Barr township
- County:
- Macoupin County
- County Seat:
- No
- Area (mi²):
- 36.645
- State:
- Illinois
Barr township is located in Macoupin County, Illinois. Barr township has a 2026 population of 307. Barr township is currently growing at a rate of 0.33% annually but its population has decreased by -1.6% since the most recent census, which recorded a population of 312 in 2020.
The median household income in Barr township is $52,250 with a poverty rate of 38.27%. The median age in Barr township is 50.3 years: 34.7 years for males, and 52.3 years for females. For every 100 females there are 171.8 males.