21120 Zip Code Population and Demographics

In this article, we'll explore the population statistics for the zip code 21120, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

21120 is a zip code in Baltimore County, Maryland, which covers District 5, District 6, and District 7, with a total population of 7,243 people.

We are using the latest American Community Survey (ACS) 5-Year survey data from the US Census Bureau, which is accurate up to 2021.

Table of Contents

Population

There is a lot of data that lets us see how many people live in the 21120 zip code. The most basic data is the total population, which is the total number of people living in 21120.

The estimated population of people living in 21120 is 7,243, with a median age of 43.7.

We can look back at data from previous years to see how the population in the 21120 area has changed over the last 5 years.

Year Population Change 5-Year Change
2021
7,243
+6.91%
-0.19%
2020
6,775
 -4.51% -
2019
7,095
 -1.65% -
2018
7,214
 -0.59% -
2017
7,257
 - -

Population of 21120 by Race and Ethnicity

How much has the race and ethnicity of the population in the 21120 zip code changed? The US Census Bureau gives us a few defined types that the population is broken down into.

Let's look at the total numbers and also the change over the last 5 years.

Race 2021 2017 Change
White
86.2%
91.8%
 -6.10%
Black/African American
2.4%
1.6%
 +50.00%
Native
0%
0%
 0.00%
Hispanic
3.7%
1.5%
 +146.67%
Asian
3.2%
3%
 +6.67%
Hawaiian/Pacific Islander
0%
0%
 0.00%
Two Or More Races
3.3%
2.1%
 +57.14%
Other
1.1%
0%
 0.00%

This data can be very important for anybody studying the 21120 zip for a number of reasons, including social and economic research, planning and development, and marketing to a multi-cultural population.

Note that the Native group includes both Native American and Alaskan Native people.

Population of 21120 by Age and Gender

We can also monitor the change of the age and gender in the 21120 zip code to track track trends in the population over time.

We can see how the population in 21120 has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 43.7 +3.8% 43 +6.7% 45.5 +6.31%
2020 42.1 -10.23% 40.3 -7.36% 42.8 -10.27%
2019 46.9 -1.05% 43.5 -7.45% 47.7 +0.63%
2018 47.4 +0.85% 47 -0.63% 47.4 +1.28%
2017 47 - 47.3 - 46.8 -

The median age of the 21120 zip gives you an idea of the age distribution, with half of the population being older than the median age and half being younger.

This can then be used to infer and compare against birth rates, parent ages, and more metrics to understand the population. For example, an increasing median age indicates an aging population in the 21120 area, which can be a sign of a declining population in terms of birth rates and workforce participation.

Age 2021 2017
(Years) Male Female Male Female
0 to 9 399 +30.07% 387 +6.3% 498 398
10 to 19 581 +16.79% 465 +27.88% 672 597
20 to 29 227 -37.83% 292 -54.3% 140 153
30 to 39 294 +21.62% 372 +19.14% 352 427
40 to 49 465 +8.71% 515 -9.05% 502 469
50 to 59 832 -34.88% 641 0.71% 576 628
60 to 69 498 +46.92% 517 +15.31% 685 573
70+ 366 -10.38% 406 -33.47% 303 270

Median Household Income

The latest median household income for the 21120 zip code is $137,761.00.

In simple terms, the median income is the middle income of a group of people. Half of the people in the group make more than the median income, and half make less.

The median income is a good indicator of the overall income of a group of people, and can be used to compare against other metrics such as the average income, per capita income, and more.

Median Income by Age

We can also look at the median income by age to see how the median income varies by age, and how it compares to the overall median income for 21120.

  • Under 25
    $0.00
  • 25 to 44
    $183,173.00
  • 45 to 64
    $138,972.00
  • 65 and over
    $92,875.00

Average Household Income

Whenever we ask what is the average household income in the 21120 zip code, we are actually talking about the mean household income.

This is calculated by adding up all the incomes of all the households in 21120, and then dividing that number by the total number of households.

This is a good way to get a general idea of the average income of a group of people, but it can be skewed by a very high or very low incomes.

The average household income of 21120 is currently $177,350.00.

In terms of accurately summarizing income at a geographic level, the median income is a better metric than the average income because it isn't affected by a small number of very high or very low incomes.

If you had an area where the average income was greater than the median, it can mean that there is significant income inequality, with income being concentrated in a small number of wealthy households.

26.29% of households in 21120 are classed as high income households (making $200,000+ per year).

Household Income Tiers

The US Census Bureau divides households into income tiers based on the median income for the area. This is a good way to compare the income of 21120 against other zip codes.

  • Less than $24,999
    3.13%
  • $25,000 to $49,999
    5.27%
  • $50,000 to $74,999
    7.17%
  • $75,000 to $99,999
    12.94%
  • $100,000 to $149,999
    28.80%
  • $150,000 to $199,999
    16.40%
  • $200,000 or more
    26.29%

Per Capita Income

The per capita income in 21120 is $57,687.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of 21120 by the total population of 21120.

