Italy vs United States: Political centralization index
Italy
0.162
in 2025
United States
0.153
in 2025
Italy rank
125th
United States rank
128th
Political centralization index over time
- Italy
- United States
How they compare
Italy currently reports 0.162 against 0.153 in United States, a difference of 0.009.
That makes Italy's figure about 1.1 times United States's.
Across all 211 years both countries report, Italy has been ahead every year.
Italy ranks 125th and United States ranks 128th of 176 countries.
Italy has averaged higher in every one of the 22 decades both report.
Head to head by decade
| Decade | Italy | United States | Difference | Ahead |
|---|---|---|---|---|
| 1810s | 0.767 | 0.168 | 0.599 | Italy |
| 1820s | 0.767 | 0.1666 | 0.6004 | Italy |
| 1830s | 0.767 | 0.161 | 0.606 | Italy |
| 1840s | 0.7562 | 0.161 | 0.5952 | Italy |
| 1850s | 0.713 | 0.161 | 0.552 | Italy |
| 1860s | 0.4474 | 0.1768 | 0.2706 | Italy |
| 1870s | 0.3846 | 0.123 | 0.2616 | Italy |
| 1880s | 0.38 | 0.123 | 0.257 | Italy |
| 1890s | 0.3944 | 0.1075 | 0.2869 | Italy |
| 1900s | 0.3946 | 0.092 | 0.3026 | Italy |
| 1910s | 0.3979 | 0.0926 | 0.3053 | Italy |
| 1920s | 0.7278 | 0.1088 | 0.619 | Italy |
| 1930s | 0.944 | 0.099 | 0.845 | Italy |
| 1940s | 0.6104 | 0.0959 | 0.5145 | Italy |
| 1950s | 0.2124 | 0.0937 | 0.1187 | Italy |
| 1960s | 0.166 | 0.1082 | 0.0578 | Italy |
| 1970s | 0.1435 | 0.058 | 0.0855 | Italy |
| 1980s | 0.138 | 0.0516 | 0.0864 | Italy |
| 1990s | 0.1077 | 0.0495 | 0.0582 | Italy |
| 2000s | 0.0993 | 0.0436 | 0.0557 | Italy |
| 2010s | 0.0911 | 0.0449 | 0.0462 | Italy |
| 2020s | 0.1157 | 0.0808 | 0.0348 | Italy |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher political centralization index, Italy or United States?
- Italy, at 0.162 against 0.153 in United States as of 2025.
- What is the difference in political centralization index between Italy and United States?
- 0.009, with Italy ahead.
- How many years of comparable data are there for Italy and United States?
- 211 years are reported by both, from 1815 to 2025.
- How do Italy and United States rank globally for political centralization index?
- Italy ranks 125th and United States ranks 128th of 176 countries.
- Where does this data come from?
- Our World in Data, published as Political centralization index. Statizoid refreshes it automatically from the source and publishes the full history for both places.