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Le carnaval de SomainPhoto: Mairie de Somain · CC BY-SA 4.0
Somain town hall

Somain invested less per resident in 2025 than 91% of compared communes

Jean-Baptiste Gros has been mayor of Somain since March 28, 2026, elected by the 33 members of the municipal council. At the March 2026 municipal elections, SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPE won 26 of the 33 seats in the second round on March 22, 2026, with 52.6% of the votes. Somain is part of the Communauté d'agglomération Cœur d'Ostrevent.

Next municipal elections

March 2032

Councils are elected for six years; the council elects the mayor.

Register to vote ↗

Throughout this page, the median in Nord and the France median are the median of compared communes (those with an overall grade), each figure its own median.

Mayor
Jean-Baptiste Gros
since March 28, 2026
Council members
33
including 9 deputy mayors
Turnout, March 2026
57%
first round · France median 57%
Debt per resident
€382
end of 2025 · France median €748
In brief

What stands out about Somain’s town hall

Decided in a second round

No list won half the votes in the first round, when 4 lists stood. In the second round on March 22, 2026, SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPE came first with 52.6% and took 26 of the 33 seats; the other lists share the remaining 7. Who’s in charge ↓

Less debt per resident than most

Somain owed €4.6M at the end of 2025, €382 per resident: lower than in 81% of compared French communes (France median €748). That equals 34% of a year’s running costs. The commune’s money ↓

Little investment

Somain invested €158 per resident (buildings, roads, equipment), 12% of its spending: lower than in 91% of compared French communes (France median €403). Investment swings from year to year with projects. The commune’s money ↓

Results as the Interior ministry published them; accounts from the DGFiP via OFGL. Nothing here is graded.

Who’s in charge

The council the voters chose

Seats as the March 2026 results gave them, one dot a seat.

Municipal council · 33 seatsSomain municipal councilSOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPE: 26 of 33
SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPESOMAIN ENSEMBLESOMAIN ENSEMBLESOMAIN ENSEMBLESOMAIN ENSEMBLESOMAIN ENSEMBLESOMAIN, LE BON SENS !SOMAIN, LE BON SENS !33seats
  • SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPE268 community seats
  • SOMAIN ENSEMBLE51 community seat
  • SOMAIN, LE BON SENS !20 community seats

As elected in the second round, March 22, 2026.

The list that comes first gets half the seats; the rest are shared in proportion among the lists with 5% or more, the winner included. So the winning list always has a majority. The same vote gave Somain 9 seats on the council of the Communauté d'agglomération Cœur d'Ostrevent (community seats).

Source: Interior ministry, 2026 municipal election results (March 15 and 22), subject to corrections and appeals.

Who runs Somain

4 authorities share the work

The commune is the tier closest to residents; the intercommunality, the département and the région do the rest.

Commune · the town hallMairie de Somain

Births, marriages and deaths, the electoral roll, nursery and primary schools, local roads, planning permission, the municipal police, and what else the council takes on.

Mayor: Jean-Baptiste Gros · 33 councilors

Intercommunality · communauté d’agglomérationCommunauté d'agglomération Cœur d'Ostrevent

The services its communes share: usually waste collection, economic development and planning documents; often water and local buses.

DépartementConseil départemental · Nord

Social aid (RSA, care for older and disabled people, child protection), collèges, the département’s roads, and funding for fire and rescue.

RégionConseil régional · Hauts-de-France

Lycées, regional trains (TER) and coaches, economic development and job training.

Who to ask

Birth, marriage and death certificatesMairie de Somain
Registering to voteMairie de Somain
Nursery and primary schoolsMairie de Somain
Building permits (filed at the town hall)Mairie de Somain
Household waste (usually)Communauté d'agglomération Cœur d'Ostrevent
Collèges (ages 11 to 15)Conseil départemental · Nord
RSA, care for older people, child protectionConseil départemental · Nord
Lycées (ages 15 to 18)Conseil régional · Hauts-de-France
Regional trains (TER)Conseil régional · Hauts-de-France
ID cards and passportsAny town hall that takes applications, by appointment

The usual split of powers (service-public.fr); an intercommunality’s exact remit varies, so check its website for waste, water and buses.

Membership: COG 2026 (INSEE); intercommunality type: BANATIC, January 2025. What each tier does: service-public.fr.

Who represents Somain

From the mayor to the intercommunality

The officials as the Interior ministry’s register lists them, and the council by list.

  1. 1
    Mayorsince March 28, 2026
    Jean-Baptiste Gros
  2. 2
    Deputy mayors9 adjoints, elected by the council
    Aïcha BourletFabien SaillyJustine BailleuxFabien MarciniakIsabelle WerquinNicolas HoudreVirginie MeunierJérôme Matuszewski+1 more
  3. 3
    Somain municipal council33 seats by list
    SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPE 26 · SOMAIN ENSEMBLE 5 · SOMAIN, LE BON SENS ! 2
  4. 4
    Communauté d'agglomération Cœur d'OstreventSomain holds 9 seats
    Community councilors are drawn from the council lists in the same vote.

Source: Interior ministry, national register of elected officials (RNE), August 11, 2026.

