Gsa Per Diem Rates 2025 Washington Dc. Washington dc (also the cities of alexandria, falls church and fairfax, and the counties of arlington and fairfax, in virginia; Click on any county for a detailed breakdown of the per diem rates.

The general services administration (gsa) announced per diem rates for fiscal year (fy) 2025, which starts on october 1. And the counties of montgomery and prince.