What could a new data center mean for property taxes in your state?

Estimate the annual property-tax footprint of a major new data center using state- and jurisdiction-level averages. The tool illustrates how added assessed value flows through typical assessment ratios and combined rates.

Pick a state and local jurisdiction, adjust project size and assumptions, and review illustrative results. Optional relief mode shows how a broader tax base can spread a fixed levy across more value.

Multi-state Illustrative only Public-rate basis Select a state

Customize your calculation

Select your state, county, and project parameters. The output is an estimate based on average tax rates and current assessment assumptions for that state.

State

Host county Average property-tax rates for the selected county.

Project size

0.25 GW 2.00 GW 8.00 GW

Assumed taxable value per GW Default is $10 billion per GW. Change it to fit the message you want to test.

Assessment ratio Shown as a percent. Default reflects the commercial ratio assumption for this state.

Optional relief estimate

Existing county net assessed value

Example home value ($) Enter your home's estimated market value. Net assessed value is calculated from the residential ratio for this state.

Net assessed value: $45,000

This mode is intentionally illustrative. It assumes the local levy stays flat and shows how a broader assessed-value base could reduce the share carried by an example property.

Local impact estimate

Annual estimate based on jurisdiction average rates and the project assumptions you choose.

Selected county rate

$0.00

Average property-tax rate per $100 of assessed value.

Estimated assessed value added

Project taxable value multiplied by the assessment ratio.

Estimated annual property tax

Illustrative annual amount tied to the selected county average rate.

Illustrative investment size

Project size multiplied by assumed taxable value per GW.

Messaging notes

Community angle: large new development often adds taxable value; how that interacts with local levies depends on district boundaries, exemptions, and valuation practice.
Affordability angle: the larger the tax base, the less pressure there is to carry the same levy on a smaller group of taxpayers.
Honest framing: this is an estimate, not a promise, because actual tax outcomes depend on tax area, exemptions, valuation, and district-specific details.