The council

The 33 members of the Somain municipal council

The mayor and 9 deputy mayors first, then the councilors.

NameOfficeSince
Jean-Baptiste GrosMaireMarch 28, 2026
Aïcha Bourlet1er adjoint au MaireMarch 28, 2026
Fabien Sailly2ème adjoint au MaireMarch 28, 2026
Justine Bailleux3ème adjoint au MaireMarch 28, 2026
Fabien Marciniak4ème adjoint au MaireMarch 28, 2026
Isabelle Werquin5ème adjoint au MaireMarch 28, 2026
Nicolas Houdre6ème adjoint au MaireMarch 28, 2026
Virginie Meunier7ème adjoint au MaireMarch 28, 2026
Jérôme Matuszewski8ème adjoint au MaireMarch 28, 2026
Dominique Linke9ème adjoint au MaireMarch 28, 2026
Show the full council (33)
NameOfficeSince
Jean-Baptiste GrosMaireMarch 28, 2026
Aïcha Bourlet1er adjoint au MaireMarch 28, 2026
Fabien Sailly2ème adjoint au MaireMarch 28, 2026
Justine Bailleux3ème adjoint au MaireMarch 28, 2026
Fabien Marciniak4ème adjoint au MaireMarch 28, 2026
Isabelle Werquin5ème adjoint au MaireMarch 28, 2026
Nicolas Houdre6ème adjoint au MaireMarch 28, 2026
Virginie Meunier7ème adjoint au MaireMarch 28, 2026
Jérôme Matuszewski8ème adjoint au MaireMarch 28, 2026
Dominique Linke9ème adjoint au MaireMarch 28, 2026
Pierre BrabantConseiller municipalMarch 22, 2026
Myriam CammeraConseiller municipalMarch 22, 2026
Francis CaronConseiller municipalMarch 22, 2026
Sigline de CampeauConseiller municipalMarch 22, 2026
Romaric DienneConseiller municipalMarch 22, 2026
Laurence DucheminConseiller municipalMarch 22, 2026
Christophe DupriezConseiller municipalMarch 22, 2026
Daisy FinkeConseiller municipalMarch 22, 2026
Fabrice GambierConseiller municipalMarch 22, 2026
Sébastien GrefConseiller municipalMarch 22, 2026
Mohamed KahalerrasConseiller municipalMarch 22, 2026
Yazid LehingueConseiller municipalMarch 22, 2026
Lolita LesschaveConseiller municipalMarch 22, 2026
Yves LocogeConseiller municipalMarch 22, 2026
Matthieu MarchioConseiller municipalMarch 22, 2026
Élisa Papadia LecocqConseiller municipalMarch 22, 2026
Fabienne Preud'HommeConseiller municipalMarch 22, 2026
Julien QuennessonConseiller municipalMarch 22, 2026
Hervé SouffletConseiller municipalMarch 22, 2026
Sarah VandrepotteConseiller municipalMarch 22, 2026
Mélissa Von WallensteinConseiller municipalMarch 22, 2026
Claire WiartConseiller municipalMarch 22, 2026
Véronique WuillaumeConseiller municipalMarch 22, 2026

Names and offices as the Interior ministry’s national register of elected officials (RNE) published them on August 11, 2026, written as it writes them. Public role only. Later resignations and replacements aren’t shown.

The council: same source as Who represents Somain, above.

2026 elections

How Somain voted in March 2026

4 lists stood in the first round; none won half the votes, so a second round followed.

Municipal council of Somainsecond round · March 22, 2026
SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPEled by Jean-Baptiste Gros · ministry label: Miscellaneous · 26 seats52.6%
SOMAIN ENSEMBLEled by Julien Quennesson · ministry label: Miscellaneous left · 5 seats31.5%
SOMAIN, LE BON SENS !led by Sigline de Campeau · ministry label: Rassemblement national · 2 seats15.9%

5,027 votes cast for a list

Turnout · second round
57%

5,102 of 8,919 registered voters in Somain voted.

43 blank and 32 spoilt ballots, not counted in the shares.

Municipal council of Somainfirst round · March 15, 2026
SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPEministry label: Miscellaneous32.4%
SOMAIN, ENSEMBLE POUR DEMAINministry label: Union of the left23.6%
SOMAIN, AVEC VOUS & POUR VOUSministry label: Miscellaneous left22.1%
SOMAIN, LE BON SENS !ministry label: Rassemblement national22.0%

4,987 votes cast for a list · no seats given out: a second round followed

Turnout · first round
57%

5,061 of 8,920 registered voters in Somain voted.

24 blank and 50 spoilt ballots, not counted in the shares.

Turnout, first round · March 15, 2026

SomainMedian in NordFrance median
Voted56.7%
0%50%100%

Shares are of the votes cast for a list, leaving out blank and spoilt ballots. Lists in vote order; the colors only tell the lists apart.

2026 elections: same source as Who’s in charge, above.

The commune’s money

Somain spends €1,281 per resident a year

The commune’s consolidated accounts: main and annexed budgets, transfers between them removed.

Spending
€1,281
per resident, 2025
€15.3M in all
Running costs
€1,123
per resident, 2025
€13.5M in all
Investment
€158
per resident, 2025
€1.9M in all
Debt
€382
per resident, end of 2025
€4.6M in all

Per resident, 2025 · against compared communes

SomainMedian in NordFrance median
Spending€1,281
Running costs€1,123
Investment€158
Debt€382
€0€1,000€2,000

Spending and debt per resident, 2018 to 2025

€0€500€1,000€1,500€2,00020182019202020212022202320242025Spending 2018 : €1,060Spending 2019 : €1,069Spending 2020 : €1,049Spending 2021 : €1,039Spending 2022 : €1,419Spending 2023 : €1,381Spending 2024 : €1,360Spending 2025 : €1,281Debt 2018 : €654Debt 2019 : €599Debt 2020 : €554Debt 2021 : €488Debt 2022 : €443Debt 2023 : €483Debt 2024 : €436Debt 2025 : €382DebtSpending

Somain owed €4.6M at the end of 2025, €382 per resident, lower than in 81% of compared French communes, equal to 34% of a year’s running costs.

Show year by year
YearSpendingInvestmentDebtDebt in all
2025€1,281€158€382€4.6M
2024€1,360€205€436€5.2M
2023€1,381€346€483€5.8M
2022€1,419€389€443€5.3M
2021€1,039€154€488€6M
2020€1,049€156€554€6.8M
2019€1,069€180€599€7.5M
2018€1,060€198€654€8.4M

Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.

Towns its size

The 10th lowest debt per resident of 41 communes its size

The 40 compared communes nearest in population, debt per resident at the end of 2025.

Somain €382
HœnheimThiers
€0€1,200€2,400

Lowest: Hœnheim, €1. Highest: Thiers, €2,261.

Get involved

Have a say in Somain

Register to vote

French citizens register online or at the town hall; citizens of other EU countries can vote in municipal elections too.

service-public.fr ↗
Check your registration

See where you’re registered and which polling station is yours.

service-public.fr ↗
Go to a council meeting

Council meetings are public; the agenda and minutes are posted at the town hall and usually on its website.

service-public.fr ↗
Contact the town hall

Opening hours, address and phone number of the mairie of Somain in the public services directory.

lannuaire.service-public.fr ↗
Stand for the council

Who can stand, how lists are formed and the deadlines, from the Interior ministry.

interieur.gouv.fr ↗
How to read these numbers

What this data can and can’t tell you

  • Mayors and councilors. From the Interior ministry’s national register of elected officials (RNE) as published on August 11, 2026: name, office and start dates, nothing else. The register counts a mayor as a councilor too; the page counts each person once. It isn’t a live roll: resignations and replacements after that date aren’t shown, and no party is inferred for any official.
  • How the council is elected. Since March 2026 every commune elects its council from lists (a 2025 law extended list voting to communes under 1,000). A list with more than half the votes in the first round wins; otherwise lists with 10% or more can go on to a second round, where the list ahead wins. It gets half the seats, and the rest are shared in proportion among lists with 5% or more. The council then elects the mayor and the deputy mayors.
  • The label beside a list. The political nuance the prefecture gave the list for the ministry’s results (Divers droite, Union de la gauche…), shown as published. It isn’t the list’s own description; many lists, most in small communes, have none.
  • The commune’s money. OFGL’s consolidated accounts from the DGFiP, 2018 to 2025; 2025 is provisional. Spending and investment leave out loan repayments; running costs are part of spending. Debt is what was owed at the end of the year.
  • Per resident. Divided by the DGFiP’s population for that year (population totale, which counts some people, such as boarding students, in two communes), so it can differ from the census figure elsewhere on the site.
  • The medians. Beside the town’s figure, the median of compared communes in its département and in France (those with an overall grade). A commune’s spending follows its size and its role: one that runs a pool or a theater for the villages around it spends more per resident.

Questions about Somain’s town hall

Who is the mayor of Somain?

Jean-Baptiste Gros, mayor since March 28, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).

How many councilors does Somain have?

The Somain municipal council has 33 members, the mayor and 9 deputy mayors included.

Who won the 2026 municipal elections in Somain?

SOMAIN AU COEUR AVEC JEAN-BAPTISTE GROS ET SON EQUIPE, in the second round on March 22, 2026, with 52.6% of the votes; it holds 26 of the 33 seats.

What was the turnout in Somain?

56.7% of registered voters voted in the first round on March 15, 2026; the median of compared French communes was 57.4%.

When are the next municipal elections in Somain?

Councils are elected for six years, so the next general municipal elections are due in March 2032. A council can be re-elected sooner if it loses too many members.

How much debt does Somain have?

€4.6M at the end of 2025, €382 per resident; the median of compared French communes was €748.

Which intercommunality is Somain part of?

Somain is part of the Communauté d'agglomération Cœur d'Ostrevent, which runs the services its communes share.

Sources: Interior ministry RNE, August 11, 2026 · Interior ministry, municipal results 2026 · OFGL consolidated commune accounts 2018–2025 · INSEE COG 2026 and BANATIC (January 2025) for the intercommunality. Under the Licence Ouverte / Open Licence 2.0 (Etalab).

Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.