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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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Abby
Booked by 3 repeat families
3 reviews
$20 per hour for 1 child
Booked by 3 families in Mercer Island, WA

Hello! My name is Abby. Currently, I am working as a Biology Research Assistant Level One. I am primarily offering in home child care in the evenings after my work day; however, I am offering house sitting on certain occasions. Since I was 15 years old, I have provided evening care for elementary to middle school age children. For the past four years, while attending Stanford University, I've been providing care for infants to middle school age children. Additionally, I have been tutoring for teens in Palo Alto, California. Last, I have 14 nieces and nephews who I absolutely love and am lucky to spend time with!!

“Kids had a wonderful time!”

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Yousra
Booked by 8 repeat families
13 reviews
$32 per hour for 1 child
Booked by 18 families in Mercer Island, WA

Hello beautiful families! My name is Yousra and I’m currently a student at the University of Washington majoring in Geography Information Systems. While I am a full-time student, I love to spend the rest of my time caring for children of all ages! I have a wide variety of experiences starting from the age of 13. I started off watching my younger family members ages 1 - 10 and moving forward, I began caregiving for all ages of children in my neighborhood as well as nearby communities. Once I was in high school, I began tutoring kids ages 6 - 12 in all academic subjects and so forth. Please feel free to let me know if you’d like any additional information regarding my experience with children. In addition to babysitting, I also offer senior care and household services. I’m excited to meet your child along with the rest of your family!

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Zehrah
Booked by 4 repeat families
4 reviews
$25 per hour for 1 child
Booked by 4 families in Mercer Island, WA

I have gained expertise in child care by working with 5+ families consistently with children’s ranging from 10 months-7 years. Through multiple families, I have provided safe and ensured transportation, bottle feedings, meal preparation, and bedtime routines. *I am up to date on all vaccines and am willing to provide proof of all immunizations.*

“Zehrah is the best! She’s professional and reliable, kind and caring and our kids love her. ”

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Priscilla
Booked by 9 repeat families
22 reviews
$35 per hour for 1 child
Booked by 27 families in Mercer Island, WA

Hello! My name is Priscilla and I'm 31 years old. I'm from Brazil, but currently living in Seattle. I have more than 10 years of experience with children ranging 0 - 14 years old. I have worked mostly in nanny share arrangements, with multiple kids. What I love the most about nannying, it’s the long lasting connections I could make with most of them! Each child is unique, and we can learn everyday with them. I'm graduated in Social Communication and I just finished a Masters degree! I am communicative, patient, creative, trustworthy and affectionate. I’d love finding short term contracts. You can check some of my references on my profile. I would love to hear more from you! ☺️

“She was great with our boys!”

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Nadilla
Booked by 25 repeat families
23 reviews
$34 per hour for 1 child
Booked by 42 families in Mercer Island, WA

Hello! I currently have a part time job and I’m looking for some extra jobs. I’ve been working with kids for 3 years now. I worked as a volunteer for a kindergarten class for almost a year, and I took care of 2 boys for 2 years and occasionally babysitting for other families. I have a lot of experience with children in different ages and feel confident about my work.I have a flexible schedule and I’ll try my best to make this work!

“We would definitely book Nadilla again. She’s professional, punctual, and really connected with our daughter.”

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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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