French Guiana: cities by population
French Guiana has a population of 318,872 (UN estimate, 2026), with Cayenne as its capital. The 16 largest of its 16 recorded towns and cities, ranked.
+99%
since 2000 (160,620)
+48%
projected by 2050 (471,916)
4
people per km²
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.
Largest cities in French Guiana
| # | Place | Region | Population |
|---|---|---|---|
| 1 | Cayenne | Guyane | 61,550 |
| 2 | Matoury | Guyane | 26,350 |
| 3 | Saint-Laurent-du-Maroni | Guyane | 24,287 |
| 4 | Kourou | Guyane | 24,029 |
| 5 | Rémire-Montjoly | Guyane | 19,029 |
| 6 | Apatou | Guyane | 10,059 |
| 7 | Grand-Santi | Guyane | 9,390 |
| 8 | Macouria | Guyane | 8,773 |
| 9 | Maripasoula | Guyane | 8,423 |
| 10 | Mana | Guyane | 5,885 |
| 11 | Sinnamary | Guyane | 3,180 |
| 12 | Saint-Georges | Guyane | 2,742 |
| 13 | Roura | Guyane | 2,229 |
| 14 | Régina | Guyane | 1,657 |
| 15 | Awala-Yalimapo | Guyane | 1,549 |
| 16 | Iracoubo | Guyane | 1,536 |
Twenty years earlier: French Guiana in the 2005 World Gazetteer — population then 194,277.
Common questions
What is the population of French Guiana?
French Guiana has a population of 318,872, the UN World Population Prospects estimate for 2026. The UN's medium-variant projection for 2050 is 471,916 — a forecast, not a measurement.
What is the capital of French Guiana?
Cayenne.