This is different from the average or mean income because it includes and accounts for all people living in the 21120 area, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in 21120 to see how many people have a high school degree, a bachelor's degree, or a graduate degree.

Educational attainment is a good indicator of the overall education level of a population, and can be used to compare against other metrics such as the average income, per capita income, and more to see how education levels affect income, unemployment rates, and more.

  • Master's degree or higher
    25.47%
  • Bachelor's degree
    45.61%
  • Some college or associate's degree
    8.87%
  • High school diploma or equivalent
    19.76%
  • Less than high school diploma
    0.30%

Employment

Employment rates are all based around the total population in 21120 that are over the age of 16.

Currently, the total population of the 21120 zip over the age of 16 is 5,440.

Of those people, a total of 68.70% are working or actively looking for work. This is called the labor force participation rate.

The participation rate is a useful market measure because it shows the relative amount of labor resources available to the economy.

The employment to total population rate in 21120 is 66.00%.

Employment by Age

We can look at the employment rates by age to see how it compares to the overall employment rate. Here's how that breaks down for the 21120 zip code.

Age Population Participation Unemployment Rate
16 to 19 years 362 48.90% 14.10%
20 to 24 years 136 83.80% 24.60%
25 to 29 years 157 100.00% 0.00%
30 to 34 years 356 82.60% 0.00%
35 to 44 years 862 90.70% 0.00%
45 to 54 years 1,090 85.50% 1.70%
55 to 59 years 646 78.20% 7.50%
60 to 64 years 671 82.00% 0.70%
65 to 74 years 808 23.90% 5.70%
75 years and over 352 8.80% 67.70%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in 21120. The table below shows the rates for each of the ethnicity groups types defined by the US Census Bureau (which we mentioned earlier in this article).

Age Population Participation Unemployment Rate
White 4,873 68.00% 4.30%
Black or African American 171 63.20% 0.00%
American Indian and Alaska Native 0 0.00% 0.00%
Asian 133 88.70% 0.00%
Native Hawaiian and Other Pacific Islander 0 0.00% 0.00%
Other 69 52.20% 0.00%
Two or more races 194 82.00% 0.00%
Hispanic or Latino 150 44.00% 0.00%
Not Hispanic or Latino 4,812 68.10% 4.40%

Occupations

In this section we can look at the most common occupations for people living in the 21120 area as well as the gender breakdown and earnings of them.

The total population of civilian employees that are 16 years old or older in 21120 is 3,592, with median earnings of $71,250.00.

Women in 21120 are earning approximately 78.80% of the men's earnings.

Population Earnings
Total 3,592 $71,250.00
Male 1,924 $79,342.00
Female 1,668 $62,500.00

Occupations by Category

In the table below, we can break down the population and earnings for 21120 even further by occupation. The list of occupation categories below will show you how many people are employed in each category and the median earnings of each profession.

Occupation Employed Earnings
Management 593 $114,205.00
Business and Financial 359 $112,813.00
Computer and Mathematical 164 $137,636.00
Architecture and Engineering 91 $109,141.00
Life, Physical, and Social Science 52 $63,000.00
Community and Social Service 49 $76,484.00
Legal 15 $0.00
Educational and Library 320 $77,500.00
Arts, Design, Entertainment, Sports, and Media 94 $15,667.00
Healthcare Practitioners 273 $84,338.00
Healthcare Support 46 $43,750.00
Firefighters and Protective Service 13 $0.00
Law Enforcement 26 $0.00
Food Preparation and Serving 128 $7,105.00
Building and Grounds Cleaning 40 $35,938.00
Personal Care and Service 161 $19,213.00
Sales 355 $101,060.00
Office and Administrative Support 333 $39,861.00
Farming, Fishing, and Forestry 0 $0.00
Construction and Extraction 119 $68,047.00
Installation, Maintenance, and Repair 112 $58,600.00
Production 86 $39,405.00
Transportation and Material Moving 118 $62,813.00

Occupations by Gender

Now we can also look at the occupations by category for 21120 when it is broken down by male and female.

This lets us see how many male and females work in each occupation, the median earnings, and the male to female ratio of earnings for 21120.

That last metric is important because it can be used to look at the gender pay gap between men and women.

Occupation Male Female
Population Earnings Population Earnings
Management 410 $121,111.00 183 $64,205.00
Business and Financial 135 $118,917.00 224 $111,406.00
Computer and Mathematical 76 $126,667.00 88 $138,000.00
Architecture and Engineering 68 $116,875.00 23 $0.00
Life, Physical, and Social Science 15 $0.00 37 $53,984.00
Community and Social Service 33 $80,208.00 16 $0.00
Legal 6 $0.00 9 $0.00
Educational and Library 25 $0.00 295 $78,625.00
Arts, Design, Entertainment, Sports, and Media 59 $9,669.00 35 $16,417.00
Healthcare Practitioners 54 $146,406.00 219 $78,438.00
Healthcare Support 23 $0.00 23 $0.00
Firefighters and Protective Service 13 $0.00 0 $0.00
Law Enforcement 26 $0.00 0 $0.00
Food Preparation and Serving 84 $13,056.00 44 $3,409.00
Building and Grounds Cleaning 22 $0.00 18 $0.00
Personal Care and Service 80 $0.00 81 $18,009.00
Sales 228 $113,750.00 127 $58,542.00
Office and Administrative Support 110 $63,269.00 223 $36,350.00
Farming, Fishing, and Forestry 0 $0.00 0 $0.00
Construction and Extraction 119 $68,047.00 0 $0.00
Installation, Maintenance, and Repair 112 $58,600.00 0 $0.00
Production 86 $39,405.00 0 $0.00
Transportation and Material Moving 95 $64,609.00 23 $0.00

