Country profile - COK

Corruption in Cook Islands

2 sub-national regions - 1995-2022. Latest country-level SCI: 63.7 (2022).

Grand: 73.4 Petty: 57.1 Latest observed: 2017

Cook Islands: key corruption facts

The most corrupt region of Cook Islands is Northern Cook Islands (58.6/100), and the least corrupt is Southern Cook Islands (66.6/100), on a 0-100 scale where 0 is most corrupt and 100 is least. All 2 regions are ranked below.

  • In 2022, Cook Islands's national Subnational Corruption Index (SCI) was 63.7/100, on a scale where 0 is the most corrupt and 100 the least corrupt.
  • Most corrupt region: Northern Cook Islands (SCI 58.6/100, 2022).
  • Least corrupt region: Southern Cook Islands (SCI 66.6/100, 2022).
  • Grand corruption (SGCI): 73.4/100; petty corruption (SPCI): 57.1/100 (last directly observed in 2017).
  • Trend: Cook Islands's SCI moved from 68.2/100 (1995) to 63.7/100 (2022).
  • Coverage: 2 regions, 1995–2022. Source: Subnational Corruption Database (Crombach & Smits, 2024, Nature Scientific Data), CC BY 4.0.

How Cook Islands compares: SCD vs. the CPI and World Bank

The Subnational Corruption Index is scored 0–100 on the same orientation as Transparency International's Corruption Perceptions Index (higher = cleaner). The difference: the CPI and the World Bank measure the perceptions of experts and business executives and report one national number, while the SCI is built from what ordinary households perceive and experience — and it breaks Cook Islands into 2 regions.

Index Latest Scale Based on
Subnational Corruption Index (SCI) 63.7 0–100 (100 = cleanest) Households — perception & experience
World Bank Control of Corruption 0 ≈ −2.5 to 2.5 Aggregated expert sources

Most recent year — SCI 2022, CCI 2022. The SCD also publishes region-anchored SUB-CPI and SUB-CCI series so the CPI and World Bank measures can be read at the regional level.

SCI trajectory - 1995-2022

Country-level mean of the Subnational Corruption Index, averaged across all 2 regions. Higher values mean cleaner governance (0 = most corrupt, 100 = least corrupt).

73 57 1995 2022

Source: SCD v1.0 (Comprehensive Dataset). Years where the panel was filled by inter/extrapolation are included in the country mean.

Regions (2)

Each row is a sub-national region with its latest SCI score. Click into any row for the region's full time series.

# Region GDL code Years Latest SCI
1 Northern Cook Islands COKr201 1995-2022 58.6
2 Southern Cook Islands COKr202 1995-2022 66.6

Download Cook Islands

Per-country panel slice in CSV format. Columns: iso, country, gdl, region, year, sci. Direct dataset citations should reference the Figshare deposit (see How to cite).

Download COK.csv