Nebraska Population By Age Group and Age Cohort in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 1.95M Nebraska population, the 10-14yrs age group constituted the highest percentage of the total population (7.13%), followed by the 15-19yrs age group (7.01%), and the 20-24yrs age group (6.92%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (59.43%), followed by Children (0-17yrs) (24.90%), and Seniors (65yrs and Over) (15.67%).

The first and second charts below shows the percentage of the population by age group and age cohort respectively. The table below also shows the number and percentages for each age group and age cohort.

You can see similar information for other states, and the United States.

Related Topics: Nebraska ACS-5Yrs Estimates, 2021 Topic List.

Data Source: US Census - ACS 5-Year Estimates.

Nebraska Percentages of Population By Age Group in 2021

10-14yrs

15-19yrs

20-24yrs

5-9yrs

35-39yrs

Under 5yrs

30-34yrs

25-29yrs

60-64yrs

55-59yrs

Nebraska Percentages of Population By Age Cohort in 2021

Adults (18-64yrs)

Children (0-17yrs)

Seniors (65yrs and Over)

Nebraska Population By Age Group in 2021

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Age Group	Number of People	% of Total
10-14yrs	139102	7.13
15-19yrs	136774	7.01
20-24yrs	134953	6.92
5-9yrs	134936	6.92
35-39yrs	132373	6.78
Under 5yrs	130400	6.68
30-34yrs	127618	6.54
25-29yrs	127489	6.53
60-64yrs	122647	6.29
55-59yrs	122330	6.27
40-44yrs	115576	5.92
50-54yrs	111687	5.72
45-49yrs	109824	5.63
65-69yrs	103470	5.30
70-74yrs	76528	3.92
75-79yrs	49580	2.54
85yrs and Over	41228	2.11
80-84yrs	34965	1.79

Nebraska Population By Age Cohort in 2021

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Age Cohort	Number of People	% of Total
Adults (18-64yrs)	1159799	59.43
Children (0-17yrs)	485910	24.90
Seniors (65yrs and Over)	305771	15.67