California Deep Dive

EV charging analytics across California.

Choose counties and a year to compare month-by-month plug and station growth.

Year Plugs Type

California totals are shown until counties are clicked. Selected counties are shown in orange.

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Total CA Stations

All counties

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Total CA All plugs

All counties

County selector — choose up to 4 counties Selected: —

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Click counties to compare. Click again to remove a county.

California Data Analysis

County-level & network insights

Explore CA station totals, monthly trends, and county-level plug and station growth.

Total All plugs — Cumulative

Cumulative plugs for the selected counties.

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Monthly Growth — All plugs

Month-over-month additions of plugs derived from cumulative county totals.

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California EV Efficiency Ratios

Plugs per 1,000 EVs and EVs per plug

Statewide yearly trends aggregated from county-level Back4App data, 2014–2025.

All plugs per 1,000 EVs

Calculated from total plugs divided by EVs, statewide.

EVs per plug

Calculated from EVs divided by total plugs, statewide.

California EV Network Share

Filtered to California and the latest available month.

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California County Leaderboard

Top 10 counties by charging stations

Ranked by total charging stations in the latest available county summary.

Top 10 California Counties