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Municipality profile · department 50

Property in Le Mont-Saint-Michel

The municipality has 23 inhabitants, a change of -23.3%.

Population
23
-43.9% since 2012

Public data cross-referenced (DGFiP, INSEE, ADEME), recorded on October 3, 2026.

Rents

Reference rents (2025)

Median advertised rent per m² by property type in Le Mont-Saint-Michel, 2025
Property typeMedian rent (€/m²)Range (€/m²)
Flats, all sizes9.07.2 – 11.3
Flats with 1-2 rooms11.78.8 – 15.5
Flats with 3 or more rooms7.35.7 – 9.4
Houses7.86.1 – 10.0

How to read this table. This is a predicted advertised rent, including service charges, per square metre per month — not the rent signed in the lease. The range brackets the estimate: most listings in the municipality fall within it. These estimates are recalculated every year with a new model, so two releases cannot be compared with each other.

Estimations ANIL, à partir des données du Groupe SeLoger et de leboncoin · Rent map 2025

Energy performance of the housing stock

Breakdown of homes in Le Mont-Saint-Michel by energy performance certificate (EPC) band. Since the loi Climat & Résilience (Climate and Resilience Act), it is this band that determines whether a home may be let.

Breakdown of energy performance certificates in Le Mont-Saint-Michel

  • A00.0%
  • B00.0%
  • C00.0%
  • D125.0%
  • E125.0%
  • F00.0%
  • G250.0%

4 homes surveyed. 50.0% of the surveyed housing stock is rated F or G — that is 2 homes already affected, or about to be, by the letting ban. Including band E, targeted for 2034, the share rises to 75.0%.

Rental ban timeline
  1. 2025Gbanned
  2. 2028Fbanned
  3. 2034Ebanned

2021 loi Climat & Résilience (Climate and Resilience Act) — applies to new leases.

Counts and shares by band, across all energy surveys recorded in the municipality.

Source: ADEME, energy performance certificate database · recorded on October 3, 2026

Why this breakdown matters. A dwelling rated G can no longer be let under a new lease since 1st January 2025; F will follow in 2028 and E in 2034. A commune whose stock is largely rated F or G therefore faces a wall of renovation work, or an exit from the rental market.

Note: these figures cover surveyed homes, not the entire stock. A survey is only required on sale or letting, so homes occupied for a long time are under-represented.

Housing stock

Le Mont-Saint-Michel has 40 dwellings at the 2023 census, of which 27.0% are main residences; the rest is split between second homes and vacant dwellings.

What are dwellings used for?

Housing categories in Le Mont-Saint-MichelMain residences : 17.2%Second homes and occasional dwellings : 50.2%Vacant dwellings : 32.6%
  • Main residences17.2%
  • Second homes and occasional dwellings50.2%
  • Vacant dwellings32.6%
A vacant dwelling is one unoccupied on the census date: awaiting sale, letting or works, or simply left empty.

Source: INSEE, census

Between 2012 and 2023, the housing stock grew by -8.5% while the population changed by -43.9%: homes are being built faster than the commune gains residents, a sign of smaller households, second homes or rising vacancy.

Dwellings (2023)40
Households11
Housing: Le Mont-Saint-Michel compared with its département, its region and France
Le Mont-Saint-MichelMancheNormandieFrance
Main residences202317.2%−65.2 pts vs France77.6%82.4%82.4%
Second homes202350.2%+40.4 pts vs France14.9%10.1%9.8%
Vacant dwellings202332.6%+24.8 pts vs France7.5%7.5%7.8%
Residents who own their home0.0%−60.8 pts vs France68.0%62.7%60.8%
Tenant residents100.0%+62.6 pts vs France30.7%36.0%37.4%

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

Sources: INSEE (census), Sit@del · recorded on October 3, 2026

Population and households

Population23
Households11
People per household2.13

Change in the population of Le Mont-Saint-Michel

Population trendPopulation: 105 in 1968, 23 in 2023501001968198219992012202323 inhab.
Municipal population at each census. INSEE does not publish a population every year: the points are the census years available.

Between 2012 and 2023, the population changed by -43.9%.

Source: INSEE, population census · recorded on October 3, 2026

Age breakdown

Age breakdown of the population of Le Mont-Saint-MichelUnder 18 : 4.3%18 to 24 : 4.4%25 to 29 : 12.8%30 and over : 78.5%
  • Under 1814.3%
  • 18 to 2414.4%
  • 25 to 29312.8%
  • 30 and over1878.5%
Population aged 2 and over, 2023 census.

Source: INSEE

What do people aged 15 and over do?

Employment status of residents aged 15 and over in Le Mont-Saint-MichelEmployed workers : 67.6%Retired people : 4.6%Other economically inactive : 27.8%
  • Employed workers1567.6%
  • Retired people14.6%
  • Other economically inactive627.8%
Each resident aged 15 or over is counted once, 2023 census.

