21771 Zip Code Income, Population and Demographics

Are you tired of spending 10+ hours searching for demographic and population data for the 21771 zip code? We have all of the data you need by state, county, city, and zip code that will save you many hours of research!

In this article, we'll explore most of the 190+ data points we have for 21771, covering popular demographics statistics like household income, race, age and gender, educational attainment, poverty, housing, and transportation.

21771 is a zip code in Carroll County, Frederick County, Howard County, and Montgomery County, Maryland, which covers District 9, Franklin, District 13, Mount Airy, District 14, Berrett, District 8, Liberty, District 9, New Market, District 18, Woodville, District 19, Linganore, District 4, Lisbon, District 1, and District 12, with a total population of 31,366 people.

The data on this page is from the 2021 American Community Survey (ACS) 5-Year survey from the US Census Bureau.

Median Household Income

According to the latest ACS 5-year survey in 2020, the median household income in 21771 is $131,204.00.

The chart below shows the average household income by age in 21771.

  • Under 25
    $44,318.00
  • 25 to 44
    $144,545.00
  • 45 to 64
    $157,790.00
  • 65 and over
    $88,250.00

Average Household Income

A very commonly asked question is "what is the average household income in the 21771 zip code?". The official term for the average household income is the mean household income. The mean household income is the total income of all households divided by the number of households.

The average (or mean) household income in 21771 is $144,220.00.

26.38% of households in the 21771 zip code are classed as high income households (making $200,000+ per year).

The difference between a median and an average income

The difference between a median and mean household income is that the median income is the middle point of the set of numbers whereas the mean income is an average of all numbers.

Both metrics are important when looking at the income statistics for 21771 but because the median value doesn't depend on other numbers in the dataset, it doesn't change as much when some of the values are extremely low or extremely high.

Household Income Tiers for 21771

We can also look at the household income tiers. This lets you see how many households fall into each of the earnings brackets and what percentage that bracket is of the total number of households.

The chart below shows the household income brackets to see which age groups have the highest median income. The actual data is more granular than these brackets, but we've simplified them into bigger categories to make reviewing the data for the 21771 zip code easier to view.

You can purchase the raw data above, which will have the full income tiers with smaller jumps in household income.

  • Less than $24,999
    6.02%
  • $25,000 to $49,999
    7.71%
  • $50,000 to $74,999
    10.35%
  • $75,000 to $99,999
    8.89%
  • $100,000 to $149,999
    23.42%
  • $150,000 to $199,999
    17.24%
  • $200,000 or more
    26.38%

Per Capita Income

The per capita income is the average income of all people in the 21771 zip code. This is calculated by dividing the total income of all people in 21771 by the total number of people in 21771.

It differs from the average or mean household income because it includes all people in 21771 and not just the people who earn an income (i.e. children, retirees, unemployed, etc.).

The per capita income in the 21771 zip code is $48,404.00.

Population in 21771 by Race and Ethnicity

The total population in 21771 is currently 31,366 people.

The race and ethnicity of the population in 21771 can be very important for social research, economics, and marketing to a multi-culturial society.

Whether you want to target products or services to a particular race or ethnicity, or provide housing and new businesses to improve areas with a larger ethnic minority population, this data is very valuable for discovering suitable areas.

The chart below breaks down the population and percentage for each race and ethnicity in the 21771 zip code.

  • 86.80% White
    27,560
  • 2.90% Black/African American
    912
  • 0.00% Native
    15
  • 6.60% Hispanic
    2,099
  • 1.70% Asian
    548
  • 0.00% Hawaiian/Pacific Islander
    13
  • 1.90% Two or more races
    600
  • 0.00% Other
    8

Population of 21771 by Age and Gender

Another very important demographics statistic for the 21771 zip code is the age and gender of the population. The age and gender of the population can be used to track trends in population growth or decline, and for businesses, the data can be used to identify people important to you and your business need.

In the table below, we show age groups at a 10 year granularity for ease of use. The raw data, which can be purchased above, includes age and gender at a 5 year granularity.

Age Group Male Female
0 to 9 Years 2,261 2,268
10 to 19 Years 2,378 1,573
20 to 29 Years 1,351 1,763
30 to 39 Years 1,735 1,792
40 to 49 Years 2,042 2,306
50 to 59 Years 2,892 2,729
60 to 69 Years 1,890 1,884
70 Years and over 1,324 1,567

Education Levels

Educational attainment is a very useful statistic that can give insights into other data such as the average household income, unemployment levels, and literacy.

What this means is that it is likely for areas that have higher levels of education to have higher average household incomes, lower unemployment rates, and higher literacy rates.

The chart below shows the educational attainment of the population in the 21771 zip code.

  • Master's degree or higher
    20.02%
  • Bachelor's degree
    36.98%
  • Some college or associate's degree
    9.07%
  • High school diploma or equivalent
    32.63%
  • Less than high school diploma
    1.30%

Unemployment Rates

The unemployment rate is the percentage of the population that is actively looking for work but is unable to find a job. The unemployment rate is a very important statistic for 21771 because it can show how many people are actively looking for work and how many people are unable to find a job.

Lower levels of unemployment is generally seen as a positive sign for the economy. It also makes the government in 21771 look good because it shows that they are doing a good job of creating jobs, working to capacity, being efficient, and keeping the economy strong.

The unemployment rate is calculated using the total population in the 21771 zip code that are over the age of 16.

The current population in 21771 that are over the age of 16 is 25,054 people.

The unemployment rate in 21771 is 28.60%, which means 7,172 people are unemployed.

