| Place Name | Irena |
| Place Type | Village |
| ZIP Code(s) | 64456 |
| County | Worth County |
| Area Code(s) | 660 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 10 |
| Population Growth Rate (2010-19) | -22.22% |
| Majority Ethnicity | White 94.12% |
| US Congressional District(s) | Missouri 6th |
| State House Districts | 1 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.12% |
| African American | 0% |
| Hispanic | 5.88% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |