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20689 ZIP Code

ZIP Code: 20689 Sunderland

Extra Details of ZIP Code 20689

ZIP Code 20689
Zip Code Type Standard
State Maryland - MD
Official Zip Code Name Sunderland
Primary County Calvert
Area Code (s) 410
Racial Majority White 74.1%
Elevation Range 85 - 112 ft.

Data: State Statistics Office | Updated on: Jul 11, 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

2,386

Unemployment Rate
0.4%
Poverty Rate
6.1%
Non-Citizens
0.6%

Location of Zip Code 20689

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

Gender & Age Statistics

Gender

  • Male
    52%
  • Female
    48%

Age

  • <10 years
    14%
  • 10-17 years
    12%
  • 18-34 years
    12%
  • 35-64 years
    46%
  • 65+ years
    15%

20689 Demographics

Racial Diversity

  • White
    70%
  • African American
    21%
  • Hispanic
    2%
  • American Indian or Alaska native
    0%
  • Asian & Other race
    1%

Education Levels

  • Master's degree or above
    30%
  • Bachelor's degree
    12%
  • Some college or associate degree
    26%
  • High school diploma or vocational degree
    21%
  • Less than high school diploma
    10%

20689 Income

Median Household Income

$149,500

National $64,994

Household Income Brackets

  • <$30k
    5%
  • $30-$44k
    0%
  • $45-$84k
    17%
  • $85-$149k
    29%
  • $150k+
    49%

Median Individual Income

$52,073

National $32,197

Individual Income Brackets

  • <$20k
    17%
  • $20-$34k
    20%
  • $35-$74k
    38%
  • $75k+
    24%

Online Business Directory

Whether you're looking for hotels, hairdressers, doctors or lawyers in Sunderland, 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!

North Market Pop Shop
241 N. Market St., Frederick, 21701

Turf Medic LLC
13705 Railroad St, Maugansville, MD 21767, USA, Maugansville, 21767

Mold Experts of Rockville
106 N Adams St, Rockville, 20850

iCoderz Solutions – Mobile App & Web Development Company
Woodland, Boulevard,Suite B, Oxon Hill, 20745

Mind in Motion
3617 Chestnut Ave Baltimore, Baltimore, 21211

Capital Teas
1840 Margaret Ave.Suite A, Annapolis, 21401

TradeRiver USA Inc
World Trade Center - Baltimore 401 E. Pratt Street, Suite 2424, Baltimore, 21202

Schools Serving Sunderland

Sunderland Elementary
150 Clyde Jones Rd Sunderland, MD 20689

Library Sunderland

Sunderland Public Library
20 School St. Sunderland, MA 01375

Museum Sunderland

Swampfield Historical Society
Po Box 31 Sunderland, MA 01375-0031

Hospital Sunderland

University Sunderland