Here is a list of hamfests for 2021, compliments of the ARRL EPA Section Manager, George, W3GWM: 

07/03/2021 – Firecracker Hamfest, ARRL Pennsylvania State Convention
                    Location: Harrisburg, PA
                    Type: ARRL Convention
                    Sponsor: Harrisburg Radio Amateurs Club
                    Website: http://www.W3uu.org

07/04/2021 – Murgas ARC Hamfest and Computerfest
                    Location: Plains, PA
                    Type: ARRL Hamfest
                    Sponsor: Murgas ARC
                    Website: http://hamfest.murgasarc.org

07/17/2021 – Valley Forge Hamfest
                     Location: Phoenixville, PA
                     Type: ARRL Hamfest
                     Sponsor: Mid-Atlantic Amateur Radio Club
                     Website: http://marc-radio.org/hamfest2.htm

07/31/2021 – CVARC 2021 Hamfest
                     Location: Chambersburg, PA
                     Type: ARRL Hamfest
                     Sponsor: Cumberland Valley Amateur Radio Club
                     Website: http://w3ach.org

08/07/2021 – Reading Radio Club Hamfest
                    Location: Sinking Spring, PA
                    Type: ARRL Hamfest
                    Sponsor: Reading Radio Club, Inc.
                    Website: http://www.qsl.net/w3bn/

10/02/2021 – Red Rose Repeater Association Hamfest
                    Location: New Holland, PA
                    Type: ARRL Hamfest
                    Sponsor: N/A
                    Website: http://w3rrr.org

*  More Hamfests may be added to the calendar later.
** Contingent on Covid-19 restrictions