Montgomery County Population

1790–2026

880.13K

2026 projection

2.7% since 2020 (increase)

0200K400K600K800K1M18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Montgomery County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026880,126+2,4830.28%
2025877,643+2,4830.28%
2024875,160+5,0520.58%
2023870,108+4,6250.53%
2022865,483+1,1970.14%
2021864,286+7,4570.87%
2020856,829+26,4323.18%
2019830,397+3,4020.41%
2018826,995+2,4620.30%
2017824,533+4,4270.54%

Showing 10 of 38 years.

Montgomery County Demographics

41.2median age

Median age

Female42.4 yrs
Male40.2 yrs

Adults

682,880
163,106 seniors (65+) · 24% of adults519,774 other adults

Sex

Female 51% · 442,276Male 49% · 425,297

Population by age

MaleFemale85+ years, male: 7,74385+ years, female: 14,16180–84 years, male: 8,40180–84 years, female: 11,61775–79 years, male: 11,81675–79 years, female: 15,95470–74 years, male: 18,80770–74 years, female: 21,72265–69 years, male: 25,00265–69 years, female: 27,88360–64 years, male: 29,92260–64 years, female: 30,76755–59 years, male: 27,73855–59 years, female: 29,93650–54 years, male: 28,02350–54 years, female: 28,23345–49 years, male: 26,18545–49 years, female: 26,15040–44 years, male: 30,35240–44 years, female: 28,51035–39 years, male: 28,63135–39 years, female: 30,01430–34 years, male: 28,39230–34 years, female: 27,63325–29 years, male: 25,66625–29 years, female: 24,76720–24 years, male: 23,85320–24 years, female: 24,59415–19 years, male: 27,67115–19 years, female: 27,12310–14 years, male: 27,59610–14 years, female: 25,0795–9 years, male: 26,2175–9 years, female: 26,2250–4 years, male: 23,2820–4 years, female: 21,90885+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–410K10K20K20K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 8,676 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Montgomery County Income

$113,915median household income

Median household income

$113,915

Half of households earn more, half earn less

Median earnings

$70,663

Typical yearly pay for a worker 25 or older.

Poverty rate

6.5%

About 1 in 15 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Montgomery County Marital Status

53% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married53%55%51%
Never married32%34%29%
Divorced9%7%10%
Widowed6%3%9%
Separated1%1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year