ZIP Code 20657
ZIP Code Tabulation Area in Calvert County, Maryland.
- Population
- 20,519
- Median household income
- $117,776
- Median home value
- $317,600
+6.7%’19–’23
+25.6%’19–’23
+32.6%’19–’23
ZIP Code 20657 (Calvert County, Maryland) is home to about 20,519 residents. At $117,776, its median household income sits below Calvert County's $132,059.
Between 2019 and 2023, ZIP Code 20657's population grew 6.7% from 19,226 to 20,519, while its median gross rent rose 26.5% from $1,356 to $1,716.
6.0% of residents live below the poverty line. Households average 2.82 people.
Demographics
ACS 2019–2023- Population
- 20,519
- Median age
- 35.7 yrs
- Median household income
- $117,776
- Median home value
- $317,600
- Median gross rent
- $1,716
- Housing units
- 8,109
- Homeownership rate
- 87.5%
- Bachelor's degree or higher
- 29.4%
- Unemployment rate
- 3.7%
Trends
ACS 5-year · 2019–202319,22620,519
$93,750$117,776
$239,500$317,600
$1,356$1,716
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 19,226 | $93,750 | $239,500 | $1,356 |
| 2020 | 19,711 | $100,227 | $254,300 | $1,418 |
| 2021 | 20,420 | $108,640 | $266,900 | $1,512 |
| 2022 | 21,054 | $110,669 | $307,300 | $1,534 |
| 2023 | 20,519 | $117,776 | $317,600 | $1,716 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 56.3%
5 to 1717.0%
18 to 248.9%
25 to 3416.2%
35 to 4413.5%
45 to 5410.7%
55 to 6414.8%
65 to 748.4%
75 and over4.2%
| Count | Share | |
|---|---|---|
| Under 5 | 1,296 | 6.3% |
| 5 to 17 | 3,497 | 17.0% |
| 18 to 24 | 1,830 | 8.9% |
| 25 to 34 | 3,315 | 16.2% |
| 35 to 44 | 2,765 | 13.5% |
| 45 to 54 | 2,205 | 10.7% |
| 55 to 64 | 3,036 | 14.8% |
| 65 to 74 | 1,718 | 8.4% |
| 75 and over | 857 | 4.2% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 14,542 | 70.9% |
| Black or African American | 3,178 | 15.5% |
| American Indian & Alaska Native | 37 | 0.2% |
| Asian | 368 | 1.8% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 108 | 0.5% |
| Two or more races | 1,047 | 5.1% |
| Hispanic or Latino (any race) | 1,239 | 6.0% |
Educational attainment (age 25+)
No high school diploma5.6%
High school graduate31.1%
Some college or associate's33.8%
Bachelor's degree15.8%
Graduate or professional degree13.7%
| Count | Share | |
|---|---|---|
| No high school diploma | 785 | 5.6% |
| High school graduate | 4,320 | 31.1% |
| Some college or associate's | 4,699 | 33.8% |
| Bachelor's degree | 2,192 | 15.8% |
| Graduate or professional degree | 1,900 | 13.7% |
Commute to work
- Mean travel time to work
- 40 min
Drove alone75.3%
Carpooled4.3%
Public transit2.0%
Walked0.8%
Bicycle0.0%
Worked from home16.4%
Other means1.2%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 8,466 | 75.3% |
| Carpooled | 480 | 4.3% |
| Public transit | 222 | 2.0% |
| Walked | 89 | 0.8% |
| Bicycle | 0 | 0.0% |
| Worked from home | 1,845 | 16.4% |
| Other means | 135 | 1.2% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 1,318 | 14.0% |
| 15 to 29 min | 2,692 | 28.7% |
| 30 to 44 min | 2,367 | 25.2% |
| 45 to 59 min | 769 | 8.2% |
| 60+ min | 2,246 | 23.9% |
Households
- Average household size
- 2.82
- Poverty rate
- 6.0% (1,228 of 20,480)
| Count | Share | |
|---|---|---|
| Family households | 5,242 | 72.0% |
| Nonfamily households | 2,038 | 28.0% |
Housing
- Median year structure built
- 1991
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 7,280 | 89.8% |
| Vacant | 829 | 10.2% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 6,372 | 87.5% |
| Renter-occupied | 908 | 12.5% |
1-unit, detached96.3%
1-unit, attached0.9%
2 to 4 units0.5%
5 to 19 units0.8%
20 or more units1.1%
Mobile home & other0.5%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 7,809 | 96.3% |
| 1-unit, attached | 72 | 0.9% |
| 2 to 4 units | 39 | 0.5% |
| 5 to 19 units | 66 | 0.8% |
| 20 or more units | 86 | 1.1% |
| Mobile home & other | 37 | 0.5% |
Geography
- ZCTA
- 20657
- Land area
- 30 sq mi
- Water area
- 9.14 sq mi
- Center point
- 38.3842, -76.4401
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)