Postcard Marketing for Denver

In an age of overflowing email inboxes and ad blockers, physical mail stands out. Postcards have a 90 percent open rate because there is no envelope to throw away unopened. They sit on counters, get pinned to refrigerators, and get passed along to friends. For Denver businesses targeting local customers, postcards are one of the highest-ROI marketing channels available.

The most effective postcards follow a simple formula: one clear offer, one compelling image, and one obvious call to action. Do not try to list every service you offer on a 4x6 card. Pick your best offer, make it big and bold on the front, and put the details on the back. A restaurant promoting a new menu should show one beautiful dish, not their entire menu. A dentist should offer one specific deal like a free cleaning for new patients, not a list of 12 services.

Size matters for postcards. A 4x6 postcard is the cheapest to print and mail, but it is the same size as junk mail and gets lost in the pile. A 6x9 or 6x11 postcard costs more but gets noticed because it is oversized. For EDDM (Every Door Direct Mail), 6x11 is the most popular size because it meets USPS requirements without additional postage. At PostNet Denver, 4x6 postcards start at $7.50 for 10 cards, and 6x11 EDDM postcards are available for direct mail campaigns.

EDDM is a game-changer for local businesses. Instead of buying a mailing list, you select carrier routes (neighborhoods) and USPS delivers to every address on that route. You do not need names or addresses. The postage cost is about $0.23 per piece, which is roughly half the cost of regular First Class mail. A Denver restaurant can blanket their surrounding 5,000 homes for about $1,150 in postage plus printing costs.

Tracking results is critical. Include a unique offer code on your postcard so you can measure how many customers came from the mailing. Use a QR code that links to a landing page on your website so you can track scans. Or use a dedicated phone number or URL. Without tracking, you are guessing whether your postcards worked.

PostNet Denver handles the entire process: design, print, and EDDM mailing. We can help you select carrier routes targeting the neighborhoods around your business, print your postcards on 16pt cardstock with full color both sides, and deliver them to USPS for you. Start with a small test of 1,000 to 2,000 postcards, measure results, then scale up. Visit postnetdenver.com/products/postcards to order online or call (303) 595-0500 to plan your campaign.