20618 Zip Code Population and Demographics

In this article, we'll explore the population statistics for the zip code 20618, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

20618 is a zip code in St. Mary's County, Maryland, which covers District 4, Chaptico, District 7, and Milestown, with a total population of 941 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 20618 zip code. The most basic data is the total population, which is the total number of people living in 20618.

The estimated population of people living in 20618 is 941, with a median age of 63.3.

We can look back at data from previous years to see how the population in the 20618 area has changed over the last 5 years.

Year Population Change 5-Year Change
2021
941
+134.08%
+140.05%
2020
402
 -0.99% -
2019
406
 -10.57% -
2018
454
+15.82%
-
2017
392
 - -

Population of 20618 by Race and Ethnicity

How much has the race and ethnicity of the population in the 20618 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
46.8%
86.2%
 -45.71%
Black/African American
51.3%
12.8%
 +300.78%
Native
0%
0%
 0.00%
Hispanic
0%
0%
 0.00%
Asian
0.7%
0%
 0.00%
Hawaiian/Pacific Islander
0%
0%
 0.00%
Two Or More Races
1.2%
1%
 +20.00%
Other
0%
0%
 0.00%

This data can be very important for anybody studying the 20618 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 20618 by Age and Gender

We can also monitor the change of the age and gender in the 20618 zip code to track track trends in the population over time.

We can see how the population in 20618 has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 63.3 +10.09% 53.5 +60.18% 70.2 +17.39%
2020 57.5 +2.86% 33.4 -0.6% 59.8 +0.34%
2019 55.9 -0.18% 33.6 -0.88% 59.6 0%
2018 56 +0.36% 33.9 -2.31% 59.6 +1.02%
2017 55.8 - 34.7 - 59 -

The median age of the 20618 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 20618 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 20 -23.06% 10 +75.83% 12 18
10 to 19 4 -12.5% 11 +37.41%
20 to 29 41 +167.1% 46 -52.94% 135 15
30 to 39 24 +32.02% 5 -60% 26 0
40 to 49 13 6
50 to 59 26 +99.25% 49 +136.13% 47 142
60 to 69 25 +224.61% 70 +17.46% 95 76
70+ 32 +285.19% 20 +769.19% 71 273

Median Household Income

The latest median household income for the 20618 zip code is $52,175.00.

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 20618.

  • Under 25
    $0.00
  • 25 to 44
    $0.00
  • 45 to 64
    $117,344.00
  • 65 and over
    $50,986.00

Average Household Income

Whenever we ask what is the average household income in the 20618 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 20618, 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 20618 is currently $78,110.00.

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.

2.31% of households in 20618 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 20618 against other zip codes.

  • Less than $24,999
    9.25%
  • $25,000 to $49,999
    17.48%
  • $50,000 to $74,999
    36.76%
  • $75,000 to $99,999
    10.03%
  • $100,000 to $149,999
    9.77%
  • $150,000 to $199,999
    14.40%
  • $200,000 or more
    2.31%

Per Capita Income

The per capita income in 20618 is $33,813.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of 20618 by the total population of 20618.

This is different from the average or mean income because it includes and accounts for all people living in the 20618 area, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in 20618 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
    2.10%
  • Bachelor's degree
    3.50%
  • Some college or associate's degree
    29.21%
  • High school diploma or equivalent
    65.19%
  • Less than high school diploma
    0.00%

Employment

Employment rates are all based around the total population in 20618 that are over the age of 16.

Currently, the total population of the 20618 zip over the age of 16 is 911.

Of those people, a total of 43.20% 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 20618 is 35.80%.

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 20618 zip code.

Age Population Participation Unemployment Rate
16 to 19 years 12 8.30% 0.00%
20 to 24 years 41 100.00% 0.00%
25 to 29 years 109 100.00% 62.40%
30 to 34 years 26 100.00% 0.00%
35 to 44 years 10 90.00% 0.00%
45 to 54 years 102 98.00% 0.00%
55 to 59 years 96 49.00% 0.00%
60 to 64 years 77 36.40% 0.00%
65 to 74 years 256 12.90% 0.00%
75 years and over 182 0.00% 0.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in 20618. 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 410 55.40% 0.00%
Black or African American 483 33.50% 42.00%
American Indian and Alaska Native 0 0.00% 0.00%
Asian 7 0.00% 0.00%
Native Hawaiian and Other Pacific Islander 0 0.00% 0.00%
Other 0 0.00% 0.00%
Two or more races 11 45.50% 0.00%
Hispanic or Latino 0 0.00% 0.00%
Not Hispanic or Latino 410 55.40% 0.00%

Occupations

In this section we can look at the most common occupations for people living in the 20618 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 20618 is 326, with median earnings of $55,357.00.

Women in 20618 are earning approximately 156.50% of the men's earnings.

