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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513 experienced nannies in Mercer Island, WA

Families in Mercer Island use UrbanSitter to find full-time, part-time, and live-in nanny care.
779 available this week | Avg weekly rate: $1,079.60/wk

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

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Mirna
Booked by 30 repeat families
32 reviews
Bothell
$35 per hour for 1 child
Booked by 50 families in Mercer Island, WA

Hello My name is Mirna and I am 27 years old. I am currently offering my Child Care and Pet Care services. I really enjoy my time with children For which I have been in charge of babies from 6 months to 11 yemás. Usually one of my activities is feeding them, bathing them, preparing meals, putting them to sleep, playing with them and I can teach them some Spanish. I have had more experiences with babies, but I really enjoy time with children of all ages. If you have animals I am also comfortable with that one. I will be happy to talk with you and tell you more about my experience with children.

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Hermela
Booked by 7 repeat families
14 reviews
Lynnwood
$25 per hour for 1 child
Booked by 20 families in Mercer Island, WA

Hi, I’m Hermela! I’ve been babysitting for a couple of years for family and friends. When I’m not babysitting, I work as a seasonal counselor at Steve and Kate’s camp and as a patient care coordinator at a nearby hospital. On my free time, I enjoy hiking, painting, and puzzles. I’m also a student, so I tend to be busier some weeks but I love helping out whenever I can, so feel free to reach out with any questions :)

Hermela was wonderful and we’d love to have her help again in the near future! She stepped in last minute when another scheduled caregiver had a family emergency and wasn’t able to come. She was quick to respond, arrived on time despite a lengthy commute, she was warm, attentive and jumped in to help immediately. I felt fully confidant that my dad with advanced Alzheimer’s was in great hands with her care and competence out and about on outings. I would love to have her watch my two kiddos as well in the future. My dad really enjoyed having her there and I know my kiddos would love working with her too.

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Anna
Booked by 5 repeat families
16 reviews
Seattle
$27 per hour for 1 child
Booked by 20 families in Mercer Island, WA

Hi - My name is Anna and I am a preschool teacher for 3-5 year olds. As a parent, myself, I know what it's like to search for a babysitter. As a teacher, mom, and caregiver I love being with children. I have over 20 plus years of experience working kids, mostly 3-5 year olds. Presently I work at a special education preschool in a inclusive classroom where children of all abilities and backgrounds are present. I have been a caretaker for my family and try to help where I can. I am looking to make extra income this summer for our summer trips and am a great person for last minute sitter options. I am very flexible and can help with pretty much anything you need.

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Lorena
Booked by 17 repeat families
24 reviews
Shoreline
$30 per hour for 1 child
Booked by 35 families in Mercer Island, WA

Hello Families! 👋🏼 My name is Lorena, and I’m originally from Colombia, but I’ve been living here for over six years. I worked as an Au Pair for two years and have been a nanny for the past three. I have experience caring for newborns, toddlers, and children up to teenagers. I truly enjoy spending time with kids—playing, learning, and having fun together! One of my favorite games is hide and seek—it’s always a blast! I’m looking forward to meeting your family and caring for your little ones with love, patience, and creativity. 💛

Great work. Kids really connected with Lorena

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

  • Average weekly cost for 1 child: $1,079.60/wk
  • Average weekly cost for 2 children: $1,269.60/wk
  • Part-time nanny weekly cost (1 child): $674.75/wk
  • Typical annual salary for full-time nanny in Mercer Island, WA: $56,139.20/yr

As of July 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.

938 nannies background checked in Mercer Island, WA

4.9 average star rating from total of 4,949 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

Find the perfect nanny in Mercer Island

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Why families find nannies on UrbanSitter

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 July 2026, nannies in Mercer Island typically earn $400.00 - $3,960.00 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 $250.00 - $2,475.00 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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