The commune was originally called Grand-Santi-Papaichton and included the now independent communes of Apatou and Papaichton. On 12 November 1976 Apatou was detached from Grand-Santi-Papaichton and became an independent commune. On 1 January 1993 Papaichton was also detached from Grand-Saint-Papaichton and became an independent commune. On that occasion, the name of the commune was shortened into Grand-Santi. The commune mainly lives from small-scale agriculture and fishing. The commune also contains other villages like Belikampoe [nl].
Population
Historical population
Year
Pop.
±% p.a.
1967
723
—
1974
1,041
+5.35%
1982
754
−3.95%
1990
1,786
+11.38%
1999
2,862
+5.38%
2007
3,427
+2.28%
2012
6,029
+11.96%
2017
7,918
+5.60%
Source: INSEE
Transport
Canoes on the Maroni River
The commune can only be reached by boat or airplane. The Grand-Santi Airport is located 1 km (0.54 NM) northeast of Grand-Santi.