Address Line 1 vs. Address Line 2
Key differences, comparison table, and field placement rules.
Address Line 1 is for your primary street address (building number and street name), while Address Line 2 is for secondary address info (apartment, suite, unit, or floor number). Line 1 is mandatory for delivery, while Line 2 is optional and only used when applicable.
✓ Key Rules at a Glance
- Line 1 = Primary building location (House # + Street Name). Required.
- Line 2 = Internal sub-unit location (Apt #, Suite #, Floor). Optional.
Online Store Logistics
100 Fulfillment Way
Seattle, WA 98101
Destination Address
Michael Scott
1725 Slough Avenue
Suite 200 Line 1 (Street) + Line 2 (Suite)
Scranton, PA 18503
UNITED STATES
Check Country-Specific Address Rules
Select a country to view official postal line layouts, required fields, and postcode formats:
Explore Related Address Guides
What is Address Line 2?
Address Line 2 is an optional field on checkout and shipping forms used for apartment, suite, unit, or floor numbers. Learn what to put in Address Line 2 with visual examples.
What is Address Line 1?
Address Line 1 is the primary required address field on checkout forms used for your main street address, house number, and street name. Learn how to format it.
What to Put for State/Province?
Stuck on a checkout form asking for State or Province? Learn what to enter for countries like the UK, UAE, Pakistan, Singapore, and Romania.