ZIP Code 21128
ZIP Code Tabulation Area in Baltimore County, Maryland.
- Population
- 14,954
- Median household income
- $123,191
- Median home value
- $424,200
+6.9%’19–’23
+22.7%’19–’23
+29.2%’19–’23
ZIP Code 21128 is a ZIP Code Tabulation Area in Baltimore County, Maryland, home to about 14,954 residents. Its median household income of $123,191 runs above the Baltimore County figure of $90,904.
Between 2019 and 2023, ZIP Code 21128's population grew 6.9% from 13,985 to 14,954, while its median gross rent rose 15.6% from $1,422 to $1,644.
White (non-Hispanic) residents are the largest group, 66.1% of the population. 71.8% of workers drive to work alone.
Demographics
ACS 2019–2023- Population
- 14,954
- Median age
- 40.6 yrs
- Median household income
- $123,191
- Median home value
- $424,200
- Median gross rent
- $1,644
- Housing units
- 5,811
- Homeownership rate
- 83.6%
- Bachelor's degree or higher
- 54.1%
- Unemployment rate
- 2.6%
Trends
ACS 5-year · 2019–202313,98514,954
$100,417$123,191
$328,300$424,200
$1,422$1,644
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 13,985 | $100,417 | $328,300 | $1,422 |
| 2020 | 13,967 | $105,995 | $345,600 | $1,416 |
| 2021 | 14,987 | $112,332 | $362,200 | $1,488 |
| 2022 | 15,934 | $122,021 | $413,800 | $1,680 |
| 2023 | 14,954 | $123,191 | $424,200 | $1,644 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 54.2%
5 to 1717.8%
18 to 247.3%
25 to 3413.0%
35 to 4412.8%
45 to 5414.0%
55 to 6413.6%
65 to 7410.3%
75 and over7.0%
| Count | Share | |
|---|---|---|
| Under 5 | 623 | 4.2% |
| 5 to 17 | 2,659 | 17.8% |
| 18 to 24 | 1,096 | 7.3% |
| 25 to 34 | 1,949 | 13.0% |
| 35 to 44 | 1,915 | 12.8% |
| 45 to 54 | 2,090 | 14.0% |
| 55 to 64 | 2,037 | 13.6% |
| 65 to 74 | 1,533 | 10.3% |
| 75 and over | 1,052 | 7.0% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 9,878 | 66.1% |
| Black or African American | 1,353 | 9.0% |
| American Indian & Alaska Native | 0 | 0.0% |
| Asian | 2,349 | 15.7% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 34 | 0.2% |
| Two or more races | 401 | 2.7% |
| Hispanic or Latino (any race) | 939 | 6.3% |
Educational attainment (age 25+)
No high school diploma6.1%
High school graduate19.6%
Some college or associate's20.2%
Bachelor's degree32.6%
Graduate or professional degree21.6%
| Count | Share | |
|---|---|---|
| No high school diploma | 645 | 6.1% |
| High school graduate | 2,071 | 19.6% |
| Some college or associate's | 2,135 | 20.2% |
| Bachelor's degree | 3,443 | 32.6% |
| Graduate or professional degree | 2,282 | 21.6% |
Commute to work
- Mean travel time to work
- 32 min
Drove alone71.8%
Carpooled6.8%
Public transit3.5%
Walked2.5%
Bicycle0.0%
Worked from home13.0%
Other means2.4%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 5,479 | 71.8% |
| Carpooled | 516 | 6.8% |
| Public transit | 267 | 3.5% |
| Walked | 189 | 2.5% |
| Bicycle | 0 | 0.0% |
| Worked from home | 991 | 13.0% |
| Other means | 185 | 2.4% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 862 | 13.0% |
| 15 to 29 min | 2,225 | 33.5% |
| 30 to 44 min | 2,078 | 31.3% |
| 45 to 59 min | 676 | 10.2% |
| 60+ min | 795 | 12.0% |
Households
- Average household size
- 2.75
- Poverty rate
- 4.1% (611 of 14,910)
| Count | Share | |
|---|---|---|
| Family households | 3,870 | 71.3% |
| Nonfamily households | 1,558 | 28.7% |
Housing
- Median year structure built
- 2000
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 5,428 | 93.4% |
| Vacant | 383 | 6.6% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 4,540 | 83.6% |
| Renter-occupied | 888 | 16.4% |
1-unit, detached56.6%
1-unit, attached18.4%
2 to 4 units1.0%
5 to 19 units18.5%
20 or more units5.5%
Mobile home & other0.0%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 3,290 | 56.6% |
| 1-unit, attached | 1,070 | 18.4% |
| 2 to 4 units | 57 | 1.0% |
| 5 to 19 units | 1,074 | 18.5% |
| 20 or more units | 320 | 5.5% |
| Mobile home & other | 0 | 0.0% |
Geography
- ZCTA
- 21128
- Land area
- 6.81 sq mi
- Water area
- 0.01 sq mi
- Center point
- 39.4047, -76.4482
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)