21770 Zip Code

Below you will find a comprehensive overview of the statistics and characteristics of the 21770 zip code. These include population demographics, economic characteristics, education data, occupation information, housing characteristics, and more.

Key Information:
StateMaryland
CityMonrovia
Time ZoneAmerica/New_York
Geo Location39.35175, -77.25681
Population7291
Size28.594 square miles
Median Family Income$161449.00
Median Home Value$498100.00

Population & Demographics

The following information lists the population statistics and breakdown for the 21770 zip code. The total population is 7291, of which, 3691 are male and 3600 are female. With a total area of 28.594 square miles, the population density is 192.8 people per square mile. The median age of the population is 41.6 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
20115932
20125923
20135645
20145457
20155307
20165187
20175021
20185453
20195513
20206145
20217291

Age BracketNumber of PeoplePercentage of Population
Under 5 years old 2894%
Age 5-95527.6%
Age 10-144145.7%
Age 15-195147%
Age 20-244716.5
Age 25-292633.6%
Age 30-342974.1%
Age 35-396018.2%
Age 40-44686 9.4%
Age 45-493865.3%
Age 50-545006.9%
Age 55-594846.6%
Age 60-644756.5%
Age 65-6974610.2%
Age 70-743544.9%
Age 75-791191.6%
Age 80-84400.5%
Age 85 and over1001.4%


Languages Spoken (of those 5 years of age and older) :
  • Speaks Language other than English: 8.5 %
  • Speaks Spanish: 3.2 %
  • Speaks Other Indo-European Language: 1.3 %
  • Speaks Pacific Island Languages: 3.5 %
  • Speak Other Languages: 0.5 %
Marital Status: 
  • Currently Married: 69.1 %
  • Divorced: 5.1 %
  • Separated (not divorced): 0 %
  • Never Married: 22.9 %

Income & Economic Characteristics

The median inflation-adjusted family income in the 21770 zip code is $161449. This is 131.51% greater than the national average. This income places 0.1% of the population below the poverty line. The average retirement income for individuals in this zip code (for those that have it) is $54011. 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 – $24,999.000
$25,000.00 – $34,999.006
$35,000.00 – $49,999.0030
$50,000.00 – $74,999.00146
$75,000.00 – $99,999.00141
$100,000.00 – $149,999.00431
$150,000.00 – $199,999,00581
$200,000.00 +618

YearMedian Family Income ($ USD)
2011120625
2012118500
2013115625
2014123963
2015129917
2016132171
2017132222
2018141694
2019143780
2020150494
2021161449

Income Source# of Households
Wage or Salary1928
Self Employment405
Social Security761
Dividends, Interest, or Rental872
Retirement751
Other325

Total Insured & Uninsured Individuals: 
  • Families Insure: 7132
  • Families Uninsured: 112
Total Individuals with and w/o retirement income:   
  • Yes retirement income: 751
  • No retirement income: 1469

Education

In the 21770 zip code, 98.3% of individuals over 25 years old have a high school degree or higher, and 56% have a bachelors degree or higher. Additionally, 18.2% of individuals 3 years and older are in private school, and 81.8% are in public school. The data below outline the education level breakdown, degree field breakdown, and more.




Occupation and Work Characteristics

In the 21770 zip, there are an estimated 3913 people in the labor force, of which, 3733 are employed, and 133 are unemployed. There are a total of 47 people in the armed forces. The average commute time for this zip code is 35.7 minutes. Of the total people that work, 770 worked from home and 3696 commuted. The average number of hours worked is 37.6. Below you’ll find additional information on occupation distribution, industry breakdown, commuting characteristics and workplace statistics.

Occupation# of Individual
Management, Business, Science, and Arts2102
Services449
Sales and Office739
Construction and Maintenance:285
Transportation and Material Moving158





Housing

The median home value for the 21770 zip code is 498100. There is an estimated  2220 number of occupied housing units, the median gross rent in is $2065 per month, and the average monthly housing costs are estimated to be $2352. Below you’ll find additional breakdowns of home values, rents, home build years, and more.

Home Value (USD)Number of Homes
Less than $50,0005
$50,000 – $99,00014
$100,000 – $149,9990
$150,000 – $199,9990
$200,000 – $299,999170
$300,000 – $499,999902
$500,000 – $999,9991050
$1,000,000+22

Home Year BuiltNumber of Homes
2020 or Later46
2010 – 2019525
2000 – 2009124
1980 – 1999694
1960 – 1979755
1940 – 19598
1939 or earlier68

The median number of rooms in all housing units is 9.0+ rooms.
Monthly Rent ($ USD)Number of Units
Less than $5000
$500 – $9990
$1,000 – $1,49917
$1,500 – $1,9990
$2,000 – $2,49923
$2,499 – $2,9990
$3,000 + 0

Monthly Housing Costs ($)Number of Households
Less than 3005
300-499107
500-799200
800-99997
1000-1499145
1500-1999176
2000-2499528
2500-2999400
3000+545

Monthly Housing Cost as a % of Monthly IncomeNumber of Households
Less than 20%979
20%-24.9%389
25%-29.9%171
30%-34.9%71
35+%208



# of VehiclesHouseholds
None26
1154
21019
3+1021
Home Heating Characteristics: 
  • Utility Gas: 25.5 %
  • Bottle Tank or LP Gas: 3.8 %
  • Electricity: 61 %
  • Oil or Kerosene etc: 7.3 %
  • Coal or Coke: 0 %
  • All Other: 2.5 %

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