Sonoma County officials expanded the Kincade Fire evacuation area Sunday morning to include northeast Santa Rosa, Sebastopol and most of the western part of the county, doubling the number of people under mandatory evacuation order.

The expanded evacuation area includes all areas west of Highway 101 and north of Highway 12, bringing the total ordered to evacuate to 185,000, according to county spokeswoman Meda Freeman at the Sonoma County Emergency Operations Center.

Approx 180,000 people under evacuation order due to #KincadeFire. This is the largest evacuation that any of us at the Sheriff’s Office can remember. Take care of each other. — Sonoma Sheriff (@sonomasheriff) October 27, 2019

The new evacuation areas include areas of Santa Rosa scorched by the deadly Tubbs Fire, including the Fountaingrove and Coffey Park neighborhoods.

Previously, residents in Healdsburg, Windsor and communities along the Highway 101 corridor were ordered to evacuate Saturday, along with residents in western Mendocino county.

Evacuation centers

Sonoma County officials announced the following evacuation centers:

Santa Rosa Veterans Memorial Building

1351 Maple Ave., Santa Rosa

Petaluma Fairgrounds

100 Fairgrounds Dr.

Petaluma Veterans Building

1094 Petaluma Blvd S.

Petaluma Community Center

320 N McDowell Blvd.

Sonoma County Fairgrounds (Large animals only)

1350 Bennett Valley Rd., Santa Rosa

Bus service

Evacuation bus service is being provided at the following locations:

Home Depot and Walmart Parking Lot

Shiloh Road and Hembree Lane, Windsor

New Song Church

167 Arata Lane, Windsor

Joe Garofoli and Steve Rubenstein are San Francisco Chronicle staff writer. Email: jgarofoli@sfchronicle.com, srubenstein@sfchronicle.com Twitter: @joegarofoli, @SteveRubeSF