How many data centers are in Connecticut?

Aterio tracks 40 data centers in Connecticut: 7 operational, 1 announced and 32 land bank, delayed, withdrawn or cancelled.

How much power will data centers in Connecticut require?

Operational, under construction and announced data centers in Connecticut add up to an estimated 54 MW of power capacity.

How does Connecticut rank nationally for data centers?

45th of 50 states and DC by pipeline capacity, with less than 1% of the US total of 620,802 MW.

Which county in Connecticut has the most data center capacity?

Fairfield County, with an estimated 50 MW across 4 projects.

How many data centers are under construction in Connecticut?

Aterio tracks no data centers under construction in Connecticut.

Market brief, Connecticut

Data Centers in Connecticut

Connecticut ranks 45th nationally for data center pipeline capacity, with 54 MW across 8 projects.

By the Aterio data team. Data as of Nov 5, 2026.

Scale

Data centers tracked: 40
Data center capacity*: 54MW
Data center space*: 710,400sq ft
Average operational size: 101,486sq ft

Pipeline by stage

In the pipeline: 8
Operational: 7
Under construction: 0
Announced: 1

* Pipeline only: operational, under construction and announced projects. The other 32 tracked projects are land bank, delayed, withdrawn or cancelled.

How Connecticut compares

In Connecticut, 88% of projects are already operational, against 29% nationally. Announced projects make up 13% of the total, below the national 60%.

Top states by estimated MW	Est. MW	Facilities
1.Texas	152,858 MW	1,445

2.Virginia	65,512 MW	1,080

3.Utah	46,575 MW	236

4.Pennsylvania	35,641 MW	426

5.Georgia	32,649 MW	466

45.Connecticut	54 MW	8

Top five states by pipeline capacity, and Connecticut, estimated MW.

Where it is being built

Fairfield County alone holds 93% of the Connecticut pipeline, 50 MW across 4 projects.

Top counties by estimated MW	Est. MW	Facilities
1.Fairfield County	50 MW	4

The one county with three or more projects, by estimated MW.

From the dataset

Largest data centers in Connecticut

Ranked by estimated capacity. Each facility's power and size are available in the full dataset.

1.NYM5 Norwalk Data CenterCyrusOne · Norwalk, Fairfield County Operational
2.New York HVN10 Data CenterDigital Realty · Trumbull, Fairfield County Operational
3.Enterprise Data Center 2 NoVaCarter Funds · Trumbull, Fairfield County Operational
4.NYM10 Stamford Data CenterCyrusOne · Stamford, Fairfield County Operational
5.Hartford 1 Data CenterLumen · Hartford, Hartford County Operational

Frequently asked questions

: Aterio tracks 40 data centers in Connecticut: 7 operational, 1 announced and 32 land bank, delayed, withdrawn or cancelled.
: Operational, under construction and announced data centers in Connecticut add up to an estimated 54 MW of power capacity.
: 45th of 50 states and DC by pipeline capacity, with less than 1% of the US total of 620,802 MW.
: Fairfield County, with an estimated 50 MW across 4 projects.
: Aterio tracks no data centers under construction in Connecticut.

Data centers in other states

US Data Centers: Market Analysis & Growth Forecast

Get exclusive insights on the rapidly expanding US data center market, with detailed analysis of facilities, power capacity and strategic expansions across Connecticut and the rest of the US.