Population Earnings
Total 326 $55,357.00
Male 203 $39,896.00
Female 123 $62,452.00

Occupations by Category

In the table below, we can break down the population and earnings for 20618 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 25 $0.00
Business and Financial 18 $0.00
Computer and Mathematical 15 $0.00
Architecture and Engineering 6 $0.00
Life, Physical, and Social Science 5 $0.00
Community and Social Service 0 $0.00
Legal 0 $0.00
Educational and Library 0 $0.00
Arts, Design, Entertainment, Sports, and Media 4 $0.00
Healthcare Practitioners 0 $0.00
Healthcare Support 23 $0.00
Firefighters and Protective Service 5 $0.00
Law Enforcement 0 $0.00
Food Preparation and Serving 26 $0.00
Building and Grounds Cleaning 1 $0.00
Personal Care and Service 44 $2,499.00
Sales 0 $0.00
Office and Administrative Support 13 $0.00
Farming, Fishing, and Forestry 0 $0.00
Construction and Extraction 41 $55,069.00
Installation, Maintenance, and Repair 58 $47,955.00
Production 3 $0.00
Transportation and Material Moving 30 $0.00

Occupations by Gender

Now we can also look at the occupations by category for 20618 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 20618.

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 25 $0.00 0 $0.00
Business and Financial 8 $0.00 10 $0.00
Computer and Mathematical 8 $0.00 7 $0.00
Architecture and Engineering 0 $0.00 6 $0.00
Life, Physical, and Social Science 5 $0.00 0 $0.00
Community and Social Service 0 $0.00 0 $0.00
Legal 0 $0.00 0 $0.00
Educational and Library 0 $0.00 0 $0.00
Arts, Design, Entertainment, Sports, and Media 4 $0.00 0 $0.00
Healthcare Practitioners 0 $0.00 0 $0.00
Healthcare Support 0 $0.00 23 $0.00
Firefighters and Protective Service 5 $0.00 0 $0.00
Law Enforcement 0 $0.00 0 $0.00
Food Preparation and Serving 0 $0.00 26 $0.00
Building and Grounds Cleaning 0 $0.00 1 $0.00
Personal Care and Service 7 $0.00 37 $2,499.00
Sales 0 $0.00 0 $0.00
Office and Administrative Support 0 $0.00 13 $0.00
Farming, Fishing, and Forestry 0 $0.00 0 $0.00
Construction and Extraction 41 $55,069.00 0 $0.00
Installation, Maintenance, and Repair 58 $47,955.00 0 $0.00
Production 3 $0.00 0 $0.00
Transportation and Material Moving 30 $0.00 0 $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 389 households in 20618, with an average household size of 2.35 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 285 families living in the 20618 zip code with an average family size of 2.84 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 20618:

Married Male Female Nonfamily
Total Households 157 9 119 104
Average Household Size 3.46 1.89 2.09 0
Total Families 157 9 119 0
Average Household Size 3.46 1.89 2.09 0

Poverty

Of the 285 families living in 20618, 0.00% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in 20618:

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 665 housing units in 20618.

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

Total Percentage
Occupied 389 58.50%
Vacant 276 41.50%

7.52% of the total 665 housing units in 20618 are rental units. This is approximately 50 properties.

For owner-occupied housing units, a total of 339 are occupied by the owner - or 50.98% of the total.

Rental Rates

The median rent for a property in 20618 is $1,353.00.

In the chart below, we can look at the number of rental properties in 20618 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
    0
  • Less than $500
    0
  • $500 to $999
    0
  • $1,000 to $1,499
    48
  • $1,500 to $1,999
    0
  • $2,000 to $2,499
    2
  • $2,500 to $2,999
    0
  • $3,000 or more
    0

Property Value

The median value of a property in 20618 is $272,900.00.

Just like with rental rates, we can look at the number of properties in 20618 that fall into a particular value range.

  • Less than $50,000
    0
  • $50,000 to $99,999
    26
  • $100,000 to $149,999
    26
  • $150,000 to $199,999
    37
  • $200,000 to $299,999
    163
  • $300,000 to $499,999
    78
  • $500,000 to $999,999
    9
  • $1,000,000 or more
    0

Property Age

We can also look at the age of properties in 20618. The chart below shows the number of properties in 20618 that fall into a particular age range.

  • 1939 or earlier
    61
  • 1940 to 1949
    4
  • 1950 to 1959
    60
  • 1960 to 1969
    148
  • 1970 to 1979
    130
  • 1980 to 1989
    95
  • 1990 to 1999
    98
  • 2000 to 2009
    44
  • 2010 to 2013
    25
  • 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 20618 that have a particular number of vehicles available.

  • No vehicles available
    9
  • 1 vehicle available
    158
  • 2 vehicles available
    53
  • 3 or more vehicles available
    169

Commuting to Work

In this section, we can also look at how people in 20618 get to work. The chart below shows the number of people in 20618 that commute to work in a particular way.

44.9 minutes is the average travel time to work for people in 20618.

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
    1
  • 5 to 9 minutes
    0
  • 10 to 14 minutes
    0
  • 15 to 19 minutes
    10
  • 20 to 24 minutes
    46
  • 25 to 29 minutes
    33
  • 30 to 34 minutes
    80
  • 35 to 39 minutes
    18
  • 40 to 44 minutes
    5
  • 45 to 59 minutes
    36
  • 60 to 89 minutes
    50
  • 90 or more minutes
    40

Summary

We've covered a LOT of demographic and population data for 20618 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 20618

If you want to see how the population and demographics of 20618 compare to other zip codes in Maryland, check out the list of all Maryland zip codes below: