How many EV charging stations are in Johnson County, IA?

Johnson County has 4 publicly accessible EV charging stations with 16 ports, including 6 DC fast chargers and 10 Level 2 ports.

Which towns in Johnson County have EV charging?

Smaller towns in Johnson County with EV charging include North Liberty, Solon. Each is listed below with its full station detail.

What is the EV charging outlook for Johnson County?

38% of Johnson County's charging ports are DC fast chargers and 63% are Level 2.

Verified · Jun 28, 2026

EV Charging in Johnson County, Iowa

4 charging stations across Johnson County — 6 DC fast chargers and 10 Level 2 ports spread across 2 smaller towns.

Infrastructure Grade

38% DC Fast

Based on DC Fast Charger ratio

6 of 16 ports

How is this graded?

Based on DC Fast Charger ratio:

A: 40%+ DC Fast ports
B: 30–39%
C: 20–29%
D: 10–19%
F: Under 10%

Learn about charging levels

Density Metrics

Total Stations 4

Ports per Station 4.0

Data Status

Current

Last updated: Jun 30, 2026

Data sourced from U.S. DOE AFDC

Explore national charging data & charts →

97% working at Iowa · verified Jun 7, 2026

Cheapest Time to Charge an EV in Johnson County Today

The cheapest, greenest grid window across Johnson County today is 2 AM – 5 AM CDT, based on MISO day-ahead wholesale prices. There's also a midday solar dip around 9 AM – 12 PM. On a time-of-use plan, your off-peak rate runs about ~12 AM - 6 AM.

Cheapest grid window

2 AM – 5 AM

CDT · MISO

Midday solar dip

9 AM – 12 PM

When solar output peaks

TOU off-peak anchor

~12 AM - 6 AM

Works on any time-of-use plan

Wholesale day-ahead prices via the open-source gridstatus library, refreshed daily. Compare every US grid region →