20851 Zip Code Population and Demographics

In this article, we'll explore the population statistics for the zip code 20851, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

20851 is a zip code in Montgomery County, Maryland, which covers District 4, with a total population of 14,840 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 20851 zip code. The most basic data is the total population, which is the total number of people living in 20851.

The estimated population of people living in 20851 is 14,840, with a median age of 37.8.

We can look back at data from previous years to see how the population in the 20851 area has changed over the last 5 years.

Year Population Change 5-Year Change
2021
14,840
+2.21%
-2.27%
2020
14,519
 -6.26% -
2019
15,489
+2.54%
-
2018
15,106
 -0.51% -
2017
15,184
 - -

Population of 20851 by Race and Ethnicity

How much has the race and ethnicity of the population in the 20851 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
30.8%
33.1%
 -6.95%
Black/African American
12%
8.7%
 +37.93%
Native
0%
0%
 0.00%
Hispanic
38.8%
38.9%
 -0.26%
Asian
15.2%
15.4%
 -1.30%
Hawaiian/Pacific Islander
0%
0%
 0.00%
Two Or More Races
3.1%
3.4%
 -8.82%
Other
0.1%
0.5%
 -80.00%

This data can be very important for anybody studying the 20851 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 20851 by Age and Gender

We can also monitor the change of the age and gender in the 20851 zip code to track track trends in the population over time.

We can see how the population in 20851 has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 37.8 -0.26% 35.3 -1.67% 40.1 +0.5%
2020 37.9 +8.91% 35.9 +5.59% 39.9 +12.08%
2019 34.8 +1.16% 34 +4.94% 35.6 -2.73%
2018 34.4 -0.86% 32.4 -0.31% 36.6 -1.88%
2017 34.7 - 32.5 - 37.3 -

The median age of the 20851 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 20851 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 1,147 +10.82% 1,085 -63.92% 1,179 519
10 to 19 1,123 -37.65% 780 +29.79% 748 986
20 to 29 1,165 -2.75% 871 -7.91% 1,077 790
30 to 39 1,372 -10.49% 1,206 +7.53% 1,223 1,292
40 to 49 1,029 +16.07% 1,058 -26.74% 1,182 791
50 to 59 882 +3.87% 1,109 0.35% 883 1,100
60 to 69 559 +47.1% 876 +35.37% 870 1,102
70+ 411 +20.3% 511 +17.22% 498 600

Median Household Income

The latest median household income for the 20851 zip code is $97,318.00.

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 20851.

  • Under 25
    $0.00
  • 25 to 44
    $83,582.00
  • 45 to 64
    $118,628.00
  • 65 and over
    $81,364.00

Average Household Income

Whenever we ask what is the average household income in the 20851 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 20851, 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 20851 is currently $122,946.00.

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.

13.66% of households in 20851 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 20851 against other zip codes.

  • Less than $24,999
    6.56%
  • $25,000 to $49,999
    22.33%
  • $50,000 to $74,999
    12.33%
  • $75,000 to $99,999
    9.15%
  • $100,000 to $149,999
    21.52%
  • $150,000 to $199,999
    14.45%
  • $200,000 or more
    13.66%

Per Capita Income

The per capita income in 20851 is $43,547.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of 20851 by the total population of 20851.

This is different from the average or mean income because it includes and accounts for all people living in the 20851 area, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in 20851 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
    22.29%
  • Bachelor's degree
    33.75%
  • Some college or associate's degree
    9.19%
  • High school diploma or equivalent
    28.99%
  • Less than high school diploma
    5.78%

Employment

Employment rates are all based around the total population in 20851 that are over the age of 16.

Currently, the total population of the 20851 zip over the age of 16 is 12,114.

Of those people, a total of 76.40% 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 20851 is 73.50%.

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 20851 zip code.

Age Population Participation Unemployment Rate
16 to 19 years 706 49.90% 22.70%
20 to 24 years 767 83.20% 13.00%
25 to 29 years 1,100 76.40% 5.80%
30 to 34 years 1,531 92.70% 1.00%
35 to 44 years 2,037 91.00% 1.60%
45 to 54 years 1,974 93.90% 1.60%
55 to 59 years 929 86.70% 0.00%
60 to 64 years 1,048 72.40% 3.30%
65 to 74 years 1,425 46.40% 3.80%
75 years and over 597 12.60% 0.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in 20851. 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 5,024 73.20% 5.20%
Black or African American 1,592 78.40% 4.00%
American Indian and Alaska Native 116 65.50% 0.00%
Asian 2,025 71.90% 0.60%
Native Hawaiian and Other Pacific Islander 0 0.00% 0.00%
Other 2,064 80.90% 3.30%
Two or more races 1,293 87.40% 2.50%
Hispanic or Latino 4,064 84.70% 2.50%
Not Hispanic or Latino 4,241 70.70% 5.30%

Occupations

In this section we can look at the most common occupations for people living in the 20851 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 20851 is 8,905, with median earnings of $42,675.00.

Women in 20851 are earning approximately 85.00% of the men's earnings.

