Harrisburg Flag

Harrisburg

County:
Saline County
County Seat:
Yes
Area (mi²):
6.612
State:
Illinois

Harrisburg is a city located in Saline County, Illinois. Harrisburg has a 2026 population of 7,937. It is also the county seat of Saline County. Harrisburg is currently declining at a rate of -0.7% annually and its population has decreased by -3.83% since the most recent census, which recorded a population of 8,253 in 2020.

7.9K
Total Population
1,200
Density (mi²)
-56 -0.7%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)