When people type or say the full name of the U.S. state, they often look for a quick way to abbreviate Maryland. Standard abbreviations streamline communication in addresses, forms, and official documents. This guide explains how to abbreviate Maryland correctly in different contexts and why accuracy matters.
Using the correct abbreviation helps avoid delivery issues and supports professional presentation. Below is a structured summary of the most important abbreviation formats and usage notes for Maryland.
| Context | Standard Abbreviation | Usage Example | When to Use |
|---|---|---|---|
| U.S. Postal Service | MD | 123 Main St, Baltimore, MD 21201 | Mailing addresses only |
| General Formal | Md. | Maryland (Md.) is located in the Mid-Atlantic region. | Text, reports, and references |
| APA Style | Md. | According to Md. state policy, ... | Academic citations and references |
| Chicago Style | Md. | The conference was held in Md. last spring. | Published manuscripts and notes |
| Informal Digital | MD or Md | Meeting attendees from MD/Md joined remotely. | Quick notes and chats |
Proper Use in Mailing Addresses
Postal Service Rules for MD
For U.S. mail, the Postal Service requires the two-letter uppercase code MD with no periods. Using MD in all caps ensures automated sorting machines process the letter efficiently and reduces delivery delays.
Formal Writing and Documentation
When to Use Md. with a Period
In sentences and formal documents, Md. with a period is the standard abbreviation. This applies to narratives, reports, and references where the full name Maryland would interrupt the flow of reading.
Style Guides and Academic Contexts
APA and Chicago Formatting Standards
Both APA and Chicago styles specify Md. as the correct abbreviation for Maryland in citations and prose. Consistency with these guides supports clarity and professionalism in academic and publishing work.
Best Practices and Recommendations
- Always use MD in uppercase for U.S. mailing addresses.
- Use Md. with a period in general sentences and formal writing.
- Follow APA or Chicago guidelines when preparing academic or professional documents.
- Avoid mixing abbreviations inconsistently within the same document.
- Verify state abbreviations in official forms to meet compliance requirements.
FAQ
Reader questions
What is the correct abbreviation for Maryland on an envelope?
Use MD in all capital letters with no periods, placed as the two-character state abbreviation in the address line.
Can I use Md without a period in a formal paper?
In formal papers, follow the required style guide; most academic formats specify Md. with a period for narrative text.
Is it acceptable to write Md instead of MD in an email address or subject line?
Yes, Md or MD can be used freely in email correspondence and subject lines, where postal rules do not apply.
What happens if I use the full name Maryland in a mailing address?
Using the full name is acceptable, but MD is preferred by the Postal Service to speed up processing and reduce misrouted mail.