How to pick EDDM carrier routes that actually convert
Route selection is the part of EDDM that most affects response rate. Here is how to pick routes near your service area, filter by household type, and match route count to your budget.
This page is for the small business owner or marketer who has opened the USPS EDDM tool, seen a map of colored polygons, and wondered which ones to click. By the end you will know what a carrier route is, how to filter by residential or business addresses, when ZIP-level targeting makes sense, and how many routes to pick at each budget. The EDDM size guidelines pillar covers what to mail; this page covers where.
The short answer: pick routes near your service area, then filter by household type and budget
Good EDDM route selection follows three steps. First, draw a circle around the addresses you can realistically serve — for most local businesses that is a 3 to 5 mile radius. Second, inside that circle, filter for the household type that matches your customer (residential, business, or both). Third, pick a number of routes you can afford to mail at least twice within 60 days. Proximity and frequency move response — not raw reach.
What a USPS carrier route actually is
A USPS carrier route is the delivery path one mail carrier walks or drives in a single day. Each route covers roughly 400 to 800 addresses on average, ranging from about 200 in rural areas to 1,000+ in dense urban neighborhoods. When you select a route, every active address on that path gets your mailpiece — you cannot skip houses or exclude blocks.
The internal USPS code is "CRRT" (carrier route code), usually written as a five-digit ZIP plus a four-character suffix like C001 (city) or R045 (rural). The configurator shows routes as map polygons with address counts, so memorizing codes is not required.
Residential vs. business addresses (you can target one or both)
Every carrier route has two address counts: residential (homes and apartments) and business (storefronts, offices, light industrial). The EDDM tool lets you mail to one, the other, or both. Picking the right mix is the biggest filter most people skip.
- Residential only if you sell to consumers — restaurants, dentists, real estate, home services, salons. Business addresses here are wasted postage.
- Business only if you sell to other businesses — commercial cleaning, B2B services, office supply. Most routes have far fewer businesses than homes, so this covers more geography for the same piece count.
- Both if your offer works for either — a coffee shop, notary, gym, or bank branch.
Switching from "both" to "residential only" on a typical route drops piece count and postage by 5 to 15%.
ZIP-code targeting and route-level targeting (when to use each)
The EDDM tool supports two starting points: type in a ZIP and see every route inside it, or draw a custom area on the map.
- Start with a ZIP code when your service area follows a postal boundary — a city, a town, a delivery zone you already track.
- Start with a map area when your service area is a radius or a neighborhood that crosses ZIP boundaries. A 4-mile delivery radius almost always cuts across two or three ZIPs, and you do not want to mail half of each.
The mistake to avoid is selecting an entire ZIP without looking at the routes inside it. Most ZIPs contain 20 to 60 routes, and the ones at the far edge may be a 20-minute drive from your storefront. ZIP-level thinking is fine for planning; route-level selection is what you mail.
Demographics available in the USPS EDDM tool
The USPS EDDM lookup tool shows three demographic data points per route: median age, median household income, and average household size. These come from US Census data aggregated to the route level — a neighborhood sketch, not a household profile.
- Median income helps you skip routes far above or below your offer's price point.
- Median age helps with life-stage offers. Assisted living wants higher median age; a daycare wants the opposite.
- Average household size is a rough proxy for families vs. singles — useful for pediatric, education, or family-restaurant offers.
When EDDM is the wrong tool: If your service area is one ZIP code and you need household-level targeting (e.g., homeowners with kids under 5), EDDM is the wrong tool. Use a Targeted Mailing List instead — you will pay more per piece but waste much less.
Route saturation: mailing every door, not skipping
EDDM stands for Every Door Direct Mail, and the "every door" part is the rule. When you select a route, USPS requires you to mail a piece to every active address — no cherry-picking streets or skipping apartments. This is what makes EDDM cheap; USPS does not sort to individual addresses. If a route has 650 addresses, you order 650 pieces. If you need to mail only one side of a street, EDDM is not the product — that is a targeted addressed list.
How many routes to choose based on budget
The right number of routes depends on what you can spend including print, postage, and bundling. The table below is a starting point — actual counts vary by neighborhood density and the size you pick.
| Budget (total) | Suggested route count | Approx pieces | Notes |
|---|---|---|---|
| Under $1,500 | 1–2 routes | ~1,000–1,500 | First-time test, single neighborhood |
| $1,500–$3,500 | 3–5 routes | ~2,500–4,000 | Local restaurant, salon, contractor |
| $3,500–$8,000 | 6–12 routes | ~5,000–10,000 | Multi-neighborhood, multi-suburb |
| $8,000+ | 15+ routes | 12,500+ | Regional reach, hits print volume break |
Note: piece counts assume an average of about 800 addresses per route. Cost also scales with postcard size — a $3,000 budget at 6.5 x 9 covers more routes than the same budget at 9 x 12. The EDDM postcard sizes page covers the size-to-cost relationship, and the EDDM postage rates page covers the postage side, since route count drives postage total.
Rule of thumb: Most local businesses see better results mailing the same 3–5 routes twice (within 60 days) than mailing 10 new routes once. Frequency beats reach for local.
Common route selection mistakes
Three patterns account for most of the wasted spend in route selection.
- Mailing too far from your service area. A pizza shop with a 4-mile delivery radius picks routes 8 miles out. Response from distant routes is a fraction of close ones, and you cannot fulfill quickly anyway. Stay inside the radius you can serve.
- Ignoring residential-only filtering for B2C offers. A dental office leaves the "include business" toggle on and mails 600 pieces to a commercial strip with no homes — postage-paid junk to a mailroom. Filter to residential before you confirm.
- Over-mailing one ZIP code. Hitting the same 8 routes three months in a row without rotating leads to diminishing returns. Rotate at least 30% of your routes if you mail the same ZIP more than twice a quarter.
Frequently asked questions
How many addresses are on a typical carrier route?
Between 400 and 800 active addresses for most suburban and urban routes. Rural routes can drop to 200 or less; dense city routes can exceed 1,000. Always check the count before estimating your piece order.
Can I mail to only the residential addresses on a route?
Yes. The EDDM tool and the configurator both include a per-route toggle to exclude business addresses. "Residential only" drops piece count and postage by the share of business addresses on the route, usually 5 to 15%.
What is the minimum number of routes I can mail?
One. EDDM Retail has a 200-piece minimum per route, and most routes clear that easily. A single-route mailing is usually only worth it as a test before scaling.
Can I exclude apartment complexes from a route?
No. EDDM requires saturation — every active address on the route receives a piece. To exclude specific address types, switch to a targeted addressed list.
How often should I mail the same routes?
Twice within 60 days is the sweet spot for most local offers. The second mailing lifts response on the first because the brand is familiar. Beyond two mailings per quarter, response per piece flattens — rotate in new routes or take a break.
How do I track responses from an EDDM campaign?
EDDM pieces don't carry individual barcodes, so USPS doesn't give you per-piece delivery tracking the way First-Class Mail does. What works for tracking response (which is what you actually care about) is putting one or more of these on the piece itself:
- A unique phone number. A tracking number that forwards to your real line. Every call rings through normally, but you see a log of how many came from the EDDM mailing. CallRail and Twilio both offer this for under $30 a month.
- A QR code pointing to a campaign-specific landing page. Scan-to-page is the cleanest digital signal. Use a URL like yoursite.com/eddm-may so Google Analytics can show you how many scans converted.
- A promo code at the offer. "Mention EDDM10 for 10% off" — easy for staff to capture at the counter or on the phone.
- A coupon to cut out and bring in. Old-school but it works. Count what comes back.
Pick one or two; don't overload the design. The goal is one obvious signal you can count, not three competing ones.
Pick your routes and get a live quote
The fastest way to see your numbers is the route picker inside the configurator. The EDDM quote page shows selected routes on a live map, displays residential and business counts, and prices print plus postage in one view. For a second set of eyes before you commit, call us at (713) 300-0687 and we will walk the list in about ten minutes.