St. Mary's County Commute Time Map & Patterns

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Compare commute patterns and ask AI Map about St. Mary's County.

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You 8/20/26, 12:25 PM
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Map AI 8/20/26, 12:25 PM

Commute Time Burden in St. Mary's County: Annual Hours and Cost

Commuters in St. Mary's County spend about 45 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 188 hours, about 7.8 full days, spent commuting.

That is 22% less time on the road than the Maryland average of 28.8 minutes each way, a difference of 6.2 minutes.

St. Mary's County holds about 1.9% of Maryland's population but accounts for roughly 1.5% of its total commuting time.

Working from home just 2 days a week in St. Mary's County would save about 75 hours of drive time a year, worth roughly $2,333 at the same national wage assumption used above.

Area One-Way Commute Daily Round-Trip Yearly Time Spent Estimated Yearly Cost Local Road Traffic (VPD)
St. Mary's County 22.6 min 45.2 min 188 hrs/yr $5,833 1,273
Maryland 28.8 min 57.5 min 240 hrs/yr $7,433 2,353
United States 22.5 min 44.9 min 187 hrs/yr $5,803 1,355

The estimated yearly cost applies a single national rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area - treat it as a rough estimate, not a paycheck figure. Local road traffic counts, vehicles per day on non-highway roads, come from proprietary Ticon and TrafficZoom data.

Commute Time Map: Maryland Counties

Fastest commutes among counties in Maryland
  1. Allegany County (17.5 min)
  2. Wicomico County (17.8 min)
  3. Talbot County (18.3 min)
Slowest commutes among counties in Maryland
  1. Charles County (41.7 min)
  2. Calvert County (35.3 min)
  3. Prince George's County (32.6 min)

Compare commute times among different counties

On average, it takes 22.6 minutes to get to work in St. Mary's County. That's 1% longer than the 22.5-minute U.S. average.

The most common departure window is 07:00 AM – 07:29 AM , followed by 06:30 AM – 06:59 AM .

Most people travel to work by Car , followed by Worked at Home . About 15.3% work from home.

Commute mode distribution

  • Car: 80.4%
  • Worked at Home: 15.3%
  • Walked: 2.4%
  • Public Transportation: 1.0% unusually low
  • Other: 0.8%
  • Bicycle: 0.1%
  • Motorcycle: < 0.1%
  • Taxi: < 0.1% unusually low

Public Transportation commuting is unusually low in St. Mary's County: 5.0 times less than the Maryland average (1.0% vs 4.9%).

Taxi commuting is essentially absent in St. Mary's County, versus 0.4% in Maryland.

How does St. Mary's County's commute time compare?

Metric St. Mary's County Maryland US Average
Avg. Commute Time 22.6 min 28.8 min 22.5 min
Departure Window 07:00 AM – 07:29 AM 07:00 AM – 07:29 AM 07:00 AM – 07:29 AM
Secondary Departure Window 06:30 AM – 06:59 AM 08:00 AM – 08:29 AM 07:30 AM – 07:59 AM
Work From Home 15.3% 17.2% 13.4%
Walked 2.4% 2.0% 2.4%
Public Transit 1.0% 4.9% 3.5%

The average commute time in St. Mary's County is 22.6 minutes, shorter than the 28.8 minutes in Maryland.

1.0% commute by public transit, lower than the 4.9% in Maryland. 2.4% commute by walking, higher than the 2.0% in Maryland.

Source: U.S. Census Bureau

Frequently Asked Questions

Common questions about commuting in St. Mary's County, Maryland.

Is living in St. Mary's County, Maryland good for avoiding long commute costs?

Commuters here spend an estimated 188 hours a year on the road, worth roughly $5,833 at a typical national wage. That's 22% less than the typical Maryland commuter spends.

When is peak congestion during the morning commute in St. Mary's County, Maryland?

Traffic peaks between 07:00 AM – 07:29 AM in St. Mary's County, Maryland. Leaving before or after this window is the single easiest way to avoid the heaviest local congestion, though 06:30 AM – 06:59 AM also sees a secondary bump.

How common is public transit use in St. Mary's County, Maryland?

Public transit usage is significantly lower here than typical: about 1.0% of commuters use it versus 4.9% in Maryland, meaning a personal vehicle is essential for most workers.

How do commute times compare across counties in Maryland?

Among counties in Maryland, the shortest average commutes are in Allegany County (17.5 min), Wicomico County (17.8 min), Talbot County (18.3 min). The longest are in Charles County (41.7 min), Calvert County (35.3 min), Prince George's County (32.6 min).