95360

Montmagny

Set up your business in Montmagny (95360), Val-d'Oise: 8 offers covering offices, warehouses, industrial units or land.

Photo: Claude Villetaneuse · CC BY-SA 3.0 (new tab) · Wikimedia Commons (new tab)

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Communauté d'Agglomération Plaine Vallée Canton Deuil-la-Barre INSEE code 95427

  • 15,105Population
  • 1,033Businesses
  • 5,963Working population
  • 8Offers

See the 8 listings in Montmagny PDF profile page

Your CEEVO contact

A CEEVO adviser supports your location project, free of charge.

+33 1 34 25 32 42 ceevo@ceevo95.fr

Contact the CEEVO

Overview

Montmagny (95360) is a municipality in Val-d'Oise (INSEE code 95427), located in the canton of Deuil-la-Barre. It belongs to the intercommunality “Communauté d'Agglomération de la Plaine Vallée”. It has 15 105 inhabitants, of whom 22 % are under 15. The working population numbers 6 699 people, of whom 5 963 are in employment; the estimated unemployment rate is 13,7 %. 1 033 establishments are recorded (sources: INSEE, CEEVO). 1 business park (ZAE) is recorded in the area. The “local employment” indicator is 2 123. The average income per tax household is 28 507 €. The business property tax rate (CFE, excluding ZAE) is 27,98 %. Published offers can be viewed in the catalogue; the full listing is reserved for registered users.

Location

Key figures

The key facts about Montmagny, compared with Val-d'Oise and Île-de-France.

At a glance

  • 96%FibreArcep, Ma connexion internet, T2 2026
  • €2,716/m²Housing price (apartments)DVF, DGFiP / Etalab, 2025
  • 25 haFarmlandInstitut Paris Région, MOS, 2025
  • 1,995Private-sector jobsUrssaf, 31/12/2025
Location in Val-d'Oise

Comparison with the surrounding area

Montmagny against the reference areas. Each chart gives its values, source and reference year.

Population

View the chart data
Population
hab.
Montmagny15,105 hab.
Average town: CA Plaine Vallée10,395 hab.
Average town: Val-d'Oise7,004 hab.

Source : Insee, population census, RP 2023. Population of an average town: total divided by the number of towns.

Average income per tax household

View the chart data
Average income per tax household
€
Montmagny28,507 €
CA Plaine Vallée40,187 €
Val-d'Oise32,489 €
Île-de-France42,208 €

Source : DGFiP, income tax by local authority (IRCOM), IRCOM 2025. Groups of towns: average of the towns weighted by population; Val-d'Oise and Île-de-France: official values.

Unemployment rate

View the chart data
Unemployment rate
%
Montmagny13.7 %
CA Plaine Vallée10.7 %
Val-d'Oise11.8 %
Île-de-France11.2 %

Source : Insee, population census, RP 2023. Groups of towns: average of the towns weighted by the active population; Val-d'Oise and Île-de-France: official values (ages 15 to 64).

Share of under-15s

View the chart data
Share of under-15s
%
Montmagny22.0 %
CA Plaine Vallée19.8 %
Val-d'Oise21.2 %
Île-de-France18.7 %

Source : Insee, population census, RP 2023. Groups of towns: average of the towns weighted by population; Val-d'Oise and Île-de-France: official values.

Establishments per 1,000 inhabitants

View the chart data
Establishments per 1,000 inhabitants
Establishments per 1,000 inhabitants
Montmagny68.4
CA Plaine Vallée86.9
Val-d'Oise79.4
Île-de-France118.5

Source : Insee, business demography (SIDE), 31/12/2024. Active establishments relative to population; Val-d'Oise and Île-de-France: official totals.

CFE rate (business property tax)

View the chart data
CFE rate (business property tax)
%
Montmagny28.24 %
CA Plaine Vallée28.24 %
Val-d'Oise25.56 %

Source : DGFiP, local direct taxation (REI), REI 2025. Town rates; groups of towns and Val-d'Oise are the simple average of the towns (no official overall value).

Premises connectable to fibre

View the chart data
Premises connectable to fibre
%
Montmagny96.6 %
CA Plaine Vallée98.0 %
Val-d'Oise98.2 %

Source : Arcep, broadband and ultra-fast broadband observatory, Q2 2026. Connectable premises relative to all premises; groups of towns: sum of the towns.

Census unemployment rate (declared by census respondents, ages 15-64): it is higher by construction than Insee's localised unemployment rate (annual average, ILO definition), which is not available at municipal level.

Economic DNA

Breakdown of establishments

View the chart data
Breakdown of establishments
Breakdown of establishments%
Tertiary85883.1 %
Industry282.7 %
Construction14714.2 %

Source : CEEVO town database, from Insee (SIDE), 31/12/2024. Active establishments by sector.

