Why 75% of Your Direct Mail Calls Come From 50% of Your Routes (And What to Do About It)

Here’s a number that should bother you.

Across hundreds of direct mail campaigns for tree service companies, a consistent pattern shows up in the data: roughly 75% of all incoming calls come from just 50% of the routes mailed.

That means the other half — the other 50% of routes you’re paying to mail every single month — generates almost nothing.

If you’re spending $3,000/month on direct mail, you’re effectively burning $1,500.

The worst part? If you’re running your own EDDM campaigns, or using a provider that doesn’t track at the carrier route level, you have absolutely no way to know which half is working and which half is a waste. So next month, you mail the same routes. And the month after that. Same results. Same waste. Forever.

This is the single biggest difference between strategic direct mail and spray-and-pray direct mail — and it’s why “I tried direct mail before and it didn’t work” is almost always a tracking problem, not a direct mail problem.

What Route-Level Tracking Actually Means

Standard direct mail tracking usually involves a single call tracking number on the mailer. You know how many calls you got. You have no idea where they came from.

That’s like running Google Ads with no conversion tracking. You’re spending money, calls might be coming in, but you have zero visibility into which keyword, ad, or audience is producing.

Route-level tracking solves this.

The concept is simple: instead of one tracking number on your mailer, you assign a unique local-area-code phone number to each individual carrier route you’re mailing. All of those numbers — you might have 40 or 50 — forward seamlessly to your main business line. You answer your phone exactly the same way. We handle everything else.

Now, every call that comes in is tied to the exact neighborhood it came from. Not just the zip code. The carrier route.

What You Can Do With That Data

Once you know which routes generate calls and which ones don’t, the obvious move is to cut the underperformers and concentrate your budget on what’s working. But that’s just the beginning.

Geographic clustering: Our data consistently shows that high-performing routes tend to cluster geographically. Your best neighborhoods are usually near each other. Once you identify them, you can expand into adjacent routes with similar characteristics — which tend to outperform random zip code picks by a significant margin.

Crew efficiency: When you know which specific neighborhoods are generating your calls, you can route estimates and jobs geographically. Instead of one job on the north side, one downtown, and two 45 minutes away, you’re running 3–4 estimates in the same neighborhood in an afternoon. Less windshield time, more productive days.

Delivery verification: If a cluster of adjacent routes suddenly shows zero calls when surrounding routes are performing normally, something’s wrong. We contact the post office directly to verify delivery. Missed deliveries happen more than anyone likes to admit — mail gets set aside, bundles get skipped, carriers have bad days. Without route-level tracking, you’d never know.

Creative testing: When you’re testing two different mailer designs (headline A vs. headline B, crew photo vs. professional photo), route-level tracking lets you measure which creative performs better in your specific market with real call data — not guesses.

Why Most Providers Don’t Do This

Honest answer: it’s complicated and expensive to set up properly.

Assigning and managing 40–50 individual phone numbers per client, routing them all correctly, building a dashboard that shows the data in a useful way, and then actually using that data to make optimization decisions every month — it requires real infrastructure and ongoing human attention.

Most direct mail companies are essentially print shops with a mailing service attached. They print the mail, send it out, and move on. Adding a meaningful data layer on top of that requires an entirely different operational model.

This is also why DIY EDDM will always produce flat results at best. Without route-level data, there’s no feedback loop. You make the same targeting decisions next month that you made this month, because you have no information to make different ones. Results don’t compound. They plateau.

The Compounding Effect

Here’s what happens when you actually use route-level data:

Month 1: Mail goes out across 40 routes. Calls come in. You now have a baseline — which routes generated calls, which didn’t.

Month 2: Cut the 10 worst-performing routes. Reallocate that budget to your top performers or test adjacent routes with similar characteristics. Average cost-per-call drops.

Month 3: More data. More cuts. More concentration on what works. Response rates are measurably higher than Month 1.

Month 6: You’re mailing fewer total routes than you started with, spending roughly the same amount, and generating significantly more calls. Your campaign has been refined by six months of real-world data.

This is why experienced Tree Traction clients consistently see better results in month 6 than month 1 — not because the mail magically gets better, but because the targeting gets sharper over time. The feedback loop works.

How To Get This For Your Business

If you’re currently doing DIY EDDM or working with a provider that doesn’t do route-level tracking, you have a few options:

1. Build it yourself. You can theoretically buy individual tracking numbers through a service like CallRail or Twilio, assign them to routes manually, and build your own analysis. This is doable but adds significant complexity to an already time-consuming process.

2. Switch to a provider that does it natively. Tree Traction has built the infrastructure for every client, and the data we’ve accumulated across 250+ tree companies means we can often predict which routes will perform in your market before your first mailing even goes out.

The bottom line: every month you’re mailing without route-level tracking is a month you’re paying for data you’re not collecting. That data compounds in value over time. The sooner you start, the sooner results start improving instead of flatlines.

Tree Traction is a direct mail company that works exclusively with tree service businesses. We’re the only company in the U.S. that tracks performance at the individual carrier route level across all client campaigns.

Comparing your options? See how Tree Traction’s route-level tracking stacks up in our full comparison with Leaf Leads — a service that sends the same mail but tracks nothing.