Portsmouth, IA Population

Overview

159

Total Population

52.5

Median age

55.97%

Female population %

78.7:100

Gender ratio (M:F)

55-59 years

Largest age group

67.4

Total dependency ratio

White

Largest racial group

Zero

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Portsmouth's population is old compared to the rest of the country:

The median age in Portsmouth is 52.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Portsmouth's population under 18 was 22.01%, compared to the 22.51% nationwide.
Portsmouth's elderly or the senior population (over 65 age) was 18.24% as compared to 16.04% nationwide.
Of the total population in Portsmouth, 22.01% were under the age of 15, 4.40% aged 15 to 29, 55.35% aged 30 to 64, 17.61% aged 65 to 84, and 0.63% were 85 years of age and older.

There are 19 more females than males in Portsmouth:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 55.97% females and 44.03% males in Portsmouth, IA.
The Portsmouth, IA gender ratio is 78.7:100 i.e. 78.7 men to 100 women (0.787).
For male population, the largest age group is 65-69 years with a population of 16.
For the female population, the largest age group is 55-59 years with a population of 17.

Portsmouth's population is not that diverse:

Racial distribution of Portsmouth population: 91.82% are White and 8.18% are multiracial.
Portsmouth's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, Zero is Hispanic or Latino (of any race), and 159 (100% of the total population) is Non-Hispanic.
The largest racial group in Portsmouth is White with a population of 146 (91.82% of the total population).

Portsmouth's population has already reached its peak and is showing a trend of decline:

The peak population was 230 in the year 2000
From 2000 to 2010, Portsmouth's population decreased by 35 (15.22%), as compared to the national growth of 9.63%.
From 2010 to 2020, Portsmouth's population decreased by 10 (5.13%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Portsmouth's population was lowest in year 2019 at 179.