ZIP Code 20628
ZIP Code Tabulation Area in St. Mary's County, Maryland.
- Population
- 791
- Median household income
- $160,043
- Median home value
- $412,100
+65.8%’19–’23
+10.4%’19–’23
+11.7%’20–’23
ZIP Code 20628 is a ZIP Code Tabulation Area in St. Mary's County, Maryland, home to about 791 residents. Its median household income of $160,043 runs above the St. Mary's County figure of $114,580.
Between 2019 and 2023, ZIP Code 20628's population grew 65.8% from 477 to 791, while its median household income rose 10.4% from $145,000 to $160,043.
Households average 2.43 people. 42.7% of adults 25 and older hold a bachelor's degree or higher.
Demographics
ACS 2019–2023- Population
- 791
- Median age
- 55.5 yrs
- Median household income
- $160,043
- Median home value
- $412,100
- Median gross rent
- —
- Housing units
- 389
- Homeownership rate
- 89.6%
- Bachelor's degree or higher
- 42.7%
- Unemployment rate
- 5.5%
Trends
ACS 5-year · 2019–2023477791
$145,000$160,043
$369,000$412,100
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 477 | $145,000 | — | — |
| 2020 | 452 | $137,426 | $369,000 | — |
| 2021 | 586 | $101,025 | $425,700 | $1,277 |
| 2022 | 631 | $111,550 | $432,400 | — |
| 2023 | 791 | $160,043 | $412,100 | — |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 54.4%
5 to 1710.7%
18 to 242.8%
25 to 3414.3%
35 to 4414.0%
45 to 541.1%
55 to 6425.8%
65 to 7424.9%
75 and over1.9%
| Count | Share | |
|---|---|---|
| Under 5 | 35 | 4.4% |
| 5 to 17 | 85 | 10.7% |
| 18 to 24 | 22 | 2.8% |
| 25 to 34 | 113 | 14.3% |
| 35 to 44 | 111 | 14.0% |
| 45 to 54 | 9 | 1.1% |
| 55 to 64 | 204 | 25.8% |
| 65 to 74 | 197 | 24.9% |
| 75 and over | 15 | 1.9% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 474 | 59.9% |
| Black or African American | 135 | 17.1% |
| American Indian & Alaska Native | 0 | 0.0% |
| Asian | 0 | 0.0% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 0 | 0.0% |
| Two or more races | 85 | 10.7% |
| Hispanic or Latino (any race) | 97 | 12.3% |
Educational attainment (age 25+)
No high school diploma11.1%
High school graduate21.9%
Some college or associate's24.3%
Bachelor's degree25.6%
Graduate or professional degree17.1%
| Count | Share | |
|---|---|---|
| No high school diploma | 72 | 11.1% |
| High school graduate | 142 | 21.9% |
| Some college or associate's | 158 | 24.3% |
| Bachelor's degree | 166 | 25.6% |
| Graduate or professional degree | 111 | 17.1% |
Commute to work
- Mean travel time to work
- 19 min
Drove alone100.0%
Carpooled0.0%
Public transit0.0%
Walked0.0%
Bicycle0.0%
Worked from home0.0%
Other means0.0%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 381 | 100.0% |
| Carpooled | 0 | 0.0% |
| Public transit | 0 | 0.0% |
| Walked | 0 | 0.0% |
| Bicycle | 0 | 0.0% |
| Worked from home | 0 | 0.0% |
| Other means | 0 | 0.0% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 148 | 38.8% |
| 15 to 29 min | 133 | 34.9% |
| 30 to 44 min | 100 | 26.2% |
| 45 to 59 min | 0 | 0.0% |
| 60+ min | 0 | 0.0% |
Households
- Average household size
- 2.43
- Poverty rate
- 4.8% (38 of 791)
| Count | Share | |
|---|---|---|
| Family households | 234 | 71.8% |
| Nonfamily households | 92 | 28.2% |
Housing
- Median year structure built
- 1946
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 326 | 83.8% |
| Vacant | 63 | 16.2% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 292 | 89.6% |
| Renter-occupied | 34 | 10.4% |
1-unit, detached95.9%
1-unit, attached0.0%
2 to 4 units0.0%
5 to 19 units0.0%
20 or more units0.0%
Mobile home & other4.1%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 373 | 95.9% |
| 1-unit, attached | 0 | 0.0% |
| 2 to 4 units | 0 | 0.0% |
| 5 to 19 units | 0 | 0.0% |
| 20 or more units | 0 | 0.0% |
| Mobile home & other | 16 | 4.1% |
Geography
- ZCTA
- 20628
- Land area
- 6.49 sq mi
- Water area
- 6.02 sq mi
- Center point
- 38.1530, -76.3399
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)