Baltimore County, Maryland Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Baltimore 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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B
Health Around average
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B
Income Around average
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B
Education Around averageBetter educated than 78% of counties in Maryland
Source: Map AI Methodology
Population: density and quick facts
| Metric | Baltimore County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Population | 850,783 | 6,204,886 | 337,468,954 |
| Population density (per sq mi) | 1248.4 | 500.2 | 86.4 |
| Population growth (%/yr) | 0.38% | 0.51% | 0.59% |
| Median age | 38.5 | 38.0 | 37.3 |
| Households | 332,798 | 2,362,551 | 130,235,071 |
Population in Baltimore County grew by 7.7% from 2009 to 2024, reaching 850,783 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Baltimore County is Millennials, aged 29–44, at 21.7% of residents. That is 0.6 points below Maryland as a whole.
- Gen Z 13–28 174,037 20.5% +0.2 pts
- Millennials 29–44 184,580 21.7% -0.6 pts
- Gen X 45–60 169,007 19.9% -1.2 pts
- Boomers 61–79 150,110 17.6% +1.1 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 52.4% of the people living in Baltimore County and men 47.6%.
- Women 52.4% Maryland 51.5%
- Men 47.6% Maryland 48.5%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Baltimore County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Baltimore County has a the economy index of B, which means it is quite prosperous.
| Metric | Baltimore County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Median household income | $92,513 | $103,916 | $80,455 |
| Income growth (%/yr) | 3.67% | 3.98% | 4.80% |
| Unemployment rate | 4.9% | 4.8% | 5.2% |
The median household income in Baltimore County is about 11% lower than in Maryland.
Housing
| Metric | Baltimore County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Median home price | $326,717 | $267,101 | $248,835 |
| Median rent | $1,627 | $1,704 | $1,407 |
| Homeownership rate | 66.4% | 67.6% | 65.2% |
The median home price in Baltimore County is about 16.7 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,627 per month for that long.
Commute Time & Mobility
Commuters in Baltimore County spend about 52 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 216 hours, about 9.0 full days, spent commuting.
| Metric | Baltimore County | Maryland Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 25.9 | 28.3 | 22.4 |
| Round-trip commute (min) | 51.8 | 56.5 | 44.8 |
| Yearly time spent (hours) | 216 | 236 | 187 |
| Estimated yearly cost | $6,685 | $7,301 | $5,790 |
| Work from home | 16.5% | 19.3% | 15.0% |
| Highway traffic (vehicles/day) | 18,253 | 16,437 | 8,813 |
| Local road traffic (vehicles/day) | 2,841 | 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 Baltimore County is 26 minutes, shorter 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
Baltimore County has a education index of B, which means it is quite educated.
| Metric | Baltimore County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 38.2% | 39.3% | 31.6% |
| Average household size | 2.50 | 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
Baltimore County has a health index of B, which means it is quite healthy.
| Metric | Baltimore County | Maryland Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 78.1 | 78.4 | 78.3 |
| Self-rated poor health | 12.6% | 13.2% | 16.3% |
| Smokers | 14.1% | 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).
Baltimore County, MD Compared With Nearby Counties
Baltimore County, MD is the largest of the 5 counties compared here, 850,783 residents against a local median of 300,025. The measure that sets Baltimore County, MD apart most is median household income: $92,513, 24% below the local median of $121,633. That is the weaker end of the local range on this measure.
Median home price tells the same story from another angle: $326,717 against a local median of $425,348, 23% below it. The counties themselves spread $36,783 on median household income, so Baltimore County, MD sits at one end of an already wide local range rather than apart from it. Baltimore County, MD has the 5th highest median household income of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Baltimore County, MD | 850,783 | $92,513 #5/5 | $326,717 #5/5 | 25.9 min #3/5 |
| Harford County, MD | 263,722 | $113,029 | $406,848 | 30.5 min |
| Howard County, MD | 336,328 | $149,813 | $444,355 | 25.8 min |
| Carroll County, MD | 175,325 | $118,379 | $443,848 | 32.3 min |
| Anne Arundel County, MD | 597,957 | $124,886 | $348,208 | 25.7 min |
Frequently Asked Questions
Common questions about Baltimore County, Maryland.
What is the population of Baltimore County, Maryland?
About 850,783 people live in Baltimore County, Maryland, in 332,798 households of 2.5 people on average. The median age is 38.5, close to the U.S. median of 37.3.
Is Baltimore County, Maryland mostly urban or rural?
Averaged over its land area, Baltimore County, Maryland has 1,248 people per square mile, a density typical of urban and suburban areas. That is about 14 times the U.S. average of 86.
Is Baltimore County, Maryland an affordable place to live?
The median home costs 3.5 times the median household income ($326,717 against $92,513), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,627 a month takes about 21% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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