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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506 experienced nannies in Mercer Island, WA

Families in Mercer Island use UrbanSitter to find full-time, part-time, and live-in nanny care.
702 available this week | Avg weekly rate: $1,080.80/wk

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

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Kenan
Booked by 17 repeat families
17 reviews
Seattle
$30 per hour for 1 child
Booked by 60 families in Mercer Island, WA

Hi, my name is Kenan. I have been a babysitter and nanny for over five years, and I love caring for newborns and toddlers. In addition to childcare, I offer household services, including cooking, cleaning, and running errands such as grocery shopping. I am also available as a household assistant to help keep your home organized and running smoothly. I am certified in CPR and First Aid and have completed 75 hours of training.

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Leslie
Booked by 11 repeat families
12 reviews
Seattle
$29 per hour for 1 child
Booked by 14 families in Mercer Island, WA

Hi! I am a proactive, joyful, and hands-on caregiver with over 9 years of experience working with children from 6 months to 15 years old. I like to think that I bring more than just childcare, I bring intention. My approach focuses on helping kids build independence, confidence, and self-esteem through routines, choices, and age-appropriate responsibility. I grew up as a scout, so I’ve been leading, mentoring, and engaging with children from a young age. I’m calm under pressure, firm yet kind when setting boundaries, and always thinking one step ahead. I believe in open communication with parents and love collaborating on what works best for each child’s needs and personality. I’m also happy to share my native Spanish and basic French with kids in fun, natural ways. I’m CPR and first-aid certified, fully vaccinated, and comfortable with pets. Happy to talk more with you!

Leslie was fantastic! She was with us for a full week taking care of our 1 1/2 year old. He loved her. She had so many fun ideas of crafts and things to do together. They made cookies together even! She was great at asking questions and communicating with us. We would highly recommend working with Leslie!!

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Nina
Booked by 4 repeat families
8 reviews
Seattle
$30 per hour for 1 child
Booked by 13 families in Mercer Island, WA

Hi, my name is Nina and I moved up here about a year ago from Florida, now I’m in school for nursing. I’m available for babysitting, senior care, and house services. Im just looking for side work to help pay for school. Back home I was teaching kids at children’s church ages 2-10. Also I did baby sit a few kids after church at their houses per the parents request (ages 3,7, and 10). I’ve grown up mainly around older people and enjoy spending time with them as well. My grandparents run a cleaning business back home which I helped with a lot too if other services are needed. Right now I work at Seattle children’s hospital and at a clinic for children on the spectrum. I also have a lot of back ground volunteering in SPED classrooms and ASD clinics. Since I work in a clinical setting I am CPR, BLS, FIRST AID, AND CPI certified. Overall I’m really into music, reading, and the arts. So I always find something fun to do with the kids whether it’s just dance, teaching instruments, drawing, karaoke, teaching a card games, helping with homework, or reading them a story! I like cook for my siblings and other kids I have babysat, so if needed I can cook as well.

Nina was great at playing with our toddler

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Rosemary
Booked by 7 repeat families
8 reviews
Tacoma
$22 per hour for 1 child
Booked by 14 families in Mercer Island, WA

Hi! My name is Rosemary, but I also go by “Rose-berrie,” a playful nickname given to me by the children I’ve cared for. I’m 25 years old and have experience working at a children’s learning center in the Seattle area, where I’ve cared for infants, toddlers and preschoolers. As the youngest of a large family of six, I have also cared for my nephews (ages ranging from newborn to 4 years old), which has shown me firsthand how valuable a reliable helping hand can be for new mothers. I’ve also cared for little cousins, as well as the children of family friends and neighbors, since I was 15. Through my journey in child care, I’ve developed a genuine passion for working with kids and building strong relationships with parents. My experience, both in professional child care settings and with family, has given me skills in leading crafts, engaging in floor play, preparing meals, and keeping daily routines running smoothly. I take pride in creating a safe, happy, and engaging environment where children feel loved and supported. I am currently majoring in Early Childhood Development in college and working toward becoming a preschool teacher. Watching children learn, grow, and express their unique personalities is the most rewarding part of what I do. In addition to child care, I’m also experienced in household assistance. I have my own reliable transportation and bring warmth, professionalism, and a strong work ethic to every family I work with. I would love the opportunity to meet your family and provide care that makes life easier for you and your little ones.

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

  • Average weekly cost for 1 child: $1,080.80/wk
  • Average weekly cost for 2 children: $1,271.20/wk
  • Part-time nanny weekly cost (1 child): $675.50/wk
  • Typical annual salary for full-time nanny in Mercer Island, WA: $56,201.60/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.

926 nannies background checked in Mercer Island, WA

4.9 average star rating from total of 4,899 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

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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