Guides to US addresses and ZIP codes, page 23

Practical guides on address formats, ZIP codes, area codes and test data, plus reference pages for every state and major city.

Geography
US Time Zones and How They Relate to Addresses
How the six main US time zones map to states and ZIP codes, which states are split between zones, and why it matters for apps.
Address basics
Military Addresses Explained: APO, FPO and DPO
How to write addresses for US military and diplomatic personnel overseas using APO, FPO, DPO and the AA, AE and AP state codes.
Testing and development
Designing Address Fields for a Better Checkout
UX guidelines for US address forms: field order, autocomplete attributes, labels, mobile keyboards and error handling that reduce drop-off.