
Lilbourn
- County:
- New Madrid County
- County Seat:
- No
- Area (mi²):
- 0.946
- State:
- Missouri
Lilbourn is a city located in New Madrid County, Missouri. Lilbourn has a 2025 population of 888. Lilbourn is currently declining at a rate of -2.2% annually and its population has decreased by -10.3% since the most recent census, which recorded a population of 990 in 2020.
The average household income in Lilbourn is $62,565 with a poverty rate of 26.93%. The median age in Lilbourn is 35.5 years: 36.7 years for males, and 33.9 years for females.