ZIP Code Tabulation Area · Maryland
ZIP Code 20650: St. Mary's County, MD
ZIP Code 20650 (St. Mary's County, Maryland) has an estimated 16,094 residents in 5,642 households. The median household income is $143,116, the median home value is $481,700 and the median gross rent is $1,671/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.
American Community Survey 2020–2024 5-year estimates · Updated
Total population
16,094
Margin of error ±1,123
Median household income
$143,116
Margin of error ±$22,483
Median home value
$481,700
Margin of error ±$20,618
Median gross rent
$1,671/mo
Margin of error ±$511
Median age
38.6 yrs
Margin of error ±1.4 yrs
Mean travel time to work
29.9 min
Margin of error ±5.8 min
How ZIP 20650 compares with Maryland and the U.S.
State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.
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All figures for ZIP 20650
Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).
| Measure | ZIP 20650 | Margin of error | Maryland | United States |
|---|---|---|---|---|
| Total population | 16,094 | ±1,123 | 6,206,011 | 334,922,499 |
| Median age | 38.6 yrs | ±1.4 yrs | 39.4 yrs | 38.9 yrs |
| Households | 5,642 | ±420 | 2,362,928 | 129,227,496 |
| Median household income | $143,116 | ±$22,483 | $103,678 | $80,734 |
| Per capita income | $56,798 | ±$4,054 | $52,979 | $44,673 |
| Poverty rate | 2.4% | ±1.2 pts | 9.4% | 12.5% |
| Unemployment rate | 4.1% | ±2.3 pts | 4.9% | 5.2% |
| Bachelor's degree or higher | 44.8% | ±4.7 pts | 43.4% | 35.7% |
| Median home value | $481,700 | ±$20,618 | $419,900 | $332,700 |
| Median gross rent | $1,671/mo | ±$511 | $1,705/mo | $1,413/mo |
| Owner-occupied homes | 78.7% | ±4.5 pts | 67.6% | 65.2% |
| Mean travel time to work | 29.9 min | ±5.8 min | 31.1 min | 26.4 min |
| Worked from home | 17.4% | ±4.1 pts | 19.3% | 15.1% |
Race and Hispanic or Latino origin
Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.
| Group | ZIP 20650 | Maryland | United States |
|---|---|---|---|
| White alone, not Hispanic or Latino | 78.6% | 46.6% | 57.4% |
| Black or African American alone, not Hispanic or Latino | 6.2% | 28.9% | 11.9% |
| American Indian and Alaska Native alone, not Hispanic or Latino | 0.0% | 0.1% | 0.5% |
| Asian alone, not Hispanic or Latino | 2.4% | 6.5% | 5.9% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino | 0.0% | 0.0% | 0.2% |
| Some other race alone, not Hispanic or Latino | 0.3% | 0.7% | 0.6% |
| Two or more races, not Hispanic or Latino | 5.3% | 4.6% | 4.3% |
| Hispanic or Latino (of any race) | 7.2% | 12.5% | 19.3% |
Where ZIP 20650 is
- State
- Maryland
- Main county
- St. Mary's County
- Largest overlapping place
- Leonardtown (6% of the ZIP's land area)
- Land area
- 61.42 sq mi· about 262 people per sq mi
County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.
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Other ZIP codes in St. Mary's County
20606 St. Mary's County, MD20609 St. Mary's County, MD20618 St. Mary's County, MD20619 California, MD20620 Callaway, MD20621 St. Mary's County, MD20624 St. Mary's County, MD20626 St. Mary's County, MD20628 St. Mary's County, MD20630 St. Mary's County, MD20634 California, MD20636 St. Mary's County, MD20653 St. Mary's County, MD20656 St. Mary's County, MD20659 St. Mary's County, MD20667 St. Mary's County, MD20670 St. Mary's County, MD20674 Piney Point, MD20680 St. Mary's County, MD20684 St. Mary's County, MD20686 St. Mary's County, MD20687 St. Mary's County, MD20690 Tall Timbers, MD20692 St. Mary's County, MD
See every ZIP code in Maryland, or compare ZIP 20650 with another ZIP code.
Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.
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About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.
Sources
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
- U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
- Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.