USDA: ReConnect Program

From USDA.Gov's ReConnect Program website:

The Broadband ReConnect Program furnishes loans and grants to provide funds for the costs of construction, improvement, or acquisition of facilities and equipment needed to provide broadband service in eligible rural areas.

For Tribal Governments and Socially Vulnerable Communities

Up to $350M Available

Potential awardees must meet a 100 Mbps symmetrical minimum service requirement in all proposed service areas. The maximum award amount is $35M, and no match is required. The applications are evaluated in a competitive process.