ZIP Code 20630
ZIP Code Tabulation Area in St. Mary's County, Maryland.
- Population
- 346
- Median household income
- $227,581
- Median home value
- $584,600
+15.0%’19–’23
+134.9%’19–’23
+9.5%’20–’23
ZIP Code 20630 is a ZIP Code Tabulation Area in St. Mary's County, Maryland, home to about 346 residents. Its median household income of $227,581 runs above the St. Mary's County figure of $114,580.
From 2019 to 2023, ZIP Code 20630's population grew 15.0% from 301 to 346, while its median household income rose 134.9% from $96,875 to $227,581.
68.5% of adults 25 and older hold a bachelor's degree or higher. Owners occupy 68.1% of the area's occupied homes.
Demographics
ACS 2019–2023- Population
- 346
- Median age
- 56.7 yrs
- Median household income
- $227,581
- Median home value
- $584,600
- Median gross rent
- —
- Housing units
- 188
- Homeownership rate
- 68.1%
- Bachelor's degree or higher
- 68.5%
- Unemployment rate
- 8.3%
Trends
ACS 5-year · 2019–2023301346
$96,875$227,581
$534,100$584,600
| Year | Population | Median household income | Median home value |
|---|---|---|---|
| 2019 | 301 | $96,875 | — |
| 2020 | 192 | $128,950 | $534,100 |
| 2021 | 305 | $177,760 | $465,300 |
| 2022 | 307 | $193,274 | $572,000 |
| 2023 | 346 | $227,581 | $584,600 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 50.0%
5 to 178.4%
18 to 249.0%
25 to 340.0%
35 to 440.0%
45 to 5419.7%
55 to 6423.1%
65 to 7425.1%
75 and over14.7%
| Count | Share | |
|---|---|---|
| Under 5 | 0 | 0.0% |
| 5 to 17 | 29 | 8.4% |
| 18 to 24 | 31 | 9.0% |
| 25 to 34 | 0 | 0.0% |
| 35 to 44 | 0 | 0.0% |
| 45 to 54 | 68 | 19.7% |
| 55 to 64 | 80 | 23.1% |
| 65 to 74 | 87 | 25.1% |
| 75 and over | 51 | 14.7% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 222 | 64.2% |
| Black or African American | 108 | 31.2% |
| 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 | 16 | 4.6% |
| Hispanic or Latino (any race) | 0 | 0.0% |
Educational attainment (age 25+)
No high school diploma7.3%
High school graduate3.5%
Some college or associate's20.6%
Bachelor's degree17.5%
Graduate or professional degree51.0%
| Count | Share | |
|---|---|---|
| No high school diploma | 21 | 7.3% |
| High school graduate | 10 | 3.5% |
| Some college or associate's | 59 | 20.6% |
| Bachelor's degree | 50 | 17.5% |
| Graduate or professional degree | 146 | 51.0% |
Commute to work
Drove alone17.1%
Carpooled15.6%
Public transit0.0%
Walked0.0%
Bicycle0.0%
Worked from home67.3%
Other means0.0%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 34 | 17.1% |
| Carpooled | 31 | 15.6% |
| Public transit | 0 | 0.0% |
| Walked | 0 | 0.0% |
| Bicycle | 0 | 0.0% |
| Worked from home | 134 | 67.3% |
| Other means | 0 | 0.0% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 0 | 0.0% |
| 15 to 29 min | 9 | 13.8% |
| 30 to 44 min | 56 | 86.2% |
| 45 to 59 min | 0 | 0.0% |
| 60+ min | 0 | 0.0% |
Households
- Average household size
- 1.84
- Poverty rate
- 0.0% (0 of 346)
| Count | Share | |
|---|---|---|
| Family households | 55 | 29.3% |
| Nonfamily households | 133 | 70.7% |
Housing
- Median year structure built
- 1983
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 188 | 100.0% |
| Vacant | 0 | 0.0% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 128 | 68.1% |
| Renter-occupied | 60 | 31.9% |
1-unit, detached100.0%
1-unit, attached0.0%
2 to 4 units0.0%
5 to 19 units0.0%
20 or more units0.0%
Mobile home & other0.0%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 188 | 100.0% |
| 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 | 0 | 0.0% |
Geography
- ZCTA
- 20630
- Land area
- 6.94 sq mi
- Water area
- 7.32 sq mi
- Center point
- 38.1601, -76.4635
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)