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Map & Community
Uniquely named Mars Borough is located in Adams Township in the southern region of Butler County. The borough has a total area of 0.5 square miles, which consists entirely of land.
Located just outside of Cranberry Township, Mars is a convenient place to live. Mars is only 25 miles north of Pittsburgh and 16 miles southwest of Butler
Samuel Parks was the first to build on the land in 1873. First came a water-powered gristmill that was situated along Breakneck Creek, then Parks decided to have a post office established in his home. With the help of his friend Samuel Marshall, the post office came to be and was named “Overbrook”. Then in 1877, the Pittsburgh, New Castle and Lake Erie Railroad was built through the area and a station was built, but at that time there was already a station named “Overbrook”, so the community was renamed Mars. In 1895, Mars was officially incorporated as a borough.
There are two theories behind how Mars acquired its unique name, though neither have been proven true. One theory is that it is a shortened version of its co-founder’s name, Samuel Marshall. Another theory is that it was Samuel Parks’ wife that loved astronomy and gave the borough its name.
A few fun facts about Mars:
- The USS Mars, a ship in the United States Pacific Fleet in 1963, was named after the borough. It was decommissioned in 1998, but the bell of the ship now serves as a memorial located in the downtown park.
- 1996 comedy film Kingpin and 1988 comedy-drama film The Prince of Pennsylvania were both filmed throughout the borough.
- The album “Mars, Pennsylvania” by musician John Southworth was named after the borough.
- In 2011, students from Mars Elementary School were invited by The Walt Disney Company to attend the premiere viewing of the movie “Mars Needs Moms”.
Mars Borough website: