Lenox township
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 36.342
- State:
- Illinois
Lenox township is located in Warren County, Illinois. Lenox township has a 2026 population of 257. Lenox township is currently declining at a rate of -1.53% annually and its population has decreased by -4.81% since the most recent census, which recorded a population of 270 in 2020.
The median household income in Lenox township is $66,000 with a poverty rate of 0%. The median age in Lenox township is 63.3 years: 83.2 years for males, and 61.9 years for females. For every 100 females there are 137.8 males.