Howard County Gateway 4

Of its 2 ports, 2 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 41% below the Maryland average of 3.4 ports per station. The registry lists one connector type: J1772, the standard Level 1/2 AC connector.

Columbia has 100 charging stations in the DOE registry with 266 ports, the 2nd-most of 248 cities and towns in Maryland. Howard County Gateway 4 accounts for under 1% of the charging ports in Columbia. ChargePoint runs 73 stations in Columbia. 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.

The largest US charging network by station count — mostly Level 2 at workplaces, retail and municipal sites. ChargePoint operates 48,998 stations in the registry across 52 states, with 5,017 DC fast and 83,427 Level 2 ports in total. 659 of those stations are in Maryland, 35% 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 Mar 21, 2023, one of 257 stations in Maryland with a 2023 open date. The station's record was last updated at the source on Oct 12, 2026.