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21791 ZIP Code

ZIP Code: 21791 Union Bridge

Extra Details of ZIP Code 21791

ZIP Code 21791
Zip Code Type Standard
State Maryland - MD
Official Zip Code Name Union Bridge
Primary County Carroll
Area Code (s) 410
Racial Majority White 91.8%
Elevation Range 456 - 564 ft.

Data: State Statistics Office | Updated on: May 03, 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

5,080

Unemployment Rate
1.8%
Poverty Rate
8.5%
Non-Citizens
0.6%

Location of Zip Code 21791

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

Gender & Age Statistics

Gender

  • Male
    51%
  • Female
    49%

Age

  • <10 years
    10%
  • 10-17 years
    8%
  • 18-34 years
    22%
  • 35-64 years
    39%
  • 65+ years
    22%

21791 Demographics

Racial Diversity

  • White
    93%
  • African American
    1%
  • Hispanic
    2%
  • American Indian or Alaska native
    0%
  • Asian & Other race
    2%

Education Levels

  • Master's degree or above
    10%
  • Bachelor's degree
    16%
  • Some college or associate degree
    26%
  • High school diploma or vocational degree
    39%
  • Less than high school diploma
    9%

21791 Income

Median Household Income

$89,335

National $64,994

Household Income Brackets

  • <$30k
    14%
  • $30-$44k
    11%
  • $45-$84k
    21%
  • $85-$149k
    37%
  • $150k+
    18%

Median Individual Income

$40,801

National $32,197

Individual Income Brackets

  • <$20k
    24%
  • $20-$34k
    21%
  • $35-$74k
    31%
  • $75k+
    24%

Online Business Directory

Whether you're looking for hotels, hairdressers, doctors or lawyers in Union Bridge, 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 American Trades Schools
6901 Security Boulevard, Baltimore, 21244

SALVAGEDATA Recovery Services
12978 Garrett Hwy 200, Oakland, 21550

Maryland Home Buyers
2945 Emmorton Rd., Abingdon, 21009

City To City Flat Rate Movers
5450 Addison Rd, Fairmount Heights, 20743

Fitness Machine Technicians
, Lutherville, 21093

Security Camera Installation
12109 Village Square Terrace, apt 302, North Bethesda, 20852

Teknika Kitchens and Baths
335 High Street, Unit C, Chestertown, 21620

Starr Dumpsters
1282 Smallwood Drive West Suite: 323,, Waldorf, 20603

Schools Serving Union Bridge

Francis Scott Key Sr. High
3825 Bark Hill Rd Union Bridge, MD 21791

Elmer A. Wolfe Elementary
119 N Main St Union Bridge, MD 21791

Library Union Bridge

Museum Union Bridge

Western Maryland Railway Historical Society
Po Box 395 Union Bridge, MD 21791-0395

Hospital Union Bridge

University Union Bridge