Across cycles 10, 12 and 16 PharmSee has measured Lincolnshire Wolds rural pharmacy density town by town. Cycle 17 merges the six-town data into a single master atlas using the two-ring rural reporting convention — primary 5-mile catchment alongside corridor 10-mile catchment so coastal geometry and corridor effects are visible at a glance.
The six-town master table
| Town | Postcode | 5mi GP | 5mi Pharm | 5mi Ratio | 10mi GP | 10mi Pharm | 10mi Ratio | Regime |
|---|---|---|---|---|---|---|---|---|
| Horncastle | LN9 5AX | 3 | 2 | 1.5:1 | 12 | 6 | 2.0:1 | Under-supplied interior |
| Spilsby | PE23 5HE | 2 | 1 | 2.0:1 | 12 | 9 | 1.33:1 | Under-supplied interior |
| Market Rasen | LN8 3AR | 1 | 2 | 0.5:1 | 6 | 4 | 1.5:1 | Balanced corridor |
| Louth | LN11 (cycle 12) | — | — | — | — | — | 1.2:1 | Balanced market town |
| Alford | LN13 9BG | 2 | 2 | 1.0:1 | 9 | 15 | 0.6:1 | Coastal (seasonal) |
| Mablethorpe | LN12 1AA | 2 | 5 | 0.4:1 | 5 | 8 | 0.62:1 | Coastal (seasonal) |
Two groupings emerge.
The interior regime (Horncastle, Spilsby, Market Rasen, Louth)
The four inland towns run 10-mile ratios from 1.2:1 (Louth) up to 2.0:1 (Horncastle). Horncastle is the highest rural ratio in PharmSee's England-wide atlas — 12 GP practices served by 6 pharmacies across a 10-mile corridor. At the 5-mile cut Horncastle runs 1.5:1 (3/2) and Spilsby runs 2.0:1 (2/1), so both are structurally under-supplied at resident-catchment distance. Market Rasen at 0.5:1 (5mi) looks surplus but lifts to 1.5:1 at the 10-mile corridor, meaning its town-centre estate is over-sized relative to its immediate-catchment GP count but under-sized against the wider market-town corridor it serves.
These four towns share the "Wolds interior" signature:
- Year-round resident demand (not seasonal)
- Distance-to-nearest-alternative >5 miles (real catchment isolation)
- Ghost rate 0-15% (lower than coastal, much lower than urban)
- Per-branch revenue £115k-£220k (higher than both urban indies and coastal seasonal)
Horncastle and Spilsby in particular are site-selection targets for a new operator entering the Wolds market. At 2.0:1 and 1.33:1 at 10mi the existing pharmacies are working above capacity, and the ghost-branch footprint is near zero — there is no register-artefact inflation hiding real demand.
The coastal regime (Alford, Mablethorpe)
The two coastal towns run inverted ratios — 0.6:1 and 0.62:1 at 10 miles. The inversion is not real over-supply. It is seasonal-demand economics: the Mablethorpe / Sutton-on-Sea / Skegness coastal strip runs 4-6 months of summer trade that doubles year-round population, and the pharmacy estate sizes to the peak. Winter ratios look inflated but winter dispensing volume is low.
Key markers of the coastal regime:
- Ghost rate 20-33% — Lloyds shell codes, Beacon Pharmacy duplicates, stripped-operator successor codes
- Per-branch revenue £130k-£387k — Marisco Pharmacy Mablethorpe at £387k is the highest rural pharmacy in our Lincolnshire dataset
- Raw ratio misleading — the apparent over-supply vanishes when ghosts are stripped, and is further corrected to balanced by applying a winter-only dispensing denominator
The practical reading is that Alford and Mablethorpe cannot absorb new operators — but they could absorb new formats. A winter-only pharmacy-lite format (reduced hours, prescriptions + OTC only, shared GP surgery co-location) would address the off-season resident gap without competing against the summer-trade giants.
The cross-Wolds operator question
For an operator scoping a Lincolnshire Wolds entry, the master table points to exactly two investable towns:
- Horncastle (2.0:1 at 10mi, 1.5:1 at 5mi) — a seventh operating pharmacy in the LN9 corridor would be supported by the existing GP coverage. See PharmSee Horncastle analysis.
- Spilsby (1.33:1 at 10mi, 2.0:1 at 5mi) — a second resident-catchment pharmacy in PE23 would convert a structural gap into local convenience.
The coastal towns and Market Rasen are not investable on the ratio reading alone. Louth at ~1.2:1 is balanced and competitive.
Methodology
All figures from PharmSee's location analyser (/api/location/analyze) at the specified postcodes. 5-mile and 10-mile rings are the two-ring rural convention established in cycle 14. Ghost branches defined as zero 12-month dispensing revenue. Per-branch revenue figures are 12-month totals from NHS Digital ingestion.
Sources
- PharmSee location analyser pulls across LN9 5AX, PE23 5HE, LN8 3AR, LN13 9BG, LN12 1AA (April 2026)
- PharmSee cycles 10, 12, 16, 17 rural Lincolnshire research
- NHS Digital pharmacy contractor register