Cayenne vs Kourou
Two municipalities in Guyane, France, side by side on the five things this site grades — climate & hazards, local vitality, services, affordability and property market. Every figure comes from official open data, and the ones that cannot honestly be compared are marked rather than quietly averaged.
Cayenne
Kourou
A provisional grade had at least one pillar filled with a neutral 50 rather than measured. Where one side is provisional and the other is not, the gap between the two grades may be partly made of that fill — treat the pillar rows below as the evidence, not the letters.
Pillar by pillar
| Pillar | Cayenne | Kourou |
|---|---|---|
| Climate & hazards | not measured | not measured |
| Local vitality | 75/100 ▲ | 32/100 |
| Services & access | 29/100 ▲ | 14/100 |
| Affordability | 11/100 | 17/100 ▲ |
| Property market | 27/100 | 33/100 ▲ |
Pillar scores are percentile ranks within each municipality's own country, so a 70 in Spain and a 70 in Italy each mean "ahead of 70% of this country's towns" — not that the two places are alike.
The underlying figures
| Indicator | Cayenne | Kourou |
|---|---|---|
| Population | 65,956 inhab. (2020) | 24,805 inhab. (2020) |
| Population trend (~10y) | +14.5% (2015→2020) growing / stable | -5.4% (2015→2020) declining — the key rural depopulation risk |
| Price (€/m²) | 2,814 €/m² 2020 data | 2,471 €/m² ▲ 2020 data |
| Price appreciation (~5y) | -0.7%/yr 2017→2023 | +0.8%/yr ▲ 2017→2023 |
| Gross rental yield | 7.0% est. from ANIL rent ÷ DVF price | 7.8% ▲ est. from ANIL rent ÷ DVF price |
| Tourism / short-let potential | 99.3 beds / 1,000 inhab. collective accommodation + second homes (INSEE bed equivalences) | 138.8 beds / 1,000 inhab. ▲ collective accommodation + second homes (INSEE bed equivalences) |
| Foreign residents | 41.91% (2021) | 37.21% (2021) |
| Everyday essentials | 0 of 4 in the municipality None mapped here | 0 of 4 in the municipality None mapped here |
| International airport | Gran Canaria (LPA) (4664 km) ▲ | Gran Canaria (LPA) (4701.5 km) |
Which way each is going
| Population momentum | Cayenne | Kourou |
|---|---|---|
| Annualised change | +2.75 %/yr 2015–2020 | -1.10 %/yr 2015–2020 |
Demographic momentum is an absolute rate and feeds no grade of its own — see the momentum pages.
How to read this
Grades are computed from official open data — statistics offices, hazard catalogues, land registries and OpenStreetMap — never from reviews, listings or opinion. Each indicator is ranked against the other municipalities of the same country, except the natural hazards, which are absolute 30-year probabilities and therefore mean the same thing everywhere.
That is why some rows above carry no comparison. Spain counts registered tourist dwellings where Italy counts every tourist bed place; each statistics office defines a foreign resident differently; the property-price vintages run from 2018 in Italy to 2025 in Portugal. Putting two such numbers side by side and calling the difference a finding would be inventing one, so the row states the reason instead.
Full method, sources and known gaps: the methodology page.