Detailed figuresArea, businesses, population, taxes, income, workforce

Territory

Number of ZAE
1
Total floor area of ZAE
11,4 hectares
Available floor area in ZAE
0
No. of location offers (source: CEEVO)
8

Establishments (sources: INSEE, CEEVO)

Industry
28
Construction
147
Commerce / Services
858
Agriculture
-
Total establishments
1,033

Population

Total population
15,105 inhabitant(s)
Share of under-15s (%)
22 %
Share of over-75s (%)
4.3 %
Share of the population (over 15, not in education) with a qualification above Bac +2
33.7 %
Share of the population (over 15, not in education) with no qualification
24.9 %
Share of graduates relative to non-graduates
1.37

Overall taxes

Undeveloped land property tax
135.18 %
Developed land property tax
52.3 %
CFE (Cotisation Foncière des Entreprises, excluding ZAE)
28.24 %

Overall 2025 rate applicable in the municipality: municipality, intercommunal authority, syndicates, special equipment taxes, GEMAPI tax and special annual additional tax (CFE: outside business zones) — DGFiP, REI 2025.

Income

Average income per tax household
28,507.0 €
Compared with the Val-d'Oise average
-3 %
Share of taxable households
42 %

Working population - Jobs

Working population
6,699
In employment
5,963
Unemployed (INSEE definition)
927
Estimated unemployment rate
13.7 %
Local jobs
2,123

Sources : CEEVO town database ; listings published in the CEEVO catalogue on 11/10/2026.

Photographs of Montmagny

Freely licensed photographs from Wikimedia Commons: author, licence and link under each picture.

Offers available in Montmagny

Premises available in Montmagny from Val-d'Oise commercial agents.

OFFICES FOR SALE 356 m²
Offices Sale

OFFICES FOR SALE 356 m²

Montmagny (95360)

Complete profile: free account

356 m² à partir de 188 155 €

6 of 8 listings shown See the 8 listings in Montmagny

Subscribe : Business premises and land in Montmagny (95360) All RSS feeds

Browse by property typeOffices (8)Industrial units (6)Other premises (1)

All business parks in Montmagny

Other municipalities in the same inter-municipal body

News from Montmagny

Sale prices of business premises

Industrial, commercial or similar premises

2,522 €/m² median price per m², over 2021-2025 · 17 sales

Half of the sales are between €1,413 and €2,925 per m² (quartiles). Median surface sold: 113 m².

Comparison: 21 % above the Val-d'Oise median (€2,090 per m² over 2021-2025).

Median price and number of sales per year
YearMedian price (€/m²)Sales
2021fewer than 5 sales< 5
2022fewer than 5 sales< 5
2023fewer than 5 sales< 5
20242,7375
2025fewer than 5 sales< 5

Building plots (all uses)

567 €/m² median price per m², over 2021-2025 · 9 sales

Half of the sales are between €476 and €711 per m² (quartiles). Median surface sold: 300 m².

Comparison: 33 % above the Val-d'Oise median (€426 per m² over 2021-2025).

Median price and number of sales per year
YearMedian price (€/m²)Sales
2021fewer than 5 sales< 5
2022fewer than 5 sales< 5
2023fewer than 5 sales< 5
2025fewer than 5 sales< 5

Actual sale values, excluding rents. One sale = one transaction for a single premises, excluding housing, off-plan sales and bundled sales; outliers removed. The price includes the underlying land.

Source: DVF, DGFiP / Etalab. Sales from 2021 to 2025 (latest transaction on Dec. 31, 2025, files published on May 18, 2026). No median is published below 5 sales (statistical confidentiality).

Land and zoning

Brownfield sites listed (Cartofriches)

  • 1Brownfield sites listed (Cartofriches)
  • 1Potential brownfield
Brownfield sites listed (Cartofriches)
SiteStatusTypeLand unit area (m²)
95427_86Potential brownfieldUnknown type242

The area is that of the land unit (all parcels of the same owner), not of the brownfield itself: it is not an available surface.

Cartofriches, the national brownfield map (Cerema)

Planning document

Local urban plan (PLU), approved on Feb. 4, 2026

Read the document on the Géoportail de l'urbanisme

Zones giving access to aid or exemptions

  • Priority urban district (QPV) 2024 Businesses setting up there may, under conditions, benefit from tax exemptions and support.Districts: Les Lévriers, Centre Ville

Grants, taxes and costs: what these schemes offer

Sources: Cerema, Cartofriches (updated April 7, 2025); Géoportail de l'urbanisme; ANCT; AFR 2022-2027 zoning.

Business premises started (construction starts)

Floor area started by type of premises
Type of premisesTotal 2016-2024 (m²)Yearly average (m²)
Offices1,637182
Warehouses65373
Retail and trade3,231359
Total business premises5,521613

Floor area of construction starts, by actual date. The latest years are incomplete (late reporting) and 2025 is not available. Authorised floor areas are not published: their series is not reliable.

