Photo: PoM · CC BY-SA 3.0No historic monuments in Sinnamary
25% of compared French towns have no historic monument either. 19% of Sinnamary’s main homes were built in 2006 or later; the median compared French town has 16%.
Protected historic areas in the département
3 towns in French Guiana have protected historic areas: Cayenne, Saint-Laurent-du-Maroni, Awala-Yalimapo.
1.1% of homes in Sinnamary were built before 1919
Main homes by when they were finished, beside the median compared French town (the tick).
1.1% of its main homes were built before 1919; the median compared French town has 7.4%. More of them were finished between 1971 and 1990 than in any other period (32%).
INSEE, census 2023: main homes (résidences principales) only; second homes and empty homes aren’t dated.
Sinnamary in brief
Its homes are mostly newer: 1.1% were built before 1919, against 7.4% in the median compared French town.
France has no History Grade yet: this page describes, it doesn’t grade.
Sources: Ministère de la Culture, Mérimée base on POP (immeubles protégés au titre des monuments historiques), October 2026 · Ministère de la Culture, sites patrimoniaux remarquables, October 2026 · INSEE, census 2023 (main homes by build period) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated November 4, 2026. 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.