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21687 ZIP Code

ZIP Code: 21687 Ridgely

Extra Details of ZIP Code 21687

ZIP Code 21687
Zip Code Type Unique
State Maryland - MD
Official Zip Code Name Ridgely
Primary County Caroline
Area Code (s) 410
Racial Majority %
Elevation Range

Data: State Statistics Office | Updated on: May 25, 2026

How to write a U.S. envelope?

The first step is to write the recipient address:
First, you need to fill in the recipient's mailing information in the center of the envelope. The first line is also the recipient's name. When writing the recipient's name, pay attention to the title, and write the person's title and name in the middle of the envelope. On the second line, write the recipient's full address, including any associated apartment or suite numbers. The more detailed the better. The third line writes the recipient's city, state, and zip code, this information is the last line of the address.

The second step is to write the reply address:
The return address is three lines, the first line will be the sender's name. The second line writes the sender's detailed address, including the street address, please remember to write the house number. On the third line write your city, state abbr, and zip code.

Finally, don't forget to stick the stamp on the right top corner. Otherwise, the letter will not go into the delivery process.

How to Read Zip Code

Population and Employment

population

Unemployment Rate
Poverty Rate
Non-Citizens

Location of Zip Code 21687

On this map you can see exactly where postcodes are located within Germany.

Gender & Age Statistics

Gender

  • Male
  • Female

Age

  • <10 years
  • 10-17 years
  • 18-34 years
  • 35-64 years
  • 65+ years

21687 Demographics

Racial Diversity

  • White
  • African American
  • Hispanic
  • American Indian or Alaska native
  • Asian & Other race

Education Levels

  • Master's degree or above
  • Bachelor's degree
  • Some college or associate degree
  • High school diploma or vocational degree
  • Less than high school diploma

21687 Income

Median Household Income

National

Household Income Brackets

  • <$30k
  • $30-$44k
  • $45-$84k
  • $85-$149k
  • $150k+

Median Individual Income

National

Individual Income Brackets

  • <$20k
  • $20-$34k
  • $35-$74k
  • $75k+

Online Business Directory

Whether you're looking for hotels, hairdressers, doctors or lawyers in Ridgely, MD. You can find these phone numbers in our phone book. With us, you can easily book a restaurant or hotel in your location. You can also find reputable real estate agents and insurance agents. Everything you need is easily accessible here!

Mosquito Authority – Greater Maryland & DC Metro
19745 Greenside Terrace, Montgomery Village, 20886

London Disability
400 E. Pratt Street Suite 510, Baltimore, MD, 21202

Summer Breeze Farms
20568 Old Gravel, Lexington Park, 20653

Coloco
Maryland, Baltimore, MD, USA, 21836

Bayside Asphalt Sealcoating Services
839 Woods Rd., Pasadena, 21122

Helium Creative Maryland
6 East Eager Street, Baltimore, 21202

Tarika Technologies
5044 Dorsey Hall Dr # 204, Ellicott City, 21042

Beautiful Baths & Kitchens
18817 Briars Ct, Olney, Olney, 20832

Schools Serving Ridgely

Library Ridgely

Ridgely Public Library
134 N. Main Street Ridgely, TN 38080

Museum Ridgely

Adkins Arboretum
Po Box 100 Ridgely, MD 21660-0100

Hospital Ridgely

University Ridgely