Source: SDES, Sitadel database (September 2026 file), premises started from 2016 to 2024.

Private-sector employment

  • 1,995Private-sector employees, end of 2025
  • 1,289Private-sector employees, end of 2015
  • +54.8 %Change between 2015 and 2025
  • 270Employing establishments
  • 40 of 183Rank in Val-d'Oise

Private-sector employees by broad sector

View the chart data
Private-sector employees by broad sector
employees
Construction544 employees
Other market services (excl. temp work)472 employees
Trade377 employees
Non-market services315 employees
Industry232 employees
Hotels and restaurants55 employees

Source : Urssaf, headcount at 31 December 2025.

Employees under the general social-security scheme, excluding agriculture and household employees.

Source: Urssaf, open.urssaf.fr (ODbL licence), private-sector headcount at 31 December 2025.

Companies based in Montmagny

All 6 companies with 50 or more employees ›

All companies based in Val-d'Oise ›

Access

Population reachable by car

  • 9,800,000Within 60 min · inhabitants
  • 15,700,000Within 120 min · inhabitants

Rounded orders of magnitude: theoretical travel times without traffic; population living in France.

Nearest railway station

Deuil - Montmagny · 0.6 km as the crow flies

Lines: Transilien H

Sources: implantation95.com calculation from IGN Géoplateforme isochrones (network of Oct. 1, 2026), Insee 2023 legal populations and Filosofi 2021; stations: Île-de-France Mobilités (updated Oct. 2, 2026).

Facilities and services in the municipality

Education

  • 9nursery and primary schoolsof which 2 private
  • 2collèges (lower secondary)1,089 pupils
  • 4nurseries (under 3)

The full “Education, higher education and research” section

See on the map : education

Sources: Ministry of Education, education directory (2 Oct 2026); Onisep; Ministry of Higher Education, regional atlas; Insee, permanent facilities database 2025 (nurseries).

Sport

  • 10sports halls
  • 11stadiums and pitches
  • 7tennis courts
  • 9other facilities

37 sports facilities (24 per 10,000 inhabitants) · 2,686 sports licences · 21 clubs

Most common types of facility : Court de tennis (6), Equipement d'activités de forme et de santé (1), Equipement d'athlétisme (7), Equipement équestre (3), Multisports/City-stades (4), Mur et fronton (1)

All sport in Val-d'Oise: map, clubs, athletes

See on the map : sport

Sources: Ministry of Sport, census of sports facilities (Data ES); Paris 2024, Games preparation centres; INJEP, licences and clubs; Wikidata.

Health

  • 2pharmacies
  • 8general practitioners
  • 4dentists
  • 2nurses

See on the map : health

Sources: IGN, BD TOPO (hospitals and clinics, 19 June 2026); Insee, permanent facilities database 2025 (health centres, emergency departments, practitioners and pharmacies).

Culture

  • 1libraries and media libraries

See on the map : culture

Source: Insee, permanent facilities database 2025 (facilities at 1 January 2025).

Shops and public services

  • 1shopping centres

See on the map : shops and public services

Source: IGN, BD TOPO (markets, shopping centres, waste centres, water and sanitation, 19 June 2026).

Culture

3 cultural venues and facilities on record

Culture, media and cinema in Val-d'Oise

Digital and energy

  • 96.6%of premises can connect to fibre (Q2 2026)
  • 6licensed 5G sites
  • 0.2 MWof grid-connected generating capacity · 53 generating installations

Mobile sites by operator (30/06/2026)

  • Orange : 2 4G · 2 5G
  • SFR : 2 4G · 1 5G
  • Bouygues Telecom : 2 4G · 2 5G
  • Free Mobile : 1 4G · 1 5G

Sources: Arcep, ANFR, Agence ORE, Enedis and RTE open data; reference years given on the section page.

The full “Digital and energy infrastructure” section

Electricity consumption and gas

  • 36,871Electricity consumption (MWh) (year 2024)
  • 1,645of which industry (MWh)
  • 9,318of which services (MWh)
  • Gas network : GRDF

Source: open data from the network operators (Enedis, GRDF, RTE). A missing value is not published (statistical confidentiality).

Ecology and transition

  • 0.2MW of connected solar capacity (53 installations)
  • 12EV charging points

Ecology and transition · Check the risks at an address (Géorisques)

Major public projects in Montmagny

All key players in Val-d'Oise ›

Key people

All key people ›

News from Montmagny

All news from Montmagny ›

Headlines and short quotations are reproduced as published by the local authorities, in their original language. The full article is on the source's website.

Official social media accounts

Sources : official website (new tab), checked on 02/10/2026

Contacts

Contacts for Montmagny: town hall, canton, constituency and département.

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