Mars Flag

Mars

County:
Butler County
County Seat:
No
Area (mi²):
0.47
State:
Pennsylvania

Mars is a borough located in Butler County, Pennsylvania. Mars has a 2026 population of 1,415. Mars is currently declining at a rate of -0.56% annually and its population has decreased by -3.08% since the most recent census, which recorded a population of 1,460 in 2020.

1.4K
Total Population
3,008
Density (mi²)
-8 -0.56%
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)