Where The EVs Are – July 2023


EVs by City and County

Notes – There are differences every time we receive a file. In this case, the data do not include electric motorcycles and the handful of fuel-cell vehicles, which is different than in the past. Also, importantly for this post, there are 518 vehicles for which there is no geo record. That is why one of the columns in the bar charts is labeled “(Blank).”


In the map at the top of the post, each bubble is a city, the size of the bubble reflects the number of registered EVs in that city, and the shades of color within the bubble depict the proportion of battery electric vehicles (light blue) and plug-in hybrid vehicles (dark blue).


Fairfield County remains the EV epicenter with 40% of registered EVs. Hartford and New Haven County follow with Hartford slightly higher.

EVs by County July 2023


The top cities remain the same, except that Windsor Locks increased a lot to rank number 8. There is not enough room to display all of the cities or all of the data labels. If anyone would like to know the number for a particular city, please reach out to the EV Club.

EV Count by City

EV Count Trend by City

This is the trend for each city in 6-month intervals from January 2022 through July 2023.

Trend of EVs by City Jan '22 - July '23

Per Capita

There is a change in the per capita rankings with Westport slipping to second, behind the smaller city of Windsor Locks, after being the leader since we started tracking these stats 7 years ago. Smaller cities dominate this ranking.

EVs per Capita by City July 2023

These are the per capita chart filtered for BEVs and PHEVs:

BEVs Per Capita by City in CT July 2023

PHEVs per capita by city in CT July 2023

EV Count by Make within City

We are again able to track this. It is a dense chart that is complicated to see in a screen shot. At least it is colorful! Again, space is a limitation, both in the number of cities that can be displayed as well as the number of makes in the legend. The large red part of the bar is obviously Tesla. If anyone is looking for specific information, let us know. The chart itself displays some of the makes, but above the chart is all of the makes/colors.

Make Legend 1


Make Legend 2


Make Legend 3



EV Count by Make Within City July '23

Below are two variations on the above chart – BEV by make within city and PHEV by make within city. It tracks more or less socio-economically with the BEV-heavy cities being the more affluent towns.

BEV Count by Make Within City July 2023

PHEV Count by Make Within City July 2023


5 thoughts on “Where The EVs Are – July 2023”

  1. Thank you for all the work and great data insights.

    One trending topic on the national level is the % of new reg that are BEV or PHEV as compared to the total. I was curious if the top towns are getting to new vehicle EV adoption of >20% as with CA.

    This site sometimes has that type of data but I didn’t see the market share data or total on-the-road proportion. https://afdc.energy.gov/data/10962

    • I have new EV registrations by town, not yet published, and EVs as a % of total vehicles by town, also not yet published, but I don’t have a denominator for all newly registered vehicles. Other items will be published within the next week or so.

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