20818 Zip Code

Below you will find a comprehensive overview of the statistics and characteristics of the 20818 zip code. These include population demographics, economic characteristics, education data, occupation information, housing characteristics, and more.

Key Information:
StateMaryland
CityCabin John
Time ZoneAmerica/New_York
Geo Location38.97397, -77.16241
Population1934
Size2.64 square miles
Median Family Income$223036.00
Median Home Value$1046100.00

Population & Demographics

The following information lists the population statistics and breakdown for the 20818 zip code. The total population is 1934, of which, 828 are male and 1106 are female. With a total area of 2.64 square miles, the population density is 746.6 people per square mile. The median age of the population is 49.8 years old. Below you’ll find additional information on the population and demographics of this zip code, including age distribution, race distribution, language spoken, and more.

YearPopulation
20112380
20122057
20131967
20141948
20152056
20161783
20172006
20182019
20191971
20202072
20211934

Age BracketNumber of PeoplePercentage of Population
Under 5 years old 371.9%
Age 5-920210.4%
Age 10-141015.2%
Age 15-19954.9%
Age 20-241045.4
Age 25-29703.6%
Age 30-34130.7%
Age 35-391115.7%
Age 40-4491 4.7%
Age 45-491588.2%
Age 50-5420610.7%
Age 55-591889.7%
Age 60-6422411.6%
Age 65-691216.3%
Age 70-74844.3%
Age 75-79341.8%
Age 80-84271.4%
Age 85 and over683.5%


Languages Spoken (of those 5 years of age and older) :
  • Speaks Language other than English: 16.6 %
  • Speaks Spanish: 3.8 %
  • Speaks Other Indo-European Language: 3 %
  • Speaks Pacific Island Languages: 8.4 %
  • Speak Other Languages: 1.4 %
Marital Status: 
  • Currently Married: 68.1 %
  • Divorced: 11.6 %
  • Separated (not divorced): 0 %
  • Never Married: 19.2 %

Income & Economic Characteristics

The median inflation-adjusted family income in the 20818 zip code is $223036. This is 186.74% greater than the national average. This income places 0.9% of the population below the poverty line. The average retirement income for individuals in this zip code (for those that have it) is $68344. Below you can find additional economic characteristics, including income bracket distribution, median income over time, retirement statistics, and more.

Annual Income Bracket ($)Number of Families in Bracket
Less than $10,000.000
$10,000.00 – $14,999.000
$15,000.00 – $24,999.0017
$25,000.00 – $34,999.0019
$35,000.00 – $49,999.0025
$50,000.00 – $74,999.0034
$75,000.00 – $99,999.000
$100,000.00 – $149,999.0063
$150,000.00 – $199,999,0093
$200,000.00 +349

YearMedian Family Income ($ USD)
2011210473
2012188438
2013199375
2014199896
2015201635
2016198929
2017187143
2018190302
2019193846
2020186413
2021223036

Income Source# of Households
Wage or Salary604
Self Employment131
Social Security212
Dividends, Interest, or Rental453
Retirement195
Other81

Total Insured & Uninsured Individuals: 
  • Families Insure: 1919
  • Families Uninsured: 0
Total Individuals with and w/o retirement income:   
  • Yes retirement income: 195
  • No retirement income: 560

Education

In the 20818 zip code, 99.9% of individuals over 25 years old have a high school degree or higher, and 93.7% have a bachelors degree or higher. Additionally, 51.4% of individuals 3 years and older are in private school, and 48.6% are in public school. The data below outline the education level breakdown, degree field breakdown, and more.




Occupation and Work Characteristics

In the 20818 zip, there are an estimated 1163 people in the labor force, of which, 1132 are employed, and 16 are unemployed. There are a total of 15 people in the armed forces. The average commute time for this zip code is 32.2 minutes. Of the total people that work, 314 worked from home and 1145 commuted. The average number of hours worked is 37.8. Below you’ll find additional information on occupation distribution, industry breakdown, commuting characteristics and workplace statistics.

Occupation# of Individual
Management, Business, Science, and Arts1004
Services53
Sales and Office29
Construction and Maintenance:28
Transportation and Material Moving18





Housing

The median home value for the 20818 zip code is 1046100. There is an estimated  755 number of occupied housing units, the median gross rent in is $2797 per month, and the average monthly housing costs are estimated to be $3197. Below you’ll find additional breakdowns of home values, rents, home build years, and more.

Home Value (USD)Number of Homes
Less than $50,0000
$50,000 – $99,0000
$100,000 – $149,9998
$150,000 – $199,9990
$200,000 – $299,99917
$300,000 – $499,99914
$500,000 – $999,999286
$1,000,000+387

Home Year BuiltNumber of Homes
2020 or Later0
2010 – 2019113
2000 – 200922
1980 – 1999209
1960 – 1979151
1940 – 1959192
1939 or earlier68

The median number of rooms in all housing units is 8.2 rooms.
Monthly Rent ($ USD)Number of Units
Less than $5000
$500 – $9990
$1,000 – $1,49912
$1,500 – $1,9990
$2,000 – $2,4990
$2,499 – $2,99916
$3,000 + 15

Monthly Housing Costs ($)Number of Households
Less than 3008
300-4990
500-79917
800-99948
1000-149991
1500-199926
2000-249944
2500-299984
3000+437

Monthly Housing Cost as a % of Monthly IncomeNumber of Households
Less than 20%230
20%-24.9%101
25%-29.9%28
30%-34.9%0
35+%162



# of VehiclesHouseholds
None31
1172
2368
3+184
Home Heating Characteristics: 
  • Utility Gas: 31.4 %
  • Bottle Tank or LP Gas: 9 %
  • Electricity: 47.3 %
  • Oil or Kerosene etc: 12.3 %
  • Coal or Coke: 0 %
  • All Other: 0 %

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All information sourced from official government sources including Census.gov, the IRS, and the Department of Education.