Federal travelers to Eureka / Arcata / McKinleyville can be paid up to $130 to $181 a night for lodging, depending on the month, plus $86 a day for meals and incidentals. This rate covers Humboldt.
Per diem · FY2027GSA
Eureka / Arcata / McKinleyville, CAHumboldt
$267
a day at most · $181 lodging + $86 M&IE (peak month)