Where data centers can be built, and on what terms.

Calyx tracks the rules cities, counties, states and utilities adopt on data centers: pauses, zoning, power tariffs, water conditions and incentives. Each one is read in its source document and dated. Developers use it to decide where to build. Communities use it to see what others have already done.

Local data center pauses in effect

134 cities and counties in 32 states. Select a state to see its pauses.

Map of the United States shaded by the number of cities and counties with a data center pause in effectAlaska: no local pauses in effectAlabama: 2 local pauses in effectArkansas: no local pauses in effectArizona: 1 local pause in effectCalifornia: 10 local pauses in effectColorado: 7 local pauses in effectConnecticut: no local pauses in effectDistrict of Columbia: no local pauses in effectDelaware: 1 local pause in effectFlorida: 6 local pauses in effectGeorgia: 4 local pauses in effectHawaii: no local pauses in effectIowa: 3 local pauses in effectIdaho: no local pauses in effectIllinois: 4 local pauses in effectIndiana: 5 local pauses in effectKansas: 2 local pauses in effectKentucky: 3 local pauses in effectLouisiana: no local pauses in effectMassachusetts: 2 local pauses in effectMaryland: 8 local pauses in effectMaine: 1 local pause in effectMichigan: 5 local pauses in effectMinnesota: 7 local pauses in effectMissouri: 2 local pauses in effectMississippi: no local pauses in effectMontana: 1 local pause in effectNorth Carolina: 8 local pauses in effectNorth Dakota: no local pauses in effectNebraska: 1 local pause in effectNew Hampshire: no local pauses in effectNew Jersey: no local pauses in effectNew Mexico: no local pauses in effectNevada: 1 local pause in effectNew York: 1 local pause in effectOhio: 21 local pauses in effectOklahoma: 2 local pauses in effectOregon: 4 local pauses in effectPennsylvania: 1 local pause in effectRhode Island: no local pauses in effectSouth Carolina: 6 local pauses in effectSouth Dakota: no local pauses in effectTennessee: 3 local pauses in effectTexas: no local pauses in effectUtah: 1 local pause in effectVirginia: no local pauses in effectVermont: no local pauses in effectWashington: 9 local pauses in effectWisconsin: 2 local pauses in effectWest Virginia: no local pauses in effectWyoming: no local pauses in effect

Point to a state to see its count. Select it to open its pauses in the register.

Counts cities and counties, as of October 16, 2026. State-level pauses and proposals are in the register.

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What we found when we checked

Each finding tests a published number against the government's own records.

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Developers, lenders and insurers

Know what a site can do before you option it: the rules that reach it, what the utility has committed, how long power takes, and which published numbers hold up. Start with a site record at $3,500, or get a signed answer on one site. Lenders and insurers get the same read, dated and sourced, so they can price what is actually there.

Cities, counties and their counsel

See what other jurisdictions have already adopted, with the document and date for each one. The register and the public deliberation framework are free. When a council asks whether a rule has been tried before, the answer is an instrument with a date on it. For a specific site, we will read it and measure it for you, on the same terms as anyone else.

Calyx holds no position on whether data centers should be built. The record reads the same for every reader, whoever pays us.

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