Kidder
- County:
- Caldwell County
- County Seat:
- No
- Area (mi²):
- 0.402
- State:
- Missouri
Kidder is a city located in Caldwell County, Missouri. Kidder has a 2026 population of 272. Kidder is currently declining at a rate of -0.73% annually but its population has increased by 1.49% since the most recent census, which recorded a population of 268 in 2020.