ZIP Code 21158
ZIP Code Tabulation Area in Carroll County, Maryland.
- Population
- 22,404
- Median household income
- $108,795
- Median home value
- $375,100
+7.2%’19–’23
+15.8%’19–’23
+15.0%’19–’23
Covering part of Carroll County, Maryland, ZIP Code 21158 has about 22,404 residents. At $108,795, its median household income sits below Carroll County's $115,876.
From 2019 to 2023, ZIP Code 21158's population grew 7.2% from 20,906 to 22,404, while its median gross rent rose 16.5% from $1,489 to $1,735.
The largest age group is 5 to 17, 16.2% of residents. White (non-Hispanic) residents are the largest group, 85.4% of the population.
Demographics
ACS 2019–2023- Population
- 22,404
- Median age
- 42.6 yrs
- Median household income
- $108,795
- Median home value
- $375,100
- Median gross rent
- $1,735
- Housing units
- 8,818
- Homeownership rate
- 79.7%
- Bachelor's degree or higher
- 36.3%
- Unemployment rate
- 2.4%
Trends
ACS 5-year · 2019–202320,90622,404
$93,911$108,795
$326,200$375,100
$1,489$1,735
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 20,906 | $93,911 | $326,200 | $1,489 |
| 2020 | 20,773 | $91,655 | $319,000 | $1,413 |
| 2021 | 22,221 | $97,822 | $332,900 | $1,633 |
| 2022 | 23,011 | $109,076 | $358,500 | $1,697 |
| 2023 | 22,404 | $108,795 | $375,100 | $1,735 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 54.9%
5 to 1716.2%
18 to 247.4%
25 to 3411.5%
35 to 4411.9%
45 to 5415.0%
55 to 6414.4%
65 to 7411.3%
75 and over7.4%
| Count | Share | |
|---|---|---|
| Under 5 | 1,101 | 4.9% |
| 5 to 17 | 3,635 | 16.2% |
| 18 to 24 | 1,661 | 7.4% |
| 25 to 34 | 2,568 | 11.5% |
| 35 to 44 | 2,657 | 11.9% |
| 45 to 54 | 3,358 | 15.0% |
| 55 to 64 | 3,225 | 14.4% |
| 65 to 74 | 2,530 | 11.3% |
| 75 and over | 1,669 | 7.4% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 19,143 | 85.4% |
| Black or African American | 1,109 | 5.0% |
| American Indian & Alaska Native | 0 | 0.0% |
| Asian | 552 | 2.5% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 25 | 0.1% |
| Two or more races | 777 | 3.5% |
| Hispanic or Latino (any race) | 798 | 3.6% |
Educational attainment (age 25+)
No high school diploma5.3%
High school graduate29.3%
Some college or associate's29.0%
Bachelor's degree23.0%
Graduate or professional degree13.3%
| Count | Share | |
|---|---|---|
| No high school diploma | 854 | 5.3% |
| High school graduate | 4,691 | 29.3% |
| Some college or associate's | 4,645 | 29.0% |
| Bachelor's degree | 3,687 | 23.0% |
| Graduate or professional degree | 2,130 | 13.3% |
Commute to work
- Mean travel time to work
- 37 min
Drove alone77.0%
Carpooled7.6%
Public transit0.0%
Walked0.5%
Bicycle0.0%
Worked from home14.6%
Other means0.4%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 9,047 | 77.0% |
| Carpooled | 889 | 7.6% |
| Public transit | 0 | 0.0% |
| Walked | 53 | 0.5% |
| Bicycle | 0 | 0.0% |
| Worked from home | 1,711 | 14.6% |
| Other means | 52 | 0.4% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 1,609 | 16.0% |
| 15 to 29 min | 2,489 | 24.8% |
| 30 to 44 min | 2,047 | 20.4% |
| 45 to 59 min | 1,453 | 14.5% |
| 60+ min | 2,443 | 24.3% |
Households
- Average household size
- 2.66
- Poverty rate
- 5.3% (1,171 of 22,273)
| Count | Share | |
|---|---|---|
| Family households | 6,250 | 74.7% |
| Nonfamily households | 2,120 | 25.3% |
Housing
- Median year structure built
- 1985
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 8,370 | 94.9% |
| Vacant | 448 | 5.1% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 6,674 | 79.7% |
| Renter-occupied | 1,696 | 20.3% |
1-unit, detached70.8%
1-unit, attached16.2%
2 to 4 units2.3%
5 to 19 units5.2%
20 or more units5.1%
Mobile home & other0.3%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 6,245 | 70.8% |
| 1-unit, attached | 1,429 | 16.2% |
| 2 to 4 units | 207 | 2.3% |
| 5 to 19 units | 458 | 5.2% |
| 20 or more units | 450 | 5.1% |
| Mobile home & other | 29 | 0.3% |
Geography
- ZCTA
- 21158
- Land area
- 73 sq mi
- Water area
- 0.22 sq mi
- Center point
- 39.6537, -77.0351
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)