Median Age in 21771

The median age is an interesting metric because it gives us an idea of the age distribution of people in the 21771 zip code. You know when you see a median age that it is the age where half of the population is older and half is younger than it.

For demographic studies, this can be used to infer and compare date to things such as birth rates, the age of parents, and so on.

An increasing median age can be a sign of an aging population, which can be a sign of a declining population. This is because older people tend to have fewer children and die more often than younger people.

The median age in 21771 is 41.7 years old.

We can also look at the median age by gender to compare the see how each group compares to the total median age:

Median age by gender in 21771

41.7

Total

41.1

Male

43

Female

Households and Families

There are a total of 10,602 households in 21771, and the average household size is 2.98 people.

For families, the total number is 8,617, and the average family size is 3.29 people.

1.60% of those families in the 21771 zip code are living below the poverty line.

The table below shows the poverty thresholds for 21771 in 2022.

Household Size Poverty Threshold
1 Person $13,590.00
2 People $18,310.00
3 People $23,030.00
4 People $27,750.00
5 People $32,470.00
6 People $37,190.00
7 People $41,910.00
8 People $46,630.00

Please note that the poverty thresholds shown above are from 2022, while the latest demographics data we have is from 2020.

Households and Families by Marital Status

There are four types of household and family, as defined by the Census Bureau:

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

In the table below, you can see the total households and families in the 21771 zip code for each type, as well as the average sizes.

Married Male Female Nonfamily
Total Households 7,566 342 709 1,985
Average Household Size 3.36 3.1 3.55 1.27
Total Families 7,566 342 709 0
Average Household Size 3.3 2.75 3.38 0

Housing Data in 21771

There are total of 11,109 housing units in the 21771 zip code. Of those units, 10,602 (95.44%) are occupied, and 507 (4.56%) are vacant.

Rental Rates

Of the 11,109 housing units in 21771, 714 (6.43%) are occupied by renters. The median rent paid by renters is $1,516.00.

Owner occupied housing units make up the remaining 87.87% of housing units, with 9,762 housing units in total.

The table below breaks down how much rent is paid by renters in the 21771 zip code.

  • No rent paid
    126
  • Less than $500
    9
  • $500 to $999
    80
  • $1,000 to $1,499
    262
  • $1,500 to $1,999
    185
  • $2,000 to $2,499
    172
  • $2,500 to $2,999
    0
  • $3,000 or more
    6

Property Values

The median value of a property in 21771 is $434,200.00.

The table below breaks down the range of valuations for all properties in 21771.

  • Less than $50,000
    206
  • $50,000 to $99,999
    63
  • $100,000 to $149,999
    20
  • $150,000 to $199,999
    95
  • $200,000 to $299,999
    1,219
  • $300,000 to $499,999
    4,768
  • $500,000 to $999,999
    3,293
  • $1,000,000 or more
    98

Property Age

We can also look at the number of properties built in a given year to see the spread of property age in the 21771 zip code.

  • 1939 or earlier
    762
  • 1940 to 1949
    201
  • 1950 to 1959
    217
  • 1960 to 1969
    670
  • 1970 to 1979
    2,052
  • 1980 to 1989
    2,286
  • 1990 to 1999
    2,449
  • 2000 to 2009
    2,051
  • 2010 to 2013
    399
  • 2014 or later
    22

Vehicles Available per Household

Finally, we have data on how many vehicles each household in 21771 has. The table below breaks down the number of vehicles available per household.

  • No vehicles available
    231
  • 1 vehicle available
    1,377
  • 2 vehicles available
    4,449
  • 3 or more vehicles available
    4,545

Commuting to Work in 21771

The time and means of commuting to work are useful metrics to look at because they can be correlated against other data such as income and education level.

Does a longer commuting time indicate a higher average income? If so, has the huge increase in home working during the pandemic changed this?

Using these metrics, we can get a better understanding of the demographics of the 21771 zip code, how they commute, and how that correlates to other data points.

The average travel time is 36.3 minutes, and the chart below covers the range of travel times across the population of 21771.

  • Less than 5 minutes
    161
  • 5 to 9 minutes
    1,487
  • 10 to 14 minutes
    901
  • 15 to 19 minutes
    1,006
  • 20 to 24 minutes
    1,203
  • 25 to 29 minutes
    905
  • 30 to 34 minutes
    1,650
  • 35 to 39 minutes
    718
  • 40 to 44 minutes
    962
  • 45 to 59 minutes
    2,806
  • 60 to 89 minutes
    2,229
  • 90 or more minutes
    588

We can also look at the means of transport in 21771 to see which modes of transport people are using to commute to work.

  • Drove alone
    13,437
  • Carpooled
    970
  • Public transportation
    74
  • Walked
    88
  • Other means
    47
  • Worked from home
    2,498

Conclusion

Hopefully this article has given you the demographics data you were looking for in the 21771 zip code.

If you need more demographics data, or you need the data listed above in spreadsheet form with more granular grouping, head back to the top of this page where you can purchase the complete demographics data for 21771.

Link To or Reference This Page

We spent a lot of time downloading, cleaning, merging, and formatting the data that is shown on the site.

If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

  • "21771 Zip Code Income, Population and Demographics". NameCensus.com. Accessed on February 2, 2023. https://namecensus.com/demographics/maryland/21771/.

  • "21771 Zip Code Income, Population and Demographics". NameCensus.com, https://namecensus.com/demographics/maryland/21771/. Accessed 2 February, 2023

  • 21771 Zip Code Income, Population and Demographics. NameCensus.com. Retrieved from https://namecensus.com/demographics/maryland/21771/.