City Rankings & Insights
This page ranks banks in OAK BROOK, ILLINOIS by Efficiency Ratio for the 2025Q1 period. Values are reported in percentage terms as of 2025-03-31. Use the table below to review institutions and click any bank to open its detailed call‑report profile.
- Average: 61.22%
- Median: 61.22%
- Min / Max: 57.06% — 65.37%
Top banks by Efficiency Ratio in OAK BROOK
| Bank | Efficiency Ratio |
|---|---|
| REPUBLIC BANK OF CHICAGO | 65.37% |
| EVERGREEN BANK GROUP | 57.06% |