EVsmart - Pepco - King Farm Mattie JT Stepanek Park

Of its 4 ports, 4 are Level 2. Level 2 ports are 240-volt AC chargers, typically used where a car is parked for an hour or more. That is about 17% above the Maryland average of 3.4 ports per station. The registry lists one connector type: J1772, the standard Level 1/2 AC connector. Pricing as reported to the registry: “Free”. The site is listed as a park location.

Rockville has 92 charging stations in the DOE registry with 271 ports, the 3rd-most of 248 cities and towns in Maryland. EVsmart - Pepco - King Farm Mattie JT Stepanek Park accounts for 1% of the charging ports in Rockville. SWTCH runs 9 stations in Rockville. Statewide, Maryland has 1,866 stations and 6,365 ports, the 16th-largest station count of the 51 states and DC. The biggest station in Maryland, Aberdeen Proving Grounds in Aberdeen, has 36 ports.

SWTCH operates 657 stations in the registry across 32 states, with 318 DC fast and 2,390 Level 2 ports in total. 292 of those stations are in Maryland, 16% of the state's 1,866.

“Available” means the station is open and in service according to the DOE registry. Its access code is public, meaning it is listed as open to any driver. It opened on Jul 9, 2025, one of 415 stations in Maryland with a 2025 open date. The station's record was last updated at the source on Feb 2, 2026.