How do I correctly write an address when it appears inside a sentence?
Mastering Addresses in Prose
Writing an address within a sentence can be tricky because it requires balancing standard postal formatting with the rules of English punctuation. When you move an address from a shipping label into a paragraph of text, you must treat the components as a series of items separated by commas.
The Golden Rule
The most important rule to remember is that every element of an address—the street, the city, and the state—must be separated by a comma. Furthermore, if the sentence continues after the address, you must place a comma after the final element (the state or zip code) to close the parenthetical phrase.
Quick Reference Table
| Component | Rule | Example |
|---|---|---|
| Street to City | Use a comma | 123 Maple St**,** Springfield |
| City to State | Use a comma | Springfield**,** IL |
| State to Zip | No comma | IL 62704 |
| After the Address | Use a comma | ...IL 62704**,** which is... |
Real-World Examples
To see this in action, look at how the punctuation flows around the address components. Notice how the commas act as boundaries for the location data:
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Standard usage: "We are moving our headquarters to 450 Serra Mall, Stanford, CA 94305, starting next month."
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Shortened usage: "The event will be held at 10 Downing St., London, and will feature several guest speakers."
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Note on Abbreviations: In formal writing, it is often better to spell out words like "Street," "Avenue," or "Road." However, in casual or business correspondence, standard postal abbreviations (St., Ave., Rd.) are perfectly acceptable.
Common Pitfalls to Avoid
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The Missing Final Comma: Many writers forget the comma after the state or zip code. If the address is in the middle of a sentence, that final comma is mandatory to separate the address from the rest of the clause.
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The Zip Code Comma: Never place a comma between the state abbreviation and the zip code. It is always written as "State Zip" (e.g., "NY 10001").
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Over-Abbreviating: While "St." is fine for an address, avoid using abbreviations for city names (e.g., write "San Francisco" instead of "SF") unless you are working within strict character limits.
By following these simple punctuation patterns, your writing will remain professional, clear, and grammatically sound.