| Place Name | Lamoni |
| Place Type | City |
| ZIP Code(s) | 50140 |
| County | Decatur County |
| Area Code(s) | 641 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 2,708 |
| Population Growth Rate (2010-19) | -15.28% |
| Majority Ethnicity | White 86.06% |
| US Congressional District(s) | Iowa 2nd |
| State House Districts | 27 |
| State Senate Districts | 14 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 86.06% |
| African American | 5.4% |
| Hispanic | 0.22% |
| Asian | 1.71% |
| Native American | 0.67% |
| Hawaiin/Pacific Islander | 5.94% |