Territory Planning

What is territory planning?

Territory planning decides which representative covers which customers. In pharmaceutical and medical device companies, a territory is usually a set of ZIP codes or counties plus the key accounts inside them, such as hospitals, health systems, infusion centers and large group practices.

The goal is balance. Each territory should hold enough sales potential to justify a representative and a workload one person can cover, with reasonable travel time. Unbalanced territories distort results, because performance then reflects the map more than the effort.

How territory planning works

A territory planning cycle typically includes:

• Sizing: estimating how many representatives or account managers the brand needs, based on target counts and desired call frequency.
• Alignment: assigning geographies and accounts to territories, then grouping territories into districts and regions.
• Balancing: comparing territories on potential, workload and travel time, then moving geographies to even them out.
• Call planning: setting which target healthcare professionals each representative should see and how often.
• Realignment: adjusting territories after launches, loss of exclusivity, vacancies or changes in health system ownership.

Why territory planning matters

Territories feed directly into quota setting and incentive compensation, so their fairness affects field force morale and retention. For launches, coverage decisions determine whether high-potential prescribers are reached in the first months, when early uptake is watched most closely.

Account-based selling has made geography alone less reliable. When a health system employs many physicians and centralizes formulary decisions, one account team may need to cover facilities that span several traditional territories.

Data considerations for territory design

Clinician locations usually come from the practice location address in NPPES, which is self-reported and can show a billing office instead of the clinic. ZIP codes are U.S. Postal Service delivery areas rather than fixed boundaries, so mapping tools often use the Census Bureau's ZIP Code Tabulation Areas (ZCTAs) as approximations. Potential estimates built from Medicare data miss commercially insured patients and lag by about two years.