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21792 ZIP Code

ZIP Code: 21792 Unionville

Extra Details of ZIP Code 21792

ZIP Code 21792
Zip Code Type PO Box
State Maryland - MD
Official Zip Code Name Unionville
Primary County Frederick
Area Code (s) 240
Racial Majority NA%
Elevation Range 0-0 Feet

Data: State Statistics Office | Updated on: Jun 27, 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 21792

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

21792 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

21792 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 Unionville, 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!

Shafer, Troxell & Howe Inc
97 Monocacy Blvd. Unit D MD, Frederick, 21701

Government Services Exchange
2401 Sangamore Rd, Bethesda, 20816

Brodsky Renehan Pearlstein & Bouquet Chartered
16061 Comprint Cir, Frederick, 20877

Permit Expediting Services – Maryland
1801 RESEARCH BLVD STE 110, Rockville, 20850

College Scooters
5112 Roanoke Place, College Park, 20740

Albers & Associates
15 E. Main St, Ste 102, Westminster, 21157

Bay Lighting
2146 Priest Bridge Court #13, Crofton, 21114

NovelVox
10411 Motor City Drive, Suite 500, Bethesda, MD 20817, Bethesda, 20817

Schools Serving Unionville

Library Unionville

Columbia Township Library
6456 Center Street Unionville, MI 48767

Museum Unionville

Unionville Museum
15 School St Unionville, CT 06085

Putnam County Historical Society
201 S 16th St Unionville, MO 63565

Hospital Unionville

Putnam County Memorial Hospital
1926 Oak Street, Po Box 389 Unionville, MO 63565

University Unionville