Source: INSEE

Le Mont-Saint-Michel compared with its département, its region and France
Le Mont-Saint-MichelMancheNormandieFrance
Population trend2012-2023-43.9%−48.3 pts vs France-0.5%+0.7%+4.4%
Median age202346.6 years+4.1 yrs vs France47.7 years43.9 years42.5 years
Share aged under 2520238.7%−20.1 pts vs France25.1%28.5%28.8%
Share aged 65 and over20238.7%−12.6 pts vs France26.6%23.0%21.3%
People per household20232.1≈ France2.12.12.2

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

Why the number of people per household matters. A household is everyone who shares the same dwelling. The fewer people it has, the more demand shifts towards small homes — studios and one-bedroom flats, sought by people living alone, students and retirees; the more it has, the more demand shifts towards family homes with three or more rooms.

In Le Mont-Saint-Michel, a household has 2.13 people on average, the same as in France (2.17).

Source: INSEE, population census · recorded on October 3, 2026

Income and employment

Income and employment: Le Mont-Saint-Michel compared with its département, its region and France
Le Mont-Saint-MichelMancheNormandieFrance
Unemployment rate (aged 15-64)20230.0%−11.0 pts vs France8.4%11.1%11.0%
Activity rate (aged 15-64)202369.5%−6.2 pts vs France76.8%75.3%75.7%
Share of retired people (aged 15 and over)20234.6%−23.5 pts vs France36.1%31.3%28.1%
Share of pupils and students (aged 15 and over)20230.0%−7.6 pts vs France4.9%6.8%7.6%

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

How to read these figures. The standard of living is a household's disposable income (salaries, pensions and benefits, after tax) divided by its number of consumption units: the first adult counts as 1, other people aged 14 or over as 0.5, and each child as 0.3. It allows a single person and a family to be compared.

The poverty rate is the share of residents whose standard of living is below 60% of the national median. INSEE does not publish it for small communes, for reasons of statistical confidentiality: its absence is not a zero.

The unemployment rate here is the census one: people who declare themselves without work and looking for it, among the economically active aged 15 to 64. It is higher than INSEE's quarterly rate, which follows a stricter international definition.

Sources: INSEE (census, Filosofi) · recorded on October 3, 2026

Economic fabric

Number of businesses located in Le Mont-Saint-Michel

Number of businesses located in Le Mont-Saint-MichelBusinesses: 59 in 2014, 64 in 202455606520142016201820202022202464
Businesses in market activities, excluding agriculture, located in the commune and counted at 31 December each year. This is a stock: it shows the size of the local economy, not how much it is being renewed.

64 businesses in 2024, compared with 59 in 2014: +8.5% over the period.

View the data
Number of businesses by year
YearBusinesses
201459
201559
201658
201754
201854
201957
202057
202156
202259
202363
202464

Source: INSEE, business demography information system · recorded on October 3, 2026

Businesses: Le Mont-Saint-Michel compared with its département, its region and France
Le Mont-Saint-MichelMancheNormandieFrance
Number of businesses20246435,901249,4236,437,729
Change in the number of businesses2019-2024+12.3%−12.7 pts vs France+22.8%+24.2%+25.0%
Businesses per 1,000 inhabitants20242782.6+2760% vs France72.274.597.3

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

In what form do businesses operate?

Legal forms of businesses in Le Mont-Saint-MichelSole traders : 32.5%SAS and SASU : 32.5%SARL and EURL : 10.4%Civil companies, including SCI : 14.3%Other forms : 10.4%
  • Sole traders2532.5%
  • SAS and SASU2532.5%
  • SARL and EURL810.4%
  • Civil companies, including SCI1114.3%
  • Other forms810.4%
Businesses with an open establishment in Le Mont-Saint-Michel, by legal form. A sole trader operates in their own name — this is the status of micro-entrepreneurs; an SCI most often holds property assets rather than running an activity. This count is broader than the INSEE one above, which only includes market businesses with an economic activity.

Sources: INSEE (SIRENE register), INPI (national business register) · recorded on October 3, 2026

Registrations and insolvency proceedings

* current year, incomplete

On one side, announcements of registrations, business creations and takeovers; on the other, court-ordered safeguard, recovery and liquidation proceedings. Legal notices published under postcode 50170. A postcode may cover several communes: in a village, these figures describe the wider catchment area, not the commune alone.

From 2021 to 2025, 298 registrations for 57 insolvency proceedings.

View the data
Registrations and insolvency proceedings
YearRegistrationsInsolvency proceedings
20216512
2022635
20234410
2024667
20256023
2026*4411

Source: BODACC, official bulletin of civil and commercial announcements · recorded on October 3, 2026

Sources: INSEE, BODACC · recorded on October 3, 2026

Local taxation

In 2024, the overall property tax rate on built properties is 41.41% in Le Mont-Saint-Michel.

Rate voted by the commune35.73%
Intercommunal body, syndicates and special taxes5.68%
Overall rate on built properties (total)41.41%
Household waste collection tax (TEOM)11.92%
Overall rate on undeveloped land90.57%
Worked example

A dwelling with a cadastral rental value of €3,000 has a tax base of €1,500: the law sets it at half the rental value. In Le Mont-Saint-Michel, its property tax (taxe foncière) is €1,500 × 41.41% = €621 a year.

