Public school social index
108
Weighted average Social Position Index (DEPP). French median ≈ 102. Sociological reading, not pedagogical quality.
Source: DEPP IPS écoles · 2024Reliability high
— autre · 977 · 10,660 inhabitants
Saint-Barthélemy
Public indicators aggregated at commune level: housing market, services, safety, environment. Official sources, updated as of May 2026.
Themes at a glance
Per-theme summary derived from sourced indicators. Tap a theme for the detail.
Saint-Barthélemy in numbers
Synthetic indicators. Sourced thematic detail below.
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Fiber rollout
82 %
fiber-eligible homes
ARCEP · 2025
See detail → -
Average social index of public schools
108
DEPP index — national median = 100 ; favored >115, disadvantaged <85
DEPP · 2024
See detail → -
Water hardness
88 °f
soft <15, medium 15-30, hard 30-40, very hard >40
SISE-Eaux ARS · 2025
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Services and quality of life in Saint-Barthélemy
Fibre coverage (FttH)
82 %
Share of premises reachable by optical fibre (ARCEP). French median ≈ 75%. Tenant-attraction lever and near-mandatory residential criterion in 2026.
Source: ARCEP Observatoire fibre · 2025Reliability medium
Environment and health in Saint-Barthélemy
Water hardness
88 °f
Hydrotimetric titre (French median ≈ 22 °f). Below 15 = soft ; 22-32 = hard ; above = very hard (scaling, energy overconsumption).
Source: ARS — SISE-Eaux · 2025Reliability medium
— Live calculations
Every dimension, in euros.
On this page, 6 calculations with the real figures for Saint-Barthélemy: whether to buy or rent, how much to negotiate, the monthly mortgage payment, the net rental yield, the monthly cashflow and the energy bill.
Method and assumptions detailed in Transparency.