— Île-de-France · Seine-Saint-Denis · 8,696 inhabitants

L'Île-Saint-Denis

Public indicators aggregated at commune level: housing market, services, safety, environment. Official sources, updated as of May 2026.

L'Île-Saint-Denis in numbers

Synthetic indicators. Sourced thematic detail below.

  • Median price per m²

    13 182 €/m²

    last 5 years of recorded sales

    DVF — DGFiP · 2025

    Rank 39 of 39 communes in the Seine-Saint-Denis département

  • Energy-sieve homes (EPC F or G)

    5 %

    share of poorly-insulated private homes

    ADEME · 2024

    Rank 4 of 40 communes in the Seine-Saint-Denis département

  • GP access (APL)

    3,6 c/an/hab

    DREES index — under-served threshold = 2.5

    DREES · 2024

    Rank 12 of 40 communes in the Seine-Saint-Denis département

  • Fiber rollout

    97 %

    fiber-eligible homes

    ARCEP · 2025

    Rank 20 of 39 communes in the Seine-Saint-Denis département

  • Average social index of public schools

    89

    DEPP index — national median = 100 ; favored >115, disadvantaged <85

    DEPP · 2023

    Rank 27 of 40 communes in the Seine-Saint-Denis département

  • Recorded crime

    62,7 / 1 000 hab/an

    offences recorded by law enforcement

    SSMSI · 2024

    Rank 15 of 39 communes in the Seine-Saint-Denis département

  • Median disposable income

    14 630 €/UC/an

    per consumption unit

    Filosofi — INSEE · 2020

    Rank 28 of 40 communes in the Seine-Saint-Denis département

  • Poverty rate

    32,0 %

    households below the monetary poverty line

    Filosofi — INSEE · 2025

    Rank 27 of 40 communes in the Seine-Saint-Denis département

  • Population change

    +11,3 % / 5 ans

    cumulative variation INSEE census (2017→2022)

    INSEE RP · 2025

    Rank 2 of 40 communes in the Seine-Saint-Denis département

Housing market in L'Île-Saint-Denis

Median price per m²

13 182 €/m²

Median over 61 sales (2025)

DVF median of recent notarial transactions. French median ≈ €2,800/m². Cross-check with DPE and listing age to estimate negotiation margin.

Source: DVF — DGFiP

Apartment rent

21,0 €/m²/mois

Median rent per m² observed by ANIL observatories. Compare with purchase price for gross rental yield.

Source: ANIL Observatoires des loyers · 2025

Thermal sieves (DPE F/G)

5 %

Share of homes labelled F or G in the surveyed stock (French median ≈ 18%). Climate Act: rental ban for G in 2025, F in 2028, E in 2034.

Source: ADEME Observatoire DPE · 2024

Services and quality of life in L'Île-Saint-Denis

GP accessibility

3,62

consultations / year / inhabitant

DREES APL indicator — French median ≈ 3.5. Tension threshold at 2.5: below this level, the commune is a medical desert.

Source: DREES Indicateur APL · 2024

Public school social index

89

Weighted average Social Position Index (DEPP). French median ≈ 102. Sociological reading, not pedagogical quality.

Source: DEPP IPS écoles · 2023

Fibre coverage (FttH)

97 %

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 · 2025

Safety and risks in L'Île-Saint-Denis

Recorded crime

63

per 1,000 inhabitants

Offences recorded by police/gendarmerie (French median ≈ 35). Includes property, personal and drug offences. Honest reading: compare to neighbouring communes.

Source: SSMSI — Ministère de l'Intérieur · 2024

Classified facilities

27,2 %

ICPE

Share of commune area covered by classified facilities for environmental protection (DGPR). Seveso = major industrial risk, ICPE = facilities subject to authorisation/registration.

Source: DGPR Géorisques · 2025

Flood prevention plan (PPRi)

100 %

of territory under PPRi

Commune area covered by a PPRi. Consequences: mandatory Buyer/Tenant Information (IAL), permit restrictions, home insurance surcharge.

Source: Géorisques PPRi · 2025

Environment and health in L'Île-Saint-Denis

Agricultural pesticides (dept)

0,4 kg/ha

Phytosanitary sales per cultivated hectare at département level (French median ≈ 1.2 kg/ha). Exposure indicator for residents.

Source: BNV-D (OFB) · 2023

Solar potential

1306 kWh/m²/an

Annual horizontal solar irradiation (PVGIS). French median ≈ 1,320 kWh/m²/year. Above 1,500 = very favourable (8-10 year ROI for panels), below 1,100 = longer ROI (12-15 years). MaPrimeRénov subsidy + self-consumption available.

Source: PVGIS European Commission · 2020

L'Île-Saint-Denis preview

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