ZIP Code 20659
ZIP Code Tabulation Area in St. Mary's County, Maryland.
- Population
- 23,918
- Median household income
- $117,571
- Median home value
- $388,400
+2.6%’19–’23
+23.4%’19–’23
+30.3%’19–’23
ZIP Code 20659 (St. Mary's County, Maryland) is home to about 23,918 residents. The median household income of $117,571 is in line with the St. Mary's County median ($114,580).
Between 2019 and 2023, ZIP Code 20659's population grew 2.6% from 23,312 to 23,918, while its median gross rent rose 46.3% from $1,217 to $1,781.
The largest age group is 5 to 17, 21.0% of residents. White (non-Hispanic) residents are the largest group, 85.5% of the population.
Demographics
ACS 2019–2023- Population
- 23,918
- Median age
- 37.5 yrs
- Median household income
- $117,571
- Median home value
- $388,400
- Median gross rent
- $1,781
- Housing units
- 8,546
- Homeownership rate
- 90.5%
- Bachelor's degree or higher
- 25.8%
- Unemployment rate
- 3.2%
Trends
ACS 5-year · 2019–202323,31223,918
$95,275$117,571
$298,100$388,400
$1,217$1,781
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 23,312 | $95,275 | $298,100 | $1,217 |
| 2020 | 23,030 | $100,000 | $311,900 | $1,263 |
| 2021 | 23,990 | $108,183 | $323,500 | $1,438 |
| 2022 | 23,346 | $115,729 | $371,100 | $1,583 |
| 2023 | 23,918 | $117,571 | $388,400 | $1,781 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 57.2%
5 to 1721.0%
18 to 247.5%
25 to 349.5%
35 to 4415.1%
45 to 5411.8%
55 to 6412.9%
65 to 748.9%
75 and over6.1%
| Count | Share | |
|---|---|---|
| Under 5 | 1,734 | 7.2% |
| 5 to 17 | 5,019 | 21.0% |
| 18 to 24 | 1,791 | 7.5% |
| 25 to 34 | 2,269 | 9.5% |
| 35 to 44 | 3,610 | 15.1% |
| 45 to 54 | 2,821 | 11.8% |
| 55 to 64 | 3,080 | 12.9% |
| 65 to 74 | 2,134 | 8.9% |
| 75 and over | 1,460 | 6.1% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 20,439 | 85.5% |
| Black or African American | 1,596 | 6.7% |
| American Indian & Alaska Native | 0 | 0.0% |
| Asian | 143 | 0.6% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 57 | 0.2% |
| Two or more races | 937 | 3.9% |
| Hispanic or Latino (any race) | 746 | 3.1% |
Educational attainment (age 25+)
No high school diploma8.0%
High school graduate35.0%
Some college or associate's31.2%
Bachelor's degree14.9%
Graduate or professional degree10.9%
| Count | Share | |
|---|---|---|
| No high school diploma | 1,231 | 8.0% |
| High school graduate | 5,381 | 35.0% |
| Some college or associate's | 4,800 | 31.2% |
| Bachelor's degree | 2,287 | 14.9% |
| Graduate or professional degree | 1,675 | 10.9% |
Commute to work
- Mean travel time to work
- 42 min
Drove alone74.0%
Carpooled7.1%
Public transit2.9%
Walked1.0%
Bicycle0.2%
Worked from home14.5%
Other means0.3%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 8,431 | 74.0% |
| Carpooled | 812 | 7.1% |
| Public transit | 325 | 2.9% |
| Walked | 111 | 1.0% |
| Bicycle | 23 | 0.2% |
| Worked from home | 1,652 | 14.5% |
| Other means | 39 | 0.3% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 1,110 | 11.4% |
| 15 to 29 min | 2,693 | 27.6% |
| 30 to 44 min | 2,054 | 21.1% |
| 45 to 59 min | 926 | 9.5% |
| 60+ min | 2,958 | 30.4% |
Households
- Average household size
- 2.95
- Poverty rate
- 7.2% (1,712 of 23,879)
| Count | Share | |
|---|---|---|
| Family households | 6,329 | 78.1% |
| Nonfamily households | 1,772 | 21.9% |
Housing
- Median year structure built
- 1988
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 8,101 | 94.8% |
| Vacant | 445 | 5.2% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 7,328 | 90.5% |
| Renter-occupied | 773 | 9.5% |
1-unit, detached96.0%
1-unit, attached0.7%
2 to 4 units1.1%
5 to 19 units0.0%
20 or more units0.1%
Mobile home & other2.0%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 8,208 | 96.0% |
| 1-unit, attached | 62 | 0.7% |
| 2 to 4 units | 98 | 1.1% |
| 5 to 19 units | 0 | 0.0% |
| 20 or more units | 5 | 0.1% |
| Mobile home & other | 173 | 2.0% |
Geography
- ZCTA
- 20659
- Land area
- 97 sq mi
- Water area
- 9.49 sq mi
- Center point
- 38.4079, -76.7320
Counties this ZIP covers
2Compare with nearby ZIP codes
6National ZIP rankings
21- Largest by population
- Most densely populated
- Highest median household income
- Highest median home value
- Most affordable home values
- Highest median gross rent
- Cheapest median gross rent
- Oldest by median age
- Youngest by median age
- Most college-educated
- Highest poverty rate
- Lowest poverty rate
- Highest homeownership rate
- Lowest homeownership rate
- Longest commutes
- Shortest commutes
- Largest households
- Newest housing
- Oldest housing
- Fastest-growing (2019–2023)
- Fastest-shrinking (2019–2023)