Montgomery County, MD Population

Overview

1.06 million

Total Population

39.6

Median age

51.35%

Female population %

94.7:100

Gender ratio (M:F)

35-39 years

Largest age group

53.5

Total dependency ratio

White

Largest racial group

208,216

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Montgomery County is 39.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Montgomery County's population under 18 was 23.30%, compared to the 22.51% nationwide.
Montgomery County's elderly or the senior population (over 65 age) was 15.62% as compared to 16.04% nationwide.
Of the total population in Montgomery County, 19.24% were under the age of 15, 17.65% aged 15 to 29, 47.49% aged 30 to 64, 13.55% aged 65 to 84, and 2.06% were 85 years of age and older.

There are 28,617 more females than males in Montgomery County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.35% females and 48.65% males in Montgomery County, MD.
The Montgomery County, MD gender ratio is 94.7:100 i.e. 94.7 men to 100 women (0.947).
For male population, the largest age group is 10-14 years with a population of 37,779.
For the female population, the largest age group is 35-39 years with a population of 39,221.

Montgomery County's population has become increasingly diverse:

Racial distribution of Montgomery County population: 48.85% are White, 18.40% are Black or African American, 0.36% are American Indian and Alaska Native, 15.19% are Asian, 0.03% are Native Hawaiian and other Pacific Islander, 9.90% are some other race and 7.27% are multiracial.
Montgomery County's racial breakdown clearly shows that there is no majority of any race in the county.
By ethnicity, 208,216 is Hispanic or Latino (of any race), and 848,985 (80.30% of the total population) is Non-Hispanic.
The largest racial group in Montgomery County is White with a population of 516,438 (48.85% of the total population).

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

The peak population was 1,060,825 in the year 2020
From 2000 to 2010, Montgomery County's population increased by 97,789 (11.14%), as compared to the national growth of 9.63%.
From 2010 to 2020, Montgomery County's population increased by 85,206 (8.73%), 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, Montgomery County's population was lowest in year 2000 at 877,830.