How Radius Mailing Lists Work

A radius mailing list is exactly what it sounds like: every household or business within a set distance of an address. It is one of the simplest and most effective ways to target local customers, and it is easy to get slightly wrong.

Choosing the distance

Start with how customers actually reach you. A coffee shop and a kitchen remodeler draw from very different distances. If you know where current customers live, plot them first. The distance that captures most of them is a better starting point than a round number.

Consider testing two rings: a core radius and an outer band. Coded separately, they show whether the extra distance earns its postage.

A radius plus selections

A radius defines where. Other selections define who. Homeowners within three miles, households with children within five, businesses with more than ten employees within ten. Each selection narrows the count, so check it at every step.

Multiple locations

Franchise systems and multi-site businesses usually need a radius around every location. Where rings overlap, the same household would otherwise be mailed twice. A good radius list assigns each household in the overlap to one location (usually the nearest) and codes it, so response can be tracked by location.

When a circle is the wrong shape

A radius measures straight-line distance. It ignores highways, rivers, mountains, coastlines and the competitor across the street. If your real service area has an obvious shape, a custom boundary or a set of carrier routes may fit better. See carrier routes vs. ZIP Codes.

Radius lists for notifications

Some projects require notifying everyone within a set distance: certain license applications, construction, public hearings. The agency involved sets the rules (distance, whether renters and owners are included, deadlines), so confirm them before ordering. The mapping itself should be precise and documented.

Learn more about radius mailing lists.

General information only. Postal standards and legal requirements change; confirm current rules before each campaign. Questions? Talk to a data expert.