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An independent guideChecked against USPS sources

No. 02

Direct mail advertising

Direct mail advertising is paying to put a promotional piece in someone's mailbox. It's a channel with a clear price, a clear audience and one job: get a person to do something they can do at home, like call, visit, scan or come back with a coupon.

Checked November 7, 2026 · Sources at the end

Who uses it

  • Local services: roofers, HVAC companies, plumbers, landscapers, dentists, gyms. Their customers live within a drive of the business.
  • Restaurants and retail: new openings, menus, seasonal offers.
  • Real estate: agents marketing a neighborhood they know.
  • Charities and nonprofits: donation appeals, often by letter.
  • Retailers with catalogs: pages of products that people keep and come back to.
  • Political campaigns: reaching every voter household in a district.

What it does well

  • Geography. You choose the exact area, down to the street.
  • Certainty of delivery. Pieces go to real addresses, not to an algorithm's best guess.
  • Room to explain. A big postcard or a letter can carry far more than a banner ad.
  • Staying power. A coupon on a fridge door keeps working after the ad money is spent.

What it does badly

  • Speed. Design, print and delivery take time. You can't change a headline mid-week.
  • Upfront cost. You pay to print and mail every piece, whoever reads it.
  • Precise measurement. You have to build tracking in: a unique phone number, a code or a QR code. Without that, results are a guess.
  • Personal targeting without a list. Saturation mail reaches everyone on the route, interested or not.

Mail next to digital

The two cover each other's gaps. Mail reaches a whole street whether or not they're online, and it carries a physical reminder. Digital is fast, cheap to change and easy to measure. Plenty of businesses mail an area and then run online ads to the same ZIP Codes, so people see both.

Measuring it

Decide before you mail how you'll know it worked:

  • a phone number used only on the mailer
  • a promo code or offer that only appears in print
  • a QR code or short web address
  • asking every new customer how they heard about you

Questions readers ask

Is direct mail advertising still effective?

It depends on the business, the offer and the area. Mail suits businesses with a local market and a clear offer. The only reliable answer for your business is to test and track a mailing.

How do you track direct mail results?

Use something that exists only on the mailer: a phone number, promo code, QR code or web address. Then count responses.

What's the cheapest way to send direct mail?

Saturation mail, which goes to every address on a route. EDDM Retail is $0.260 a piece with no permit. Bulk saturation letters sent with a permit start at $0.255.