On top of this comes the household waste collection tax (TEOM), calculated on the same base: €1,500 × 11.92% = €179. A landlord can recover it from their tenant; the property tax (taxe foncière), by contrast, remains payable by the owner.

These amounts are before the collection charges retained by the State. Your property's rental value is shown on your property tax (taxe foncière) notice.

Property tax rate by year
YearCommunal rateOverall rate on built propertiesHousehold waste
202135.38%41.03%10.81%
202235.38%41.05%10.92%
202335.73%41.42%10.92%
202435.73%41.41%11.92%

Between 2021 and 2024, the overall rate changed by +0.38 point.

How to read these rates. Property tax (taxe foncière) is calculated by multiplying the property's tax base by the overall rate: this is the figure to compare between communes, not the communal rate alone. Since 2021, départements no longer collect property tax on buildings; their former share is included in the communal rate.

A high rate does not mean a high tax. The cadastral rental value is not the market rent: it is an administrative estimate based on 1970 rents, revalued each year by a national coefficient. In a town with old, low rental values, a 50% rate can cost less than a 25% rate elsewhere.

Source: DGFiP, local taxation for individuals (2024 scale) · recorded on October 3, 2026

Living environment

Services and shops in the commune

Shops
BakeryGrocery or convenience store
Services and transport
Post office or postal point

How to read this list. It shows the services for which at least one establishment is recorded in the commune. A service that does not appear is not necessarily absent: INSEE does not locate every facility with the same precision, and the list only includes the main ones.

Source: INSEE, permanent facilities database 2024

Public transport

2 public transport stops are located in the municipality, or 87 stops per 1,000 inhabitants.

Public transport stops in Le Mont-Saint-Michel

Map of public transport stops in Le Mont-Saint-Michel
  • Stops2

Outline of the commune, north at the top.

Each dot is a bus, tram, metro or train stop. The map shows where the network is dense: it says nothing about frequency of service.

Source: transport.data.gouv.fr, scheduled timetables of networks · recorded on October 3, 2026

Stops by network

  • Agrégat des réseaux urbains et interurbains de Normandie2

Fixed internet

  • Dwellings and premises connectable to fibre80.3%
    126 connectable out of 157

Connectable means that optical fibre reaches the building or the street and a subscription can be taken out, not that the dwelling is already subscribed.

Source: ARCEP, fibre rollout · situation as at June 2026

Natural and technological risks

The risks identified by the State in the territory of Le Mont-Saint-Michel, what they mean, and what they change for a property.

Clay shrink-swell

Medium exposurelevel 2 out of 3

Clay soil swells when wet and shrinks when it dries. These movements crack houses with shallow foundations, especially after a drought.

For a property: At this level, a soil survey is mandatory to sell a building plot and before having a house built. For an existing house, look at the cracks and ask whether a drought claim has already been filed.

Seismicity

Lowlevel 2 out of 5

France is divided into five seismicity zones, from 1 (very low) to 5 (high, in the Antilles).

For a property: In this zone, no seismic rules apply to detached houses.

Radon potential

Significant potentiallevel 3 out of 3

Radon is a natural radioactive gas that rises from granitic and volcanic soils and can build up in poorly ventilated rooms, especially on ground floors and in basements.

For a property: At this level, the seller or landlord must inform the buyer or tenant. Good ventilation and a sealed ground floor are usually enough to reduce exposure.

Underground cavities

1in the commune

Former quarries, cellars, galleries or military works recorded beneath the commune.

For a property: A cavity can cause localised subsidence or collapse of the ground. Before buying, check whether the plot is close to a known cavity.

Installations and cavities recorded in Le Mont-Saint-Michel

Map of classified installations and underground cavities in Le Mont-Saint-MichelUnderground cavities — îlot de Tombelaine
  • Underground cavities1

Outline of the commune, north at the top.

Location of known classified installations, Seveso sites and underground cavities.

Source: Géorisques, Ministry of Ecological Transition · recorded on October 3, 2026

A prevention plan is not a bad sign in itself. It shows that the risk is mapped and regulated; it is its absence for a known hazard that should raise questions.

This page describes the commune, not an address. Before a sale or a letting, the seller or landlord must provide a risk statement drawn up for the property. You can obtain one free of charge for any address at georisques.gouv.fr.

Source: Géorisques, Ministry of Ecological Transition · recorded on October 3, 2026

Frequently asked questions — Le Mont-Saint-Michel

How many inhabitants does Le Mont-Saint-Michel have?
Le Mont-Saint-Michel has 23 inhabitants, with a change of -23.3% (INSEE census).
What share of energy-inefficient homes are there in Le Mont-Saint-Michel?
75.0% of surveyed homes are rated E, F or G on the energy certificate (source ADEME).
What is the property tax rate in Le Mont-Saint-Michel?
The overall property tax rate on built properties is 41.4%, of which 35.7% is voted by the commune (source DGFiP).

The same data, put to work.

What the observatory publishes, the five MORYA tools put to use.