21102

Name: ZIP code 21102, Maryland
Address: MD, 21102, US

ZIP code 21102 is in Carroll County, Maryland, and crosses into 1 other county. About 12,162 people live here in 4,413 households. The median home value is $392,800 and the median household income $135,069. The average commute takes about 39 minutes.

ZIP code tabulation area · ACS 2020–2024 · Updated October 24, 2026

12,162residentsACS 2020–2024

$135,069median household incomeCarroll County: $118K

$392,800median home valueCarroll County: $434K

94%of households have broadbandhome internet subscription

21102 in MarylandZIP codes coloured by median household income

21102

<$45K$125K+

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates · U.S. Census Bureau, 2024 Gazetteer and 2020 ZCTA relationship files

People.

12,162 residents in 4,413 households, next to the Carroll County figure.

21%

under 18

18%

aged 18–34

17%

aged 65 and over

19%

of households are people living alone

69%

of households are married couples

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Homes.

4,511 housing units; the median owner-occupied home is valued at $392,800 (±$19,584).

89%

of households own their home

89%

of homes are detached single-family houses

are in buildings with 5 or more units

are mobile homes

of housing units are vacant

$1,484

median gross rent a month

When homes were built

2020 or later0%

2010–20195%

2000–200919%

1990–199912%

1980–198918%

1970–197918%

1960–19698%

1950–19593%

1940–19494%

1939 or earlier15%

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Income and work.

Household income and work, in 2024 dollars; median household income ±$20,392.

$135,069

median household income

3.4%

of people live below the poverty line

1.2%

unemployment rate

35%

of adults 25+ hold a bachelor’s degree or higher

The poverty rate uses the federal poverty thresholds, which vary with family size. It says nothing on its own about what a neighborhood is like to live in.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Getting around.

How workers aged 16 and over get to work, and how long it takes.

39 min

average commute to work

37%

of commuters travel 45 minutes or more

86%

of workers drive or carpool

take public transportation

walk or bike

14%

work from home

of households have no car

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Internet.

Home internet subscriptions.

94%

of households have a broadband subscription

have no internet access at home

American Community Survey figures are estimates from a rolling sample, averaged over 2020–2024. Each comes with a margin of error, which is wider in places with fewer people.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Businesses in 21102.

229 business establishments with paid employees have an address in this ZIP code.

Grocery stores and supermarkets0

Convenience stores0

Pharmacies and drug stores0

Retail bakeries0

Full-service restaurants4

Limited-service restaurants7

Coffee shops and snack bars0

Bars0

Physicians’ offices3

Dentists’ offices3

Child care centers4

Gyms and fitness centers0

Movie theaters0

Museums0

Counts are business establishments with paid employees, by the ZIP code of their address. Self-employed people without staff, and public facilities such as libraries, are not included.

Source: U.S. Census Bureau, ZIP Code Business Patterns 2023

Health.

Estimated share of adults in 21102, next to the national figure.

77%

had a routine checkup in the past year

67%

visited a dentist in the past year

of 18–64s have no health insurance

23%

get no leisure-time physical activity

35%

usually sleep less than 7 hours

11%

smoke

37%

have obesity

11%

have diagnosed diabetes

35%

have high blood pressure

14%

report fair or poor general health

15%

report frequent mental distress

31%

often feel lonely

faced food insecurity in the past year

faced housing insecurity in the past year

lacked reliable transportation in the past year

These are model-based estimates for adults from the CDC’s PLACES project, combining national health surveys with local population data. They are not counts of local patients, and small differences between nearby ZIP codes are within the margin of the model.

Source: Centers for Disease Control and Prevention, PLACES 2025 release (ZCTA), public domain

Nearest public schools.

In a straight line from the center of the ZIP code. Attendance zones are set by each school district.

Ebb Valley ElementaryManchester2.4 mi

Manchester ElementaryManchester2.8 mi

Manchester Valley HighManchester3.1 mi

North Carroll MiddleHampstead3.6 mi

Hampstead ElementaryHampstead6.3 mi

Source: National Center for Education Statistics, EDGE public school locations 2024–25

Nearby ZIP codes.

ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas, which closely match the postal ZIP codes used for addresses.

21074 21158 21157 Carroll County Maryland