Humboldt Hill, California
Area codes 369, 707 · Population: 3,414
Pacific (PT)
California
Pop. 3,414
Area Codes Serving Humboldt Hill
About Humboldt Hill, California
Humboldt Hill is a city in California that is served by area codes 369, 707. The city has a population of approximately 3,414 residents and is located in the Pacific Time Zone.