ZIP Code 21155
ZIP Code Tabulation Area in Baltimore County, Maryland.
- Population
- 3,124
- Median household income
- $124,219
- Median home value
- $537,700
+23.4%’19–’23
+16.4%’19–’23
+44.0%’19–’23
Covering part of Baltimore County, Maryland, ZIP Code 21155 has about 3,124 residents. At $124,219, its median household income sits above Baltimore County's $90,904.
Between 2019 and 2023, ZIP Code 21155's population grew 23.4% from 2,532 to 3,124, while its median gross rent rose 6.7% from $1,281 to $1,367.
The typical home was built around 1972. 5.6% of residents live below the poverty line.
Demographics
ACS 2019–2023- Population
- 3,124
- Median age
- 37.1 yrs
- Median household income
- $124,219
- Median home value
- $537,700
- Median gross rent
- $1,367
- Housing units
- 1,098
- Homeownership rate
- 82.8%
- Bachelor's degree or higher
- 48.7%
- Unemployment rate
- 1.9%
Trends
ACS 5-year · 2019–20232,5323,124
$106,731$124,219
$373,300$537,700
$1,281$1,367
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 2,532 | $106,731 | $373,300 | $1,281 |
| 2020 | 2,363 | $120,625 | $379,400 | $1,479 |
| 2021 | 2,803 | $125,395 | $438,400 | $1,458 |
| 2022 | 3,063 | $129,231 | $500,400 | $1,385 |
| 2023 | 3,124 | $124,219 | $537,700 | $1,367 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 55.3%
5 to 1720.0%
18 to 245.6%
25 to 3416.2%
35 to 449.7%
45 to 5410.8%
55 to 6412.2%
65 to 7410.0%
75 and over10.2%
| Count | Share | |
|---|---|---|
| Under 5 | 167 | 5.3% |
| 5 to 17 | 626 | 20.0% |
| 18 to 24 | 175 | 5.6% |
| 25 to 34 | 507 | 16.2% |
| 35 to 44 | 302 | 9.7% |
| 45 to 54 | 336 | 10.8% |
| 55 to 64 | 382 | 12.2% |
| 65 to 74 | 311 | 10.0% |
| 75 and over | 318 | 10.2% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 2,931 | 93.8% |
| Black or African American | 48 | 1.5% |
| American Indian & Alaska Native | 0 | 0.0% |
| Asian | 34 | 1.1% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 0 | 0.0% |
| Two or more races | 54 | 1.7% |
| Hispanic or Latino (any race) | 57 | 1.8% |
Educational attainment (age 25+)
No high school diploma1.0%
High school graduate28.2%
Some college or associate's22.1%
Bachelor's degree31.9%
Graduate or professional degree16.8%
| Count | Share | |
|---|---|---|
| No high school diploma | 21 | 1.0% |
| High school graduate | 608 | 28.2% |
| Some college or associate's | 476 | 22.1% |
| Bachelor's degree | 688 | 31.9% |
| Graduate or professional degree | 363 | 16.8% |
Commute to work
- Mean travel time to work
- 29 min
Drove alone81.2%
Carpooled1.5%
Public transit0.0%
Walked1.3%
Bicycle0.0%
Worked from home15.5%
Other means0.4%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 1,325 | 81.2% |
| Carpooled | 25 | 1.5% |
| Public transit | 0 | 0.0% |
| Walked | 22 | 1.3% |
| Bicycle | 0 | 0.0% |
| Worked from home | 253 | 15.5% |
| Other means | 7 | 0.4% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 270 | 19.6% |
| 15 to 29 min | 396 | 28.7% |
| 30 to 44 min | 364 | 26.4% |
| 45 to 59 min | 202 | 14.6% |
| 60+ min | 147 | 10.7% |
Households
- Average household size
- 2.98
- Poverty rate
- 5.6% (174 of 3,124)
| Count | Share | |
|---|---|---|
| Family households | 774 | 73.9% |
| Nonfamily households | 273 | 26.1% |
Housing
- Median year structure built
- 1972
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 1,047 | 95.4% |
| Vacant | 51 | 4.6% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 867 | 82.8% |
| Renter-occupied | 180 | 17.2% |
1-unit, detached85.5%
1-unit, attached7.1%
2 to 4 units2.9%
5 to 19 units0.9%
20 or more units0.0%
Mobile home & other3.6%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 939 | 85.5% |
| 1-unit, attached | 78 | 7.1% |
| 2 to 4 units | 32 | 2.9% |
| 5 to 19 units | 10 | 0.9% |
| 20 or more units | 0 | 0.0% |
| Mobile home & other | 39 | 3.6% |
Geography
- ZCTA
- 21155
- Land area
- 22 sq mi
- Water area
- 0.06 sq mi
- Center point
- 39.5736, -76.8061
Counties this ZIP covers
2Compare 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)