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Find nannies in Mercer Island, WA

Connect with nannies loved by families in Mercer Island. Compare experience, references, availability, and rates to find your fit.

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244 experienced nannies in Mercer Island, WA

Families in Mercer Island use UrbanSitter to find full-time, part-time, and live-in nanny care.
107 available this week | Avg weekly rate: $1,096.00/wk

Every nanny is background checked annually and their profile is individually reviewed by our Trust & Safety team. Learn more.

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Eliana 1 review
$40 per hour for 1 child
Booked by 1 family in Mercer Island, WA

Hello! I'm thrilled to introduce myself as a dedicated and experienced childcare provider, eager to contribute to the well-being and development of your precious ones. I’ve nannied for 10+ years. (5 months to 13 years old) I’ve always enjoyed working with children. They are so awesome to be around and full of life. I also have 6 siblings that I helped take care of and cared for as well. ( 2,5,7,13,14,16 ) I’m a proud big sister! Hope to meet you and fulfill your family needs! Thank you :)

“Flexible, engaging and enthusiastic! Eliana was available at a short notice and engaged with my kid pretty actively.”

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Sammie
Booked by 1 repeat family
2 reviews
$24 per hour for 1 child
Booked by 2 families in Mercer Island, WA

Hi, I’m Sammie, and I’m currently offering childcare as well as assistance with household services and pets. I currently work as a teacher at an outdoor school. I have two years of experience as a preschool teacher in an outdoor preschool, and have been working with kids as a teacher, tutor, babysitter, and guide for over ten years. My style of teaching and babysitting is child lead, informed by kids interests and passions. I obviously love involving outdoor play, but also love art, cooking, and other kinds of projects as well.

“She is calm and cheerful and my kids love her! She approaches them at their level and gets them to open up, and they are comfortable with her. Would definitely hire her again.”

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Amia 1 review
$25 per hour for 1 child
Booked by 1 family in Mercer Island, WA

I currently work at a daycare with ages from 4 months-3 years. I also have nannied with ages up to 5. I also have had experience with house sitting and dog watching with multiple dogs at a time.

“Amia was our first non-family babysitter, so we were a little anxious, but she made us feel at ease instantly. She immediately clicked with our daughter and was very tolerant of our crazy dog. Our daughter had a lot of fun and was sad to see her go. We will definitely be using her again!”

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Mayumi 1 review
$30 per hour for 1 child

I’m a Compassionate and experienced nanny with over 6 years of childcare experience supporting families in creating structured, safe, and enriching environments for children of various ages. Adept at managing daily routines, fostering developmental milestones, and building trusting relationships with children and parents. Strong multitasking skills with expertise in household management, educational activity planning, Experience in teaching and practicing Spanish for children, Sweet and friendly with kids and pets, Experience in bottle feed, change diapers, put down to sleep, I actively encourage children to do outdoor activities promoting social and emotional growth. In addition to going to museums, zoos, parks, aquariums and planning play dates with their friends. • Fluent in Spanish (native speaker) and advanced in English

“We are absolutely thrilled with Mayumi and cannot recommend her highly enough! From the moment she started working with our family, it's been clear that she genuinely loves children and takes incredible pride in her work. Her nurturing, thoughtful, and creative approach has made a world of difference in our household. Our children absolutely adore her—she has such a warm and positive energy that they immediately connected with. Mayumi goes above and beyond to make sure they are not only well cared for but also engaged in fun, educational activities. Whether it's arts and crafts, outdoor play, or reading stories, she has an amazing ability to make each day exciting and full of learning.”

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Peneloppe 2 reviews
$25 per hour for 1 child
Booked by 1 family in Mercer Island, WA

A passionate and fun caregiver, former educator for 28 years, babysitter since 1991 :) for infant, toddlers, preschoolers, kinder and Elementary age groups. Love Arts and Music, I am a professional dancer and musician. I have a major in educational psychology, musicology and a dance degree. A teacher trainer certified with DCYF, and CDA. A single mom with an adult daughter and two grand children, 4 and 2 years old. A dog lover and trainer, I have one wonderful Norwegian Elkhound/ Husky . Love taking dogs on a walk, exercise them, play with them and I like cats as well. Looking for occasional or part time babysitting, dog walking, house sitting, dog sitting. Help seniors with offering rides, grocery shopping, companionship. I have a current CPR and FIrst Aid certification. I m located near wedgwood lake city , and have a car and car insurance. I love children, I love sharing my story telling, and play music with them, keep them active, play games, make some arts, dance, have fun, hike, go to the park, or beach or zoo. I m great at setting the children to sleep with my own funny stories and songs and or playing my pan drum.

