How To Write A Street Address With Suite Number . There are three ways to correctly display the return and/or recipient name field names if there's a partner or spouse. You can use 'the smith family,' mr. Canada Post Addressing from www.canadapost.ca Include the city, state and zip code on the final line. My address is 320 23 rd st. The correct way to write the envelope depends on how much space you have on the envelope.