Centralia
- County:
- Dubuque County
- County Seat:
- No
- Area (mi²):
- 0.621
- State:
- Iowa
Centralia is a city located in Dubuque County, Iowa. Centralia has a 2026 population of 117. Centralia is currently declining at a rate of -0.85% annually but its population has increased by 0.86% since the most recent census, which recorded a population of 116 in 2020.
The median household income in Centralia is $77,500 with a poverty rate of 0%. The median age in Centralia is 37.3 years: 38.4 years for males, and 34.5 years for females. For every 100 females there are 95.0 males.