In the last week, 22 large, fast-moving wildfires in Northern California have burned more than 215,000 acres, killed at least 41 people and destroyed around 5,700 homes and commercial structures.

While nearly 11,000 firefighters have helped partially contain many of the blazes, the crisis is far from over: At least 40,000 people remain evacuated. Its unclear when theyll be able to return home, and some have no homes to return to.

In light of the ongoing disaster, heres how you can help:

If you live farther away, or would prefer to donate money:

Charitable organizations almost always prefer cash donations over donations of physical goods because theyre faster, more efficient and can be used to purchase whatever is needed. Before you donate, look at the California Office of the Attorney Generals charities website to ensure youre not falling for a scam.

The following is a list of charities compiled by CaliforniaVolunteers , a government-run office that coordinates volunteer opportunities in the state:

• Northern California Fire Fund (Northern California Grantmakers)
  Serving Northern California

• Northern California Fire Fund (Silicon Valley Community Foundation)
  Serving Northern California

• The Salvation Army
  Serving Northern California

• Community Foundation of Mendocino County: Disaster Fund Donation Page
  Serving Mendocino County

• Community Foundation Sonoma County: Resilience Fund Donation Page
  Serving Sonoma County

• Napa Valley Community Foundation: Fire Donation Page
  Serving Napa County

• United Way Bay Area
  Serving Napa County

• United Way of the Wine Country
  Serving Humboldt, Lake, Mendocino and Sonoma Counties

• North Bay Fire Relief Fund
  Serving Lake County

• North Coast Opportunities
  Serving Lake County

• American Red Cross
  Serving all counties

• Center for Volunteer and Nonprofit Leadership
  Serving Napa and Sonoma Counties

If you live in or near the affected region:

California Airbnb hosts can sign up here to offer free housing to evacuees and relief workers. So far, just under 750 hosts have answered the call.

Consider donating nonperishable goods to a food pantry. Heres a list of food pantries in Napa County, food pantries in Yuba County and food pantries in Sonoma County .

If you live in or near Sonoma and are willing to volunteer, you can register to do so at the Sonoma Community Center , which is open 9 a.m. to 5 p.m.

Those in or near Napa willing to volunteer are being asked to sign up and create a profile with the Center for Volunteer and Nonprofit Leadership.

You could also foster an animal . Hundreds of pets have been evacuated from animal shelters in the affected region, leading to crowded facilities elsewhere. Check with your local animal rescue facility NBC Bay Area has a great list of them here to see how you can help.

If youre in the region of the Tubbs Fire (including Lake, Sonoma and Mendocino counties), join the Tubbs Fire Facebook Group , where people are coordinating requests and offers for help.