ZIP Code 21042
ZIP Code Tabulation Area in Howard County, Maryland.
- Population
- 43,021
- Median household income
- $190,504
- Median home value
- $674,700
+4.4%’19–’23
+21.5%’19–’23
+12.4%’19–’23
ZIP Code 21042 (Howard County, Maryland) is home to about 43,021 residents. Its median household income of $190,504 runs above the Howard County figure of $146,982.
From 2019 to 2023, ZIP Code 21042's population grew 4.4% from 41,195 to 43,021, while its median gross rent rose 28.7% from $1,750 to $2,253.
The largest age group is 5 to 17, 21.2% of residents. White (non-Hispanic) residents are the largest group, 57.0% of the population.
Demographics
ACS 2019–2023- Population
- 43,021
- Median age
- 45.0 yrs
- Median household income
- $190,504
- Median home value
- $674,700
- Median gross rent
- $2,253
- Housing units
- 15,269
- Homeownership rate
- 85.4%
- Bachelor's degree or higher
- 74.7%
- Unemployment rate
- 2.1%
Trends
ACS 5-year · 2019–202341,19543,021
$156,812$190,504
$600,500$674,700
$1,750$2,253
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 41,195 | $156,812 | $600,500 | $1,750 |
| 2020 | 42,157 | $158,858 | $599,800 | $1,843 |
| 2021 | 42,952 | $159,032 | $604,600 | $1,872 |
| 2022 | 42,528 | $178,207 | $650,900 | $2,197 |
| 2023 | 43,021 | $190,504 | $674,700 | $2,253 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 54.6%
5 to 1721.2%
18 to 245.6%
25 to 346.4%
35 to 4412.2%
45 to 5415.9%
55 to 6415.2%
65 to 7411.1%
75 and over7.9%
| Count | Share | |
|---|---|---|
| Under 5 | 1,970 | 4.6% |
| 5 to 17 | 9,126 | 21.2% |
| 18 to 24 | 2,425 | 5.6% |
| 25 to 34 | 2,738 | 6.4% |
| 35 to 44 | 5,228 | 12.2% |
| 45 to 54 | 6,825 | 15.9% |
| 55 to 64 | 6,527 | 15.2% |
| 65 to 74 | 4,790 | 11.1% |
| 75 and over | 3,392 | 7.9% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 24,501 | 57.0% |
| Black or African American | 1,789 | 4.2% |
| American Indian & Alaska Native | 120 | 0.3% |
| Asian | 12,623 | 29.3% |
| Native Hawaiian & Pacific Islander | 10 | 0.0% |
| Some other race | 350 | 0.8% |
| Two or more races | 1,772 | 4.1% |
| Hispanic or Latino (any race) | 1,856 | 4.3% |
Educational attainment (age 25+)
No high school diploma2.5%
High school graduate8.8%
Some college or associate's14.0%
Bachelor's degree33.5%
Graduate or professional degree41.3%
| Count | Share | |
|---|---|---|
| No high school diploma | 734 | 2.5% |
| High school graduate | 2,582 | 8.8% |
| Some college or associate's | 4,139 | 14.0% |
| Bachelor's degree | 9,873 | 33.5% |
| Graduate or professional degree | 12,172 | 41.3% |
Commute to work
- Mean travel time to work
- 29 min
Drove alone67.5%
Carpooled3.9%
Public transit0.5%
Walked0.9%
Bicycle0.2%
Worked from home26.2%
Other means0.8%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 14,437 | 67.5% |
| Carpooled | 838 | 3.9% |
| Public transit | 104 | 0.5% |
| Walked | 194 | 0.9% |
| Bicycle | 44 | 0.2% |
| Worked from home | 5,601 | 26.2% |
| Other means | 161 | 0.8% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 2,453 | 15.5% |
| 15 to 29 min | 6,218 | 39.4% |
| 30 to 44 min | 3,997 | 25.3% |
| 45 to 59 min | 1,744 | 11.1% |
| 60+ min | 1,366 | 8.7% |
Households
- Average household size
- 2.86
- Poverty rate
- 2.7% (1,166 of 42,808)
| Count | Share | |
|---|---|---|
| Family households | 12,314 | 82.3% |
| Nonfamily households | 2,644 | 17.7% |
Housing
- Median year structure built
- 1986
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 14,958 | 98.0% |
| Vacant | 311 | 2.0% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 12,778 | 85.4% |
| Renter-occupied | 2,180 | 14.6% |
1-unit, detached76.0%
1-unit, attached10.0%
2 to 4 units0.7%
5 to 19 units8.0%
20 or more units5.3%
Mobile home & other0.0%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 11,605 | 76.0% |
| 1-unit, attached | 1,524 | 10.0% |
| 2 to 4 units | 105 | 0.7% |
| 5 to 19 units | 1,228 | 8.0% |
| 20 or more units | 807 | 5.3% |
| Mobile home & other | 0 | 0.0% |
Geography
- ZCTA
- 21042
- Land area
- 37 sq mi
- Water area
- 0.17 sq mi
- Center point
- 39.2772, -76.8946
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)