“Peneloppe is an experienced caretaker and immediately jumped into our routine. She was very engaged with my daughter and I never once questioned my daughter's safety in Peneloppe's care. In addition to arriving early and being an excellent communicator, I appreciated how she cleaned up our play area and was willing to wash bottles and help however she could. We look forward to using Peneloppe's services again in the future!”

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How much does a nanny cost in Mercer Island, WA?

  • Average weekly cost for 1 child: $1,096.00/wk
  • Average weekly cost for 2 children: $1,287.60/wk
  • Part-time nanny weekly cost (1 child): $685.00/wk
  • Typical annual salary for full-time nanny in Mercer Island, WA: $56,992.00/yr

As of October 2026

Recent nanny activity in Mercer Island, WA

Hiring a nanny starts with trust

Every nanny’s profile is individually reviewed by our Trust & Safety team after an annual background check. Read reviews from families in Mercer Island to find your fit.

847 nannies background checked in Mercer Island, WA

4.9 average star rating from total of 4,482 reviews in Mercer Island, WA

photo of quoted parent Amy

"We absolutely LOVE Isa — our family was so fortunate to have found her through UrbanSitter. I'm a first-time mom, and it took me a long time to find a full-time nanny I could trust to care for our sweet infant boy. Our boy connected with her immediately, and we couldn't have asked for anyone else to care for him. Her calming presence was also perfect for parents like us who work from home. We feel so lucky UrbanSitter helped us find someone who has truly become a part of our family."

Amy L., mom of one

photo of quoted parent Kamilah

"I was so stressed about finding a part-time nanny for my 14-month-old son, who has moderate separation anxiety and hadn't been left with anyone but family before, but we were both immediately at ease in Buhay's presence. Her empathy and commitment to understanding child development are apparent in every interaction I've witnessed between her and my toddler. I feel very lucky to have found her."

Kamilah W., mom of one

photo of quoted parent Eric

"Erna watched our now 5 year old daughter and 3 year old son for a few years. She is punctual, responsible, honest, and playful. What we appreciated most was that she was thoughtful in ensuring that we had a little break; for example, when the kids were clingy, she was able to divert their attention with games or songs or walks to the park. We felt very comfortable leaving our kids with Erna because of her caring nature and experience that spans a decade (including being a live-in nanny)."

Eric D., dad of two

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Why families find nannies on UrbanSitter

Nannies loved by the Mercer Island community

Meet nannies with reviews and references from families in your Mercer Island school, neighborhood, and parent groups.

Commitment to trust and safety

Every nanny must clear an annual background check, and each profile is individually reviewed by our team.

More affordable than nanny agencies

No placement fees, just a simple membership. You control the process and interview as many candidates as you like.

Profiles that go beyond the basics

See experience, age groups served, special nanny services like infant care and bilingual abilities, plus ratings from parents.

Frequently asked questions about Mercer Island nanny services

How much does a nanny cost in Mercer Island, WA?

As of October 2026, nannies in Mercer Island typically earn $1,096.00 per week for full-time care with one child, and more for two or more children. Part-time nanny costs in Mercer Island typically range from $685.00 per week. Check profiles in Mercer Island for current rates and experience levels.

How do I find a nanny near me in Mercer Island?

Sign up for free, post your job with your schedule and needs, then browse nanny profiles with experience and reviews from local Mercer Island families. Message candidates, schedule interviews, and hire when you find the right fit. Learn more about how it works.

Are nannies on UrbanSitter background checked?

Yes, every Mercer Island nanny must clear an annual background check, and each profile is individually reviewed by our Trust & Safety team. Learn more about what's included in the background check..

What's the difference between UrbanSitter and a Mercer Island nanny agency?

Nanny agencies in Mercer Island often charge placement fees that can total thousands of dollars. On UrbanSitter, there are no agency placement fees, just a simple membership. You can browse available nannies in Mercer Island, interview candidates, and hire directly.

What types of nannies can I find in Mercer Island?

On UrbanSitter, you can find full-time, part-time, and live-in nannies in Mercer Island. Many nannies offer specialized experience including infant care, nanny sharing, bilingual care, and after school coverage. Browse profiles and filter by experience type to find your fit.

Do I need a nanny contract?

A written agreement helps you and your nanny align on schedule, pay, duties, and time off before the job begins. Many families in Mercer Island use a simple contract to set expectations from day one. See our nanny contract template and guide for what to include.

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