ZIP Code 21102
ZIP Code Tabulation Area in Carroll County, Maryland.
- Population
- 12,176
- Median household income
- $119,535
- Median home value
- $374,600
+3.3%’19–’23
+32.1%’19–’23
+16.4%’19–’23
ZIP Code 21102 is a ZIP Code Tabulation Area in Carroll County, Maryland, home to about 12,176 residents. Its median household income of $119,535 runs in line with the Carroll County figure of $115,876.
Between 2019 and 2023, ZIP Code 21102's population grew 3.3% from 11,787 to 12,176, while its median gross rent rose 57.7% from $950 to $1,498.
White (non-Hispanic) residents are the largest group, 90.2% of the population. 79.3% of workers drive to work alone.
Demographics
ACS 2019–2023- Population
- 12,176
- Median age
- 45.0 yrs
- Median household income
- $119,535
- Median home value
- $374,600
- Median gross rent
- $1,498
- Housing units
- 4,513
- Homeownership rate
- 88.9%
- Bachelor's degree or higher
- 32.1%
- Unemployment rate
- 1.9%
Trends
ACS 5-year · 2019–202311,78712,176
$90,500$119,535
$321,700$374,600
$950$1,498
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 11,787 | $90,500 | $321,700 | $950 |
| 2020 | 12,043 | $97,399 | $324,100 | $991 |
| 2021 | 12,193 | $103,084 | $335,700 | $1,146 |
| 2022 | 12,024 | $110,503 | $364,400 | $1,283 |
| 2023 | 12,176 | $119,535 | $374,600 | $1,498 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 54.6%
5 to 1715.4%
18 to 247.5%
25 to 3412.7%
35 to 449.8%
45 to 5412.7%
55 to 6418.2%
65 to 7412.1%
75 and over7.0%
| Count | Share | |
|---|---|---|
| Under 5 | 564 | 4.6% |
| 5 to 17 | 1,878 | 15.4% |
| 18 to 24 | 910 | 7.5% |
| 25 to 34 | 1,543 | 12.7% |
| 35 to 44 | 1,189 | 9.8% |
| 45 to 54 | 1,549 | 12.7% |
| 55 to 64 | 2,212 | 18.2% |
| 65 to 74 | 1,475 | 12.1% |
| 75 and over | 856 | 7.0% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 10,983 | 90.2% |
| Black or African American | 253 | 2.1% |
| American Indian & Alaska Native | 77 | 0.6% |
| Asian | 258 | 2.1% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 11 | 0.1% |
| Two or more races | 297 | 2.4% |
| Hispanic or Latino (any race) | 297 | 2.4% |
Educational attainment (age 25+)
No high school diploma2.4%
High school graduate32.3%
Some college or associate's33.1%
Bachelor's degree20.7%
Graduate or professional degree11.5%
| Count | Share | |
|---|---|---|
| No high school diploma | 214 | 2.4% |
| High school graduate | 2,851 | 32.3% |
| Some college or associate's | 2,924 | 33.1% |
| Bachelor's degree | 1,823 | 20.7% |
| Graduate or professional degree | 1,012 | 11.5% |
Commute to work
- Mean travel time to work
- 36 min
Drove alone79.3%
Carpooled8.1%
Public transit0.0%
Walked0.0%
Bicycle0.0%
Worked from home12.3%
Other means0.3%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 5,105 | 79.3% |
| Carpooled | 519 | 8.1% |
| Public transit | 0 | 0.0% |
| Walked | 0 | 0.0% |
| Bicycle | 0 | 0.0% |
| Worked from home | 793 | 12.3% |
| Other means | 17 | 0.3% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 877 | 15.5% |
| 15 to 29 min | 1,445 | 25.6% |
| 30 to 44 min | 1,227 | 21.8% |
| 45 to 59 min | 1,111 | 19.7% |
| 60+ min | 981 | 17.4% |
Households
- Average household size
- 2.71
- Poverty rate
- 4.1% (495 of 12,073)
| Count | Share | |
|---|---|---|
| Family households | 3,451 | 77.6% |
| Nonfamily households | 997 | 22.4% |
Housing
- Median year structure built
- 1983
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 4,448 | 98.6% |
| Vacant | 65 | 1.4% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 3,954 | 88.9% |
| Renter-occupied | 494 | 11.1% |
1-unit, detached87.9%
1-unit, attached8.6%
2 to 4 units1.7%
5 to 19 units1.8%
20 or more units0.0%
Mobile home & other0.0%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 3,967 | 87.9% |
| 1-unit, attached | 387 | 8.6% |
| 2 to 4 units | 76 | 1.7% |
| 5 to 19 units | 83 | 1.8% |
| 20 or more units | 0 | 0.0% |
| Mobile home & other | 0 | 0.0% |
Geography
- ZCTA
- 21102
- Land area
- 41 sq mi
- Water area
- 0.64 sq mi
- Center point
- 39.6922, -76.8476
Counties this ZIP covers
2Compare with nearby ZIP codes
5National 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)