Population Earnings
Total 8,905 $42,675.00
Male 4,716 $44,029.00
Female 4,189 $37,407.00

Occupations by Category

In the table below, we can break down the population and earnings for 20851 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 683 $60,795.00
Business and Financial 653 $108,004.00
Computer and Mathematical 556 $104,531.00
Architecture and Engineering 212 $99,265.00
Life, Physical, and Social Science 310 $61,087.00
Community and Social Service 135 $78,185.00
Legal 114 $131,250.00
Educational and Library 448 $41,731.00
Arts, Design, Entertainment, Sports, and Media 269 $62,241.00
Healthcare Practitioners 386 $58,702.00
Healthcare Support 85 $29,911.00
Firefighters and Protective Service 101 $80,083.00
Law Enforcement 18 $0.00
Food Preparation and Serving 580 $16,071.00
Building and Grounds Cleaning 800 $24,773.00
Personal Care and Service 239 $20,236.00
Sales 914 $40,138.00
Office and Administrative Support 709 $43,531.00
Farming, Fishing, and Forestry 0 $0.00
Construction and Extraction 834 $22,324.00
Installation, Maintenance, and Repair 207 $43,371.00
Production 257 $36,597.00
Transportation and Material Moving 209 $37,128.00

Occupations by Gender

Now we can also look at the occupations by category for 20851 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 20851.

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 335 $57,250.00 348 $60,909.00
Business and Financial 239 $111,827.00 414 $107,328.00
Computer and Mathematical 463 $107,583.00 93 $81,078.00
Architecture and Engineering 149 $110,417.00 63 $74,926.00
Life, Physical, and Social Science 149 $118,750.00 161 $57,981.00
Community and Social Service 35 $0.00 100 $0.00
Legal 6 $0.00 108 $137,586.00
Educational and Library 200 $53,393.00 248 $36,484.00
Arts, Design, Entertainment, Sports, and Media 138 $55,500.00 131 $62,429.00
Healthcare Practitioners 126 $42,250.00 260 $59,712.00
Healthcare Support 29 $0.00 56 $40,658.00
Firefighters and Protective Service 101 $80,083.00 0 $0.00
Law Enforcement 7 $0.00 11 $0.00
Food Preparation and Serving 234 $16,071.00 346 $16,071.00
Building and Grounds Cleaning 220 $43,438.00 580 $9,854.00
Personal Care and Service 50 $7,500.00 189 $21,115.00
Sales 508 $40,757.00 406 $26,711.00
Office and Administrative Support 234 $44,903.00 475 $37,153.00
Farming, Fishing, and Forestry 0 $0.00 0 $0.00
Construction and Extraction 824 $22,373.00 10 $0.00
Installation, Maintenance, and Repair 207 $43,371.00 0 $0.00
Production 144 $72,979.00 113 $21,806.00
Transportation and Material Moving 197 $40,054.00 12 $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 5,168 households in 20851, with an average household size of 2.86 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 3,481 families living in the 20851 zip code with an average family size of 3.29 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 20851:

Married Male Female Nonfamily
Total Households 2,101 457 923 1,687
Average Household Size 3.42 3.79 3.69 1.48
Total Families 2,101 457 923 0
Average Household Size 3.32 3.39 3.15 0

Poverty

Of the 3,481 families living in 20851, 9.00% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in 20851:

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 5,307 housing units in 20851.

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

Total Percentage
Occupied 5,168 97.38%
Vacant 139 2.62%

38.44% of the total 5,307 housing units in 20851 are rental units. This is approximately 2,040 properties.

For owner-occupied housing units, a total of 3,116 are occupied by the owner - or 58.71% of the total.

Rental Rates

The median rent for a property in 20851 is $1,819.00.

In the chart below, we can look at the number of rental properties in 20851 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
    12
  • Less than $500
    0
  • $500 to $999
    23
  • $1,000 to $1,499
    373
  • $1,500 to $1,999
    979
  • $2,000 to $2,499
    293
  • $2,500 to $2,999
    306
  • $3,000 or more
    66

Property Value

The median value of a property in 20851 is $423,100.00.

Just like with rental rates, we can look at the number of properties in 20851 that fall into a particular value range.

  • Less than $50,000
    26
  • $50,000 to $99,999
    20
  • $100,000 to $149,999
    9
  • $150,000 to $199,999
    3
  • $200,000 to $299,999
    119
  • $300,000 to $499,999
    2,381
  • $500,000 to $999,999
    527
  • $1,000,000 or more
    31

Property Age

We can also look at the age of properties in 20851. The chart below shows the number of properties in 20851 that fall into a particular age range.

  • 1939 or earlier
    159
  • 1940 to 1949
    262
  • 1950 to 1959
    2,459
  • 1960 to 1969
    832
  • 1970 to 1979
    338
  • 1980 to 1989
    544
  • 1990 to 1999
    282
  • 2000 to 2009
    278
  • 2010 to 2013
    153
  • 2014 or later
    0

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 20851 that have a particular number of vehicles available.

  • No vehicles available
    455
  • 1 vehicle available
    1,954
  • 2 vehicles available
    1,646
  • 3 or more vehicles available
    1,113

Commuting to Work

In this section, we can also look at how people in 20851 get to work. The chart below shows the number of people in 20851 that commute to work in a particular way.

31.6 minutes is the average travel time to work for people in 20851.

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
    84
  • 5 to 9 minutes
    432
  • 10 to 14 minutes
    691
  • 15 to 19 minutes
    881
  • 20 to 24 minutes
    1,184
  • 25 to 29 minutes
    445
  • 30 to 34 minutes
    1,039
  • 35 to 39 minutes
    323
  • 40 to 44 minutes
    284
  • 45 to 59 minutes
    943
  • 60 to 89 minutes
    878
  • 90 or more minutes
    270

Summary

We've covered a LOT of demographic and population data for 20851 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 20851

If you want to see how the population and demographics of 20851 compare to other zip codes in Maryland, check out the list of all Maryland zip codes below: