A Tradeoff Nobody Has Actually Measured
Search for a study comparing depth-in-one-area against breadth-across-a-metro for door-to-door merchant services reps specifically, and nothing disclosed-methodology comes back. This is a genuinely unstudied comparison, not a gap in this particular search. What follows is practitioner reasoning built on the volume numbers that do exist for this channel, not a citation of a study that measured the choice directly.
What Staying in One Zip Code Actually Buys
A rep working one zip code sees the same storefronts repeatedly, which compounds in a way a single cold knock cannot. RAIN Group’s touchpoints research, a survey of sellers who outbound-prospect, found it takes an average of 8 touchpoints to land a first meeting with a new prospect, with top performers needing only 5. A rep circling the same few blocks accumulates those touches almost for free, a wave through a window, a second stop after a POS vendor visibly changed, a referral from the shop next door, without adding meaningful travel time between them.
Density also builds a reputation faster. A rep who has genuinely helped three businesses on the same block gets introduced to the fourth by name, a dynamic that a rep spreading thin across a metro rarely gets the chance to build.
What Working a Whole Metro Actually Buys
The opposite case is just as real. A metro-wide rep is not dependent on any one zip code’s business mix or density, if a neighborhood is thin on qualifying merchants this week, there is another one twenty minutes away. That matters more early on, before a rep has built the referral relationships that make a single zip code productive on its own.
A wider net also means less overlap risk with another rep on the same team, and access to a larger total pool of the 20-doors-a-day volume CCSalesPro’s own numbers assume, since no single zip code holds an unlimited supply of qualifying storefronts.
The Volume Math Behind Both Approaches
Both strategies are ultimately trying to hit the same daily door count. The difference is what kind of door it is. A depth-first rep is hitting mostly unique doors early, then a growing share of repeat and referral doors as the territory matures. A breadth-first rep is hitting almost entirely unique doors, indefinitely, which caps how much the touchpoint-compounding effect from RAIN Group’s research above can ever kick in.
Which Approach Fits Which Stage
This is reasoning, not a sourced finding: a brand-new agent with no book yet often has more to gain from depth, since referral density is the fastest lever available to someone with zero existing relationships. An agent further along, with an established zip code already producing referrals on its own, can afford to spend new daily doors on breadth, since the mature territory keeps generating leads without the rep physically standing in it that day.
Neither approach is objectively correct. The honest answer is that the right strategy changes as the same agent’s book matures, not a single choice made once at the start.
Building Pipeline That Does Not Depend on the Choice Alone
Either strategy still leaves a rep dependent on their own physical presence to generate the next qualifying conversation. Human + AI SDRs can run a parallel, SMS-based qualification track that does not care which zip code an agent worked that day, so a slow patch in the field does not have to mean a slow patch in the pipeline.
Sources
The external data in this article draws on the sources below. Figures described in the text as estimates or industry triangulations are directional and are not attributed to a single dataset.
- CCSalesPro, Does Cold Calling Still Work for Selling Merchant Services?
- RAIN Group, How Many Touchpoints Does It Take to Make a Sale?