Zip code 21105: Maryland Line, Maryland
Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.
About 21105
21105 is a small-town zip code in Maryland Line, Maryland (Baltimore County), covering 0.1 sq mi of land. About 36 people live here, or 419 per square mile. With so few residents, the Census figures below are rough estimates with wide margins of error.
0% of residents live below the poverty line (U.S.: 12.5%). 0% of occupied homes are lived in by their owners.
39% of adults hold a bachelor's degree or higher (U.S.: 36%). 100% of households speak a language other than English at home, most often Spanish.
How 21105 compares
Only about 36 people live here, so these survey estimates have wide margins of error.
- U.S. 334,922,499 · MD 6,206,011
- Population density419/sq miU.S. 95/sq mi · MD 639/sq mi
- U.S. 12.5% · MD 9.4%
- U.S. 35.7% · MD 43.4%
- U.S. 65.2% · MD 67.6%
- Diversity index47.5U.S. 61.4 · MD 67.7
- Broadband access100%U.S. 91% · MD 92.4%
- U.S. 8.4% · MD 6.3%
- Veterans0%U.S. 6.2% · MD 6.8%
- U.S. 14.1% · MD 16.6%
- U.S. 10.1% · MD 7.7%
- U.S. 51.1% · MD 51.5%
- U.S. 17.2% · MD 16.7%
- U.S. 22% · MD 22.2%
| Measure | 21105 | Baltimore | MD | U.S. | National percentile | Rank in MD |
|---|---|---|---|---|---|---|
| Population | 36 | 850,796 | 6,206,011 | 334,922,499 | — | — |
| Population density | 419/sq mi | 1,422/sq mi | 639/sq mi | 95/sq mi | — | — |
| Poverty rate | 0% | 9.8% | 9.4% | 12.5% | — | — |
| Bachelor's degree or higher | 38.9% | 42.3% | 43.4% | 35.7% | — | — |
| Homeownership rate | 0% | 66.4% | 67.6% | 65.2% | — | — |
| Diversity index | 47.5 | 63.6 | 67.7 | 61.4 | — | — |
| Broadband access | 100% | 91.4% | 92.4% | 91% | — | — |
| Uninsured rate | 0% | 5.4% | 6.3% | 8.4% | — | — |
| Veterans | 0% | 5.8% | 6.8% | 6.2% | — | — |
| Foreign-born residents | 0% | 13.2% | 16.6% | 14.1% | — | — |
| Housing vacancy | 0% | 5.1% | 7.7% | 10.1% | — | — |
| Rent-burdened renters | 100% | 54.2% | 51.5% | 51.1% | — | — |
| Residents 65 and older | 100% | 18.1% | 16.7% | 17.2% | — | — |
| Residents under 18 | 0% | 21.9% | 22.2% | 22% | — | — |
The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.
People
Age
Race and ethnicity
- White39%
- Black0%
- Hispanic61%
- Asian0%
- Native American0%
- Pacific Islander0%
- Other0%
- Multiracial0%
Language spoken at home (households)
Households
- Households
- 14
- Average household size
- 2.6
- Family households
- 100%
- Married couples
- 100%
- Living alone
- 0%
- Veterans (of adults)
- 0%
- Male / female
- 39% / 61%
Income and poverty
Household income distribution
Median household income
Housing
Median home value
Median gross rent
Types of housing
- Housing units
- 14
- Owner-occupied
- 0%
- Vacant
- 0%
- Median year built
- —
- Median rooms
- —
- Renters paying 30%+ of income
- 100%
- Renters paying 50%+ of income
- 100%
- Home value to income
- —
Work and commute
How people get to work
No data reported.
Commute time (one way)
No data reported.
Education, internet and health coverage
Highest education (adults 25+)
- High school graduate or higher
- 100%
- Bachelor's degree or higher
- 38.9%
- Graduate or professional degree
- 0%
- Households with broadband
- 100%
- Cable, fiber or DSL
- 0%
- No internet access
- 0%
- Without health insurance
- 0%
- Limited-English households
- 0%
Geography
- City (USPS)
- Maryland Line
- State
- Maryland
- County
- Baltimore County
- Center point
- 39.7151° N, 76.6523° W
- Land area
- 0.1 sq mi
- Water area
- under 0.1 sq mi
- Time zone
- Eastern Time (UTC-5, UTC-4 in summer)
- Zip type
- Residential delivery area
Zip codes near 21105
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 17349 | New Freedom, PA | 2.1 mi | $120,618 |
| 21053 | Freeland, MD | 3.6 mi | $89,497 |
| 17361 | Shrewsbury, PA | 3.8 mi | $104,958 |
| 17355 | Railroad, PA | 3.9 mi | — |
| 21120 | Parkton, MD | 4.9 mi | $162,052 |
| 17363 | Stewartstown, PA | 5.1 mi | $107,386 |
| 21161 | White Hall, MD | 6 mi | $108,094 |
| 17327 | Glen Rock, PA | 7 mi | $101,106 |
| 17352 | New Park, PA | 8.7 mi | $125,750 |
| 17342 | Loganville, PA | 10 mi | $92,019 |
| 21111 | Monkton, MD | 10 mi | $136,304 |
| 21088 | Lineboro, MD · PO box | 10 mi | — |
Questions about 21105
What city is zip code 21105?
21105 is assigned to Maryland Line, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 21105 in?
21105 is in Baltimore County, Maryland.
What is the population of 21105?
About 36 people live in 21105, according to the Census Bureau's American Community Survey.
What time zone is 21105 in?
21105 is in Eastern Time.
What zip codes are near 21105?
The closest zip codes to 21105 are 17349, 21053, 17361, 17355, 21120.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21105, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.