Public EV Charging: Networks, Costs and Etiquette

Short answer: the U.S. passed 250,000 public charging ports at more than 80,000 locations in June 2026, including about 74,000 DC fast-charging ports, according to Department of Energy data reported by EV Infrastructure News. Fast charging typically costs 35-50 cents per kWh, about 11-18 cents per mile: still usually cheaper than gas, but 3-4 times the cost of charging at home.

The two kinds of public chargers

Public Level 2 DC fast charging
Share of U.S. public ports nearly 80% over 20%
Speed about 25 miles of range per hour 100-200+ miles in about 30 minutes
Best for Workplaces, hotels, shopping, overnight Road trips, quick top-ups
Typical price Often free to moderate; varies by host About 35-50¢ per kWh

Port shares and speeds from the AFDC; prices from Recharged’s 2026 benchmarks.

Cost per mile compared

Fuel Price Cost per mile
Home charging 13-20¢/kWh about 3-6¢
Public DC fast charging 35-50¢/kWh about 11-18¢
Gas car, 30 mpg $3.75/gallon about 12.5¢

If you rely only on fast chargers, an EV can cost about as much per mile as an efficient gas car. That’s why home or workplace charging matters so much; see home charging costs and charging when you live in an apartment.

The big networks

  • Tesla Superchargers: the largest fast-charging network, about 38,000 ports, many now open to other brands with the NACS (J3400) connector or an adapter.
  • ChargePoint: the largest Level 2 network, over 76,000 plugs.
  • Newer fast-charging networks such as Ionna and Rivian’s Adventure Network are expanding quickly.

Counts as of mid-2026 per EV Infrastructure News. Use the DOE’s free station locator or your car’s navigation to find stations.

How you pay

  • Per kWh (most common), sometimes with idle fees after charging finishes.
  • Per minute in some places, which favors cars that charge fast.
  • Memberships that lower the per-kWh price for frequent users.
  • Plug and Charge on some cars and networks: plug in and billing happens automatically.

Charging etiquette

  1. Move your car when charging is done; idle fees often apply.
  2. On fast chargers, stop around 80% when others are waiting. Charging slows a lot above that.
  3. Don’t park in a charging spot unless you’re charging.
  4. Report broken chargers in the network app.
  5. Coil the cable neatly and keep connectors off the ground.

FAQ

Do I need many apps? Often one or two plus your car’s built-in app. Many stations also accept credit cards.

Is free Level 2 charging worth using? Yes, at work or while shopping, if it’s convenient. Just follow the etiquette above.

Sources

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