porterzip versus a heatmap

A heatmap shows the past, we show what is next

A customer heatmap is a useful picture of where you already sold. The trouble is that is usually just your biggest market. Here is how porterzip is different.

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
The past

A heatmap shows where you already are

Plot your customers and the brightest spots are your largest, oldest markets. That is helpful for seeing your base, but it points your budget at places you have already won rather than places you are winning.

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
What is next

porterzip shows where you are catching on

We measure the growth that your size and ad spend cannot explain, then rank markets by that momentum. The places at the top are the ones pulling in new customers on their own, whether or not they are the biggest.

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.
End to end

And it does not stop at a picture

A heatmap is where the work ends. With porterzip the ranked markets come formatted for the channels you run, and after your campaign we measure the lift against a holdout. You go from a picture to a decision you can prove.

Common questions

Is a heatmap useless then?

No. It is a fine picture of your base. It just answers where you have already been, not where you are growing, which is the question that guides where to spend next.

Do I still see where my customers are dense?

Yes. We show density and growth side by side, so you can tell a large settled market from a rising one.

See growth, not just density

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

See your growth map