GLOSSARY
What Is Carrier Route Targeting?
Carrier route targeting is a direct mail technique that selects specific USPS carrier routes — the smallest geographic delivery units in the postal system, typically 400–600 addresses — rather than blanketing entire zip codes. For tree service companies, carrier route targeting means identifying only the routes where high-income homeowners live on large properties with mature trees, then mailing exclusively to those addresses.
THE CONCEPT
Understanding carrier routes and why they matter
The U.S. Postal Service organizes mail delivery into a hierarchy: states → counties → zip codes → carrier routes. A carrier route is the daily territory of a single mail carrier — every address they deliver to in a day. A single zip code typically contains 20 to 60+ carrier routes.
When most businesses think "direct mail," they think zip code. But zip codes are imprecise. A single zip code in a suburban market might contain high-income homeowners on wooded half-acre lots, apartment complexes with no yard at all, and everything in between. Mailing the entire zip code means paying for apartment dwellers, renters, and small-lot homes that have no realistic need for tree service.
Carrier route targeting solves this. By analyzing data at the route level — not the zip level — you can identify exactly which routes have the household profile most likely to need tree service and be able to pay for it. Then you mail only those routes.
The result: higher response rates, lower cost per call, and less budget wasted on addresses that were never going to convert.
Zip code targeting
- ✗Every door in the zip — apartments, condos, small lots
- ✗No filtering by income, home age, or lot size
- ✗Can't identify tree density within the zip
- ✗Results stay flat — no route-level data to optimize
Carrier route targeting
- ✓Only routes with high-income homeowners on large lots
- ✓295 data points per route including satellite tree density
- ✓Route-level call tracking shows which areas convert
- ✓Monthly optimization cuts waste and compounds results
IN PRACTICE
How Tree Traction applies carrier route targeting
Tree Traction analyzes every carrier route in a client's market before the first letter is mailed. Each route is scored using 295 data points — including proprietary satellite imagery that measures actual tree canopy coverage at the route level, median household income, median home value, home age, lot size, and homeowner-to-renter ratio.
Routes are ranked. Only the top performers in each market are included in the initial campaign. Clients review and approve the targeted routes before printing begins.
Once the campaign is running, each route has a unique local phone number. When a homeowner calls, the system identifies which route they're on. After each mail cycle, underperforming routes are cut and high-performing routes are scaled. Over time, the campaign concentrates spend in the exact neighborhoods that produce calls — which is why direct mail results compound month over month when done this way.
COMMON QUESTIONS
Carrier route targeting — FAQ
What is a carrier route?
A carrier route is the smallest geographic unit used by the U.S. Postal Service (USPS) to organize mail delivery. Each carrier route represents the daily delivery territory of a single mail carrier — typically 400 to 600 delivery points (addresses). Carrier routes are nested within zip codes: a single zip code may contain dozens of individual carrier routes. This makes carrier routes a much more precise targeting unit than zip codes for direct mail campaigns.
How is carrier route targeting different from zip code targeting?
Zip code targeting treats all neighborhoods within a zip code identically. A single zip code might contain modest apartments, mid-century ranch homes, and million-dollar estates on large wooded lots — all in the same zip. Carrier route targeting selects only the specific routes within that zip code that match your ideal customer profile. For tree service companies, that means targeting only the routes where high-income homeowners have mature trees on large properties — not every door in the zip.
How many carrier routes does a typical Tree Traction campaign target?
Most Tree Traction campaigns target between 8 and 20 carrier routes at launch. Each route receives a unique local phone number for tracking — so a campaign targeting 15 routes has 15 tracking numbers. As the campaign matures, underperforming routes are cut and top-performing routes are kept or scaled. Some long-running campaigns have narrowed to 5–6 consistently high-performing routes.
What data does Tree Traction use to select carrier routes?
Tree Traction analyzes 295 data points per carrier route, including proprietary satellite tree density imaging (measuring actual canopy coverage at the route level), median household income, median home value, median home age, median lot size, and homeowner-to-renter ratio. Routes are scored and ranked. Only the top performers in each market are included in a campaign.
Can I choose which carrier routes my campaign targets?
Yes — you review and approve the targeted routes before any mail drops. Your account manager presents the recommended routes with supporting data, you can request adjustments (for example, to focus on specific neighborhoods or avoid areas you already serve well), and only then does the campaign go to print.
See Which Routes We'd Target in Your Market
Book a free strategy call — we'll pull your market data and show you the routes before you commit to anything.
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