Geographic customer analysis

See where your customers really cluster

Your customer list already knows where your brand is winning. porterzip reads it by place and turns it into a clear picture of where you cluster, where you are growing and who those customers are.

See your growth map
targeting-master_2026Q2.csv 42 markets
# zip city state score vs_expected
1 97212 Portland OR 99 42.11×
2 55414 Minneapolis MN 99 12.43×
3 97006 Beaverton OR 99 5.22×
4 78731 Austin TX 96 3.93×
… 38 more markets
Where

From a list of customers to a map

We place every customer in a ZIP and roll it up into the communities that matter. You see where your base is concentrated and where it is thin, across the whole country, on one map.

Spring EDDM drop
38 targeted markets vs a randomized holdout
+0% incremental lift
90% CI 20–36%, targeted minus held-back
Targeted Held back
+28% launch before after
Growth

Clustering is not the same as growing

A cluster can be a market you won years ago and have not grown since. We separate where you already are from where you are catching on now, so you can tell a settled market from a rising one.

Untapped markets that match your winners
80304 Boulder, CO 96
02143 Somerville, MA 94
53703 Madison, WI 91
97202 Portland, OR 89
84103 Salt Lake City, UT 87
Ranked by demographic resemblance. You have zero customers here today.
Who

The kind of place, not the person

For your strongest markets we show the shape of the area, things like income, age and how people live, so your message fits. It is a read on the place, never a file of people. Your contacts never leave your system.

Common questions

How is this different from a customer heatmap?

A heatmap shows where you already sold, which is usually your biggest market. We show where you are catching on next by measuring the growth your size and ad spend cannot explain.

Do you see my customers personal information?

No. Emails are hashed and addresses are encrypted the moment they arrive, and used only to place each customer in a ZIP. Every export is geography, never a contact.

What do I get back?

A map and a ranked list of your markets, with the growing ones separated from the merely large, ready for the channels you run.

Map your own customers

Send us your customer list. The map and the first proof come back within days.

See your growth map