Montgomery County, Maryland Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Montgomery County, MD Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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A+
Health Top gradeHealthiest county in Maryland
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A
Income Above averageAmong the top 3 wealthiest counties in Maryland
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A+
Education Top gradeAmong the top 3 best educated counties in Maryland
Source: Map AI Methodology
Population: density and quick facts
| Metric | Montgomery County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Population | 1,065,586 | 6,204,886 | 337,468,954 |
| Population density (per sq mi) | 2101.9 | 500.2 | 86.4 |
| Population growth (%/yr) | 0.46% | 0.51% | 0.59% |
| Median age | 40.4 | 38.0 | 37.3 |
| Households | 389,087 | 2,362,551 | 130,235,071 |
Population in Montgomery County grew by 12.5% from 2009 to 2024, reaching 1,065,586 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Montgomery County is Millennials, aged 29–44, at 21.8% of residents. That is 0.5 points below Maryland as a whole.
- Gen Z 13–28 210,657 19.8% -0.5 pts
- Millennials 29–44 232,336 21.8% -0.5 pts
- Gen X 45–60 231,717 21.7% +0.7 pts
- Boomers 61–79 172,262 16.2% -0.3 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Maryland, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 51.1% of the people living in Montgomery County and men 48.9%.
- Women 51.1% Maryland 51.5%
- Men 48.9% Maryland 48.5%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Montgomery County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Montgomery County has a the economy index of A, which means it is very prosperous.
| Metric | Montgomery County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Median household income | $132,324 | $103,916 | $80,455 |
| Income growth (%/yr) | 3.51% | 3.98% | 4.80% |
| Unemployment rate | 4.9% | 4.8% | 5.2% |
The median household income in Montgomery County is about 27% higher than in Maryland.
Housing
| Metric | Montgomery County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Median home price | $378,273 | $267,101 | $248,835 |
| Median rent | $2,068 | $1,704 | $1,407 |
| Homeownership rate | 65.3% | 67.6% | 65.2% |
The median home price in Montgomery County is about 15.2 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,068 per month for that long.
Commute Time & Mobility
Commuters in Montgomery County spend about 62 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 257 hours, about 10.7 full days, spent commuting.
| Metric | Montgomery County | Maryland Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 30.9 | 28.3 | 22.4 |
| Round-trip commute (min) | 61.7 | 56.5 | 44.8 |
| Yearly time spent (hours) | 257 | 236 | 187 |
| Estimated yearly cost | $7,971 | $7,301 | $5,790 |
| Work from home | 28.3% | 19.3% | 15.0% |
| Highway traffic (vehicles/day) | 20,076 | 16,437 | 8,813 |
| Local road traffic (vehicles/day) | 3,443 | 2,353 | 1,355 |
Fastest commutes among counties in
Maryland:
Talbot County (17.8 min), Allegany County (17.8 min), Wicomico County (18.1 min).
Slowest:
Charles County (40.0 min), Calvert County (33.6 min), Prince George's County (32.5 min).
The average commute time in Montgomery County is 31 minutes, longer than the 28 minutes in Maryland.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Montgomery County has a education index of A+, which means it is exceptionally educated.
| Metric | Montgomery County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 56.4% | 39.3% | 31.6% |
| Average household size | 2.72 | 2.57 | 2.53 |
Highest education index among counties in
Maryland:
Howard County (0.5), Montgomery County (0.5), Talbot County (0.4).
Lowest:
Somerset County (0.2), Caroline County (0.2), Allegany County (0.2).
Health
Montgomery County has a health index of A+, which means it is exceptionally healthy.
| Metric | Montgomery County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 83.0 | 78.4 | 78.3 |
| Self-rated poor health | 9.2% | 13.2% | 16.3% |
| Smokers | 9.0% | 15.9% | 19.0% |
Highest health index among counties in
Maryland:
Montgomery County (0.8), Howard County (0.8), Frederick County (0.8).
Lowest:
Baltimore city (0.8), Somerset County (0.8), Dorchester County (0.8).
Montgomery County, MD Compared With Nearby Counties
Montgomery County, MD is the largest of the 4 counties compared here, 1,065,586 residents against a local median of 336,328. The measure that sets Montgomery County, MD apart most is commute: 30.9 min, 19% above the local median of 25.8 min. That is the weaker end of the local range on this measure.
The counties themselves spread 4.9 min on commute, so Montgomery County, MD sits at one end of an already wide local range rather than apart from it. Montgomery County, MD has the 4th lowest commute of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Montgomery County, MD | 1,065,586 | $132,324 #3/4 | $378,273 #3/4 | 30.9 min #4/4 |
| Arlington County, VA | 236,150 | $141,911 | $370,061 | 25.4 min |
| Howard County, MD | 336,328 | $149,813 | $444,355 | 25.8 min |
| District of Columbia, DC | 678,314 | $110,571 | $597,276 | 30.3 min |
Frequently Asked Questions
Common questions about Montgomery County, Maryland.
What is the population of Montgomery County, Maryland?
About 1,065,586 people live in Montgomery County, Maryland, in 389,087 households of 2.7 people on average. The median age is 40.4, so residents are older than the U.S. median of 37.3 by about 3 years.
Is Montgomery County, Maryland mostly urban or rural?
Averaged over its land area, Montgomery County, Maryland has 2,102 people per square mile, a density typical of urban and suburban areas. That is about 24 times the U.S. average of 86.
Is Montgomery County, Maryland an affordable place to live?
The median home costs 2.9 times the median household income ($378,273 against $132,324), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $2,068 a month takes about 19% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How educated are people in Montgomery County, Maryland?
56.4% of adults in Montgomery County, Maryland hold a bachelor's degree or higher (about 6 in 10), well above the U.S. share of 31.6%.
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