PlainZIP

Maryland Line, MD · standard

ZIP Code 21105

Baltimore County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

65
214/sq mi
38.9%
Bachelor's or higher

ZIP code 21105 is a sparsely populated ZIP (a standard USPS delivery area) in Maryland Line, Baltimore County, Maryland, home to just 65 residents across 0.3 square miles, a density of 214 people per square mile, in the New York time zone.

Median household income is not on file for ZIP 21105, but per-capita income is -. Poverty here runs at 0.0%, with unemployment measured at -. Housing costs here run - for a typical home value, with rent averaging - a month; 0.0% of homes are owner-occupied.

A solid share of residents have a four-year degree: 38.9% of adults hold a bachelor's degree or higher, the median age is -, and the average commute is -. To put 21105 in local context, 10 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Baltimore County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21105, Maryland Line, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

65

Population

0.3

Area (sq mi)

214

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21105?

-

Median Age

38.9%

Male

61.1%

Female

0.0%

Foreign-Born

White 38.9%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 61.1%
Hispanic or Latino 61.1%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

0.0%

Poverty Rate

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 38.9%
Bachelor's Degree or Higher 38.9%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

14

Total Housing Units

14

Occupied Units

0

Vacant Units

2.57

Avg Household Size

Occupancy Type

Owner 0.0%
Renter 100.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 9 business establishments in ZIP 21105, employing approximately 61 people with a combined annual payroll of $3,504,000.

9

Businesses

61

Employees

$3.5M

Annual Payroll

0

Industry Sectors

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21105 vs 17349 →

ZIP 21105 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21105 ranks #0 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
17349 New Freedom, PA 7,570 3.2 mi
17361 Shrewsbury, PA 5,806 3.8 mi
21053 Freeland, MD 3,305 3.7 mi
17355 Railroad, PA 261 4.0 mi
21120 Parkton, MD 6,967 5.0 mi
17363 Stewartstown, PA 9,413 5.1 mi
21161 White Hall, MD 5,490 5.9 mi
17327 Glen Rock, PA 7,565 7.1 mi
21111 Monkton, MD 4,903 10.1 mi
17360 Seven Valleys, PA 5,927 11.0 mi

More ZIP Codes in Baltimore County

21234 standard
Parkville, MD
Pop: 69,752
21222 standard
Dundalk, MD
Pop: 55,786
21117 standard
Owings Mills, MD
Pop: 53,778
21207 standard
Gwynn Oak, MD
Pop: 48,133
21228 standard
Catonsville, MD
Pop: 47,577
21221 standard
Essex, MD
Pop: 42,154

Related Areas

Baltimore County Maryland Line, MD Maryland

Frequently Asked Questions

What county is ZIP code 21105 in? ▼
ZIP code 21105 (Maryland Line) is located in Baltimore County, Maryland. Baltimore County contains multiple ZIP codes, see the full list at /counties/baltimore-md-24005.
What is the population of ZIP code 21105? ▼
ZIP code 21105 in Maryland Line, MD has a population of 65 according to the Census Bureau ACS 2023 estimates.
What is the demographic makeup of ZIP 21105? ▼
The largest racial group in ZIP 21105 is Two or More Ethnicities at 61.1%. Hispanic or Latino residents make up 61.1% of the population.
How many businesses are in ZIP code 21105? ▼
ZIP code 21105 has 9 business establishments employing approximately 61 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 21105? ▼
In ZIP code 21105, 38.9% of residents aged 25+ have a high school diploma or higher, and 38.9% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).

Read our methodology to see how this data is sourced, computed, and verified.