Households and Family Size

A household is defined by the US Census Bureau as a group of people who occupy a housing unit. A housing unit is a house, apartment, mobile home, group of rooms, or single room occupied as separate living quarters.

There are currently 2,427 households in 21120, with an average household size of 2.98 people.

A family is defined as a group of two or more people related by birth, marriage, or adoption who live together in the same household.

There are 1,999 families living in the 21120 zip code with an average family size of 3.32 people.

Households by Marital Status

The four categories of household by marital status are:

  • Married-couple family
  • Male householder with no spouse present
  • Female household with no spouse present
  • Nonfamily household

The table below shows the total number of households and families, with the average sizes of each, that live in 21120:

Married Male Female Nonfamily
Total Households 1,858 45 96 428
Average Household Size 3.34 2.98 3.42 1.31
Total Families 1,858 45 96 0
Average Household Size 3.34 2.62 3.19 0

Poverty

Of the 1,999 families living in 21120, 0.30% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in 21120:

Household Size Poverty Threshold
1 Person $14,580.00
2 People $19,720.00
3 People $24,860.00
4 People $30,000.00
5 People $35,140.00
6 People $40,280.00
7 People $45,420.00
8 People $50,560.00

Housing

There are 2,570 housing units in 21120.

The table below shows the split between occupied and vacant units:

Total Percentage
Occupied 2,427 94.44%
Vacant 143 5.56%

3.74% of the total 2,570 housing units in 21120 are rental units. This is approximately 96 properties.

For owner-occupied housing units, a total of 2,308 are occupied by the owner - or 89.81% of the total.

Rental Rates

The median rent for a property in 21120 is $1,704.00.

In the chart below, we can look at the number of rental properties in 21120 that fall into a particular rent range. These can then be used to compare with other areas, or to see how they have changed over time.

  • No rent paid
    23
  • Less than $500
    0
  • $500 to $999
    20
  • $1,000 to $1,499
    8
  • $1,500 to $1,999
    49
  • $2,000 to $2,499
    0
  • $2,500 to $2,999
    0
  • $3,000 or more
    19

Property Value

The median value of a property in 21120 is $487,800.00.

Just like with rental rates, we can look at the number of properties in 21120 that fall into a particular value range.

  • Less than $50,000
    9
  • $50,000 to $99,999
    9
  • $100,000 to $149,999
    18
  • $150,000 to $199,999
    18
  • $200,000 to $299,999
    296
  • $300,000 to $499,999
    867
  • $500,000 to $999,999
    992
  • $1,000,000 or more
    99

Property Age

We can also look at the age of properties in 21120. The chart below shows the number of properties in 21120 that fall into a particular age range.

  • 1939 or earlier
    205
  • 1940 to 1949
    46
  • 1950 to 1959
    182
  • 1960 to 1969
    122
  • 1970 to 1979
    351
  • 1980 to 1989
    498
  • 1990 to 1999
    475
  • 2000 to 2009
    503
  • 2010 to 2013
    141
  • 2014 or later
    47

Vehicles per Household

The number of vehicles available per household can be a good indicator of the level of affluence in an area. The chart below shows the number of households in 21120 that have a particular number of vehicles available.

  • No vehicles available
    12
  • 1 vehicle available
    276
  • 2 vehicles available
    1,195
  • 3 or more vehicles available
    944

Commuting to Work

In this section, we can also look at how people in 21120 get to work. The chart below shows the number of people in 21120 that commute to work in a particular way.

37.3 minutes is the average travel time to work for people in 21120.

These commute times can be compared to other date like income and educational levels to see how they relate to each other and if there are any trends in the data that might suggest a correlation.

  • Less than 5 minutes
    15
  • 5 to 9 minutes
    36
  • 10 to 14 minutes
    110
  • 15 to 19 minutes
    244
  • 20 to 24 minutes
    396
  • 25 to 29 minutes
    286
  • 30 to 34 minutes
    556
  • 35 to 39 minutes
    125
  • 40 to 44 minutes
    172
  • 45 to 59 minutes
    602
  • 60 to 89 minutes
    358
  • 90 or more minutes
    87

Summary

We've covered a LOT of demographic and population data for 21120 in this article! Hopefully you have found it very useful in your research of the area.

If you use any of the data found on this page, please consider linking back to USPopulation.org as the source and if you have any feedback or data requests, click here to contact us.

States in 21120

If you want to see how the population and demographics of 21120 compare to other zip codes in Maryland, check out the list of all Maryland zip codes below: