Riding profile

Seine-Saint-Denis — 6ème circonscription

Circonscription française — Seine-Saint-Denis

The question

Seine-Saint-Denis — 6ème circonscription: a safe seat for the united left?

Editorial read

Seine-Saint-Denis — 6ème circonscription, a mixed riding in Seine-Saint-Denis, elected a member with the united left in the previous cycle, with a 0-point margin. The Vote-Scope model projects the united left ahead at 67% vote share, against 14% for the LR right, and the probability of a close race is negligible.

Sitting member

Bastien LACHAUD

Sits with Left (NFP)

Current forecast

Left (NFP)

Safe

Probability: 100%
Mean margin (pts): 52.8
P(close race): 0%

Projected vote share

Projection by party

Left (NFP) 67.2%
LR and allies 14.4%
RN and allies 13.9%
Far left 2.5%
Others 1.9%

In context

How this riding stacks up

	Left (NFP)	LR and allies	RN and allies	Far left
HereSeine-Saint-Denis — 6ème circonscription	67.2%	14.4%	13.9%	2.5%
Provincial averageSeine-Saint-Denis	58.8% +8.5	11.9% +2.5	19.9% −6.0	1.7% +0.8
National averageFrance	29.5% +37.7	12.2% +2.2	36.0% −22.1	1.1% +1.4

Provincial averages computed across the 577 riding-level projections (unweighted mean).

Previous election · FR LEG_2024

Won by

Left (NFP)

Margin

0.0 pts

Margin shift vs current projection

+52.8 pts

Detailed result · FR LEG_2024

Candidates and votes

Candidate	Party	Votes	%	Occupation
Bastien LACHAUD Elected	Left (NFP)	25,777	71.7	—
Nathalie SACK	LR and allies	5,014	13.9	—
Nacéra SALHAOUI	RN and allies	4,175	11.6	—
Nathalie ARTHAUD	Far left	996	2.8	—

Around the region

Nearby ridings

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Last model run: July 11, 2026
Cycle: fr_leg_next