
Rank by population
51st of 51
Median age
36.8
Men per 100 women
104.5
Under 15
20.0%
15–64
65.4%
65 and over
14.5%
Child dependency
30.6
Old-age dependency
22.2
Change since 2010
+3.9%
Dependency ratios count children under 15 or adults 65 and over per 100 residents aged 15 to 64.
Show the population by age group, 2015
AgeMenWomenTotalShare
0-419,96118,55138,5126.6%
5-921,00020,15141,1517.0%
10-1419,48818,35237,8406.5%
15-1919,11717,71436,8316.3%
20-2422,18319,58741,7707.1%
25-2921,49119,43840,9297.0%
30-3421,67219,77441,4467.1%
35-3919,43017,85837,2886.4%
40-4417,54015,99433,5345.7%
45-4916,84915,76132,6105.6%
50-5419,24718,91438,1616.5%
55-5921,47621,00842,4847.2%
60-6419,63018,95438,5846.6%
65-6915,64214,94230,5845.2%
70-7410,13410,42420,5583.5%
75-796,7187,47614,1942.4%
80-844,2035,4319,6341.6%
85+3,9026,37710,2791.8%
How Wyoming compares with similar-sized states, 2015
RankStateResidentsRelative
45 Delaware 942,065
46 South Dakota 854,663
47 North Dakota 755,537
48 Alaska 738,430
49 District of Columbia 677,014
50 Vermont 625,810
51 Wyoming 586,389
Frequently asked questions about Wyoming's population
What is the population of Wyoming?
Wyoming had an estimated 586,389 residents on July 1, 2015, according to the U.S. Census Bureau, Population Estimates Program. That ranks 51st among the 51 states and the District of Columbia.
What is the median age in Wyoming?
The median age in Wyoming was 36.8 years in 2015, the 37th oldest of the 51 states and DC. That is 1.0 years younger than the national median of 37.8.
How many people in Wyoming are 65 or older?
About 85,249 residents of Wyoming (14.5%) were 65 or older in 2015, against 20.0% under 15 and 65.4% aged 15 to 64.
What does the population pyramid of Wyoming show?
In 2015, Wyoming: children under 15 (20.0%) clearly outnumber residents 65 and older (14.5%): a relatively young population. There were 104.5 men for every 100 women.
How fast is the population of Wyoming changing?
The population of Wyoming grew by 3.9% between 2010 and 2015, and by 0.6% in the last year.
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