1500 Jefferson St Building (btwn 16th Ave SE and Jim Moore Memorial Pkwy) on the the capitol campus in Olympia, Washington has a well room where nursing mothers can express breast milk or breastfeed their infants. It's not a dedicated nursing room, but it serves as a good spot to go if you want privacy to breastfeed or breastpump.
This nursing mom area is located in Wellness room in south link hall between conference center and café.
Amenities include: Recliner, small table, soft lighting, sink and mirror. Turn latch with "in use/available" flag on exterior knob No special directions for access to the room.
Note: Report mom-shaming or harassment while nursing in public or near lactation rooms (breastfeeding rooms), at Moms Pump Here mobile site https://www.momspumphere.com