ZIP Code 20620
ZIP Code Tabulation Area in St. Mary's County, Maryland.
- Population
- 1,160
- Median household income
- $154,188
- Median home value
- $369,200
-15.3%’19–’23
+61.6%’19–’23
+55.8%’19–’23
ZIP Code 20620 (St. Mary's County, Maryland) is home to about 1,160 residents. The median household income of $154,188 is above the St. Mary's County median ($114,580).
Between 2019 and 2023, ZIP Code 20620's population declined 15.3% from 1,369 to 1,160, while its median gross rent fell 3.5% from $1,410 to $1,360.
Owners occupy 84.8% of the area's occupied homes. The median resident is 38.8 years old.
Demographics
ACS 2019–2023- Population
- 1,160
- Median age
- 38.8 yrs
- Median household income
- $154,188
- Median home value
- $369,200
- Median gross rent
- $1,360
- Housing units
- 426
- Homeownership rate
- 84.8%
- Bachelor's degree or higher
- 17.4%
- Unemployment rate
- 0.0%
Trends
ACS 5-year · 2019–20231,3691,160
$95,417$154,188
$236,900$369,200
$1,410$1,360
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 1,369 | $95,417 | $236,900 | $1,410 |
| 2020 | 1,688 | — | $249,800 | $1,211 |
| 2021 | 1,488 | $137,143 | $245,400 | $1,220 |
| 2022 | 1,325 | $154,128 | $346,000 | $1,400 |
| 2023 | 1,160 | $154,188 | $369,200 | $1,360 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 53.6%
5 to 176.0%
18 to 246.1%
25 to 3429.7%
35 to 448.4%
45 to 5416.2%
55 to 6423.3%
65 to 741.0%
75 and over5.6%
| Count | Share | |
|---|---|---|
| Under 5 | 42 | 3.6% |
| 5 to 17 | 70 | 6.0% |
| 18 to 24 | 71 | 6.1% |
| 25 to 34 | 345 | 29.7% |
| 35 to 44 | 97 | 8.4% |
| 45 to 54 | 188 | 16.2% |
| 55 to 64 | 270 | 23.3% |
| 65 to 74 | 12 | 1.0% |
| 75 and over | 65 | 5.6% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 706 | 60.9% |
| Black or African American | 59 | 5.1% |
| American Indian & Alaska Native | 0 | 0.0% |
| Asian | 44 | 3.8% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 0 | 0.0% |
| Two or more races | 61 | 5.3% |
| Hispanic or Latino (any race) | 290 | 25.0% |
Educational attainment (age 25+)
No high school diploma1.7%
High school graduate35.4%
Some college or associate's45.4%
Bachelor's degree14.3%
Graduate or professional degree3.1%
| Count | Share | |
|---|---|---|
| No high school diploma | 17 | 1.7% |
| High school graduate | 346 | 35.4% |
| Some college or associate's | 444 | 45.4% |
| Bachelor's degree | 140 | 14.3% |
| Graduate or professional degree | 30 | 3.1% |
Commute to work
- Mean travel time to work
- 22 min
Drove alone78.0%
Carpooled3.3%
Public transit0.0%
Walked7.0%
Bicycle0.0%
Worked from home11.6%
Other means0.0%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 423 | 78.0% |
| Carpooled | 18 | 3.3% |
| Public transit | 0 | 0.0% |
| Walked | 38 | 7.0% |
| Bicycle | 0 | 0.0% |
| Worked from home | 63 | 11.6% |
| Other means | 0 | 0.0% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 155 | 32.4% |
| 15 to 29 min | 217 | 45.3% |
| 30 to 44 min | 72 | 15.0% |
| 45 to 59 min | 10 | 2.1% |
| 60+ min | 25 | 5.2% |
Households
- Average household size
- 2.98
- Poverty rate
- 3.7% (43 of 1,152)
| Count | Share | |
|---|---|---|
| Family households | 258 | 66.7% |
| Nonfamily households | 129 | 33.3% |
Housing
- Median year structure built
- 1992
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 387 | 90.8% |
| Vacant | 39 | 9.2% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 328 | 84.8% |
| Renter-occupied | 59 | 15.2% |
1-unit, detached68.8%
1-unit, attached19.2%
2 to 4 units0.0%
5 to 19 units0.0%
20 or more units0.0%
Mobile home & other12.0%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 293 | 68.8% |
| 1-unit, attached | 82 | 19.2% |
| 2 to 4 units | 0 | 0.0% |
| 5 to 19 units | 0 | 0.0% |
| 20 or more units | 0 | 0.0% |
| Mobile home & other | 51 | 12.0% |
Geography
- ZCTA
- 20620
- Land area
- 4.29 sq mi
- Water area
- 0.02 sq mi
- Center point
- 38.2331, -76.5218
Counties this ZIP covers
1Compare 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)