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Find a last-minute babysitter in Mercer Island, WA

Need a sitter on short notice? Mercer Island families find trusted, background checked babysitters on UrbanSitter.

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197 available last-minute babysitters in Mercer Island, WA

Families in Mercer Island use UrbanSitter for last-minute date nights, schedule changes, backup care, and same-day babysitter needs.
123 available today | Avg hourly rate: $27.37/hr

All babysitters shown here are background checked every year. Learn more.

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Alicia
Booked by 133 repeat families
201 reviews
$27 per hour for 1 child
Booked by 303 families in Mercer Island, WA

Hi, My name is Alicia! I've been babysitting for 10 years now and it never feels like work to me because it's always fun! I've babysat kids in all different age groups, from 8 months to 10 years old. My favorite things to do while babysitting are going to the park, coloring, reading books, playing outside games, like tag. Pretty much anything to stay active and have fun.

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Jessica
Booked by 10 repeat families
17 reviews
$28 per hour for 1 child
Booked by 25 families in Mercer Island, WA

Hello! My name is Jessica. I’m 26 and have been a preschool teacher since 2022. I am currently available on occasional evenings or on the weekends. I enjoy following children’s interests, acting playful and silly, and being actively engaged in their play. I love being a part of children’s learning and development, and seeing them express their unique personality! I always strive to connect with each child and make them feel safe, loved, and valued. My favorite activities to do with children are arts and crafts, pretend play, outdoor play, reading, puzzles, board games, and playing hide and seek. I also have experience working with toddlers and elementary-aged kiddos — providing care, tutoring, and leading developmentally-appropriate activities. Through UrbanSitter, I have cared for children from 2-11 years old. You can always expect clear communication, safety and entertainment for your child, and respect of your house rules and expectations. Feel free to reach out, I’m excited to get to know you!

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Grace
Booked by 119 repeat families
175 reviews
$30 per hour for 1 child
Booked by 260 families in Mercer Island, WA

Hi I'm Grace. I grew up in Indiana, I've been in WA for about 8 years now. I've always taken care of children, of all ages. I've taken care of newborns to pre-teens. I’ve been babysitting through UrbanSitter for a while now and I’m pretty experienced with all age ranges.

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Dina
Booked by 10 repeat families
9 reviews
$25 per hour for 1 child
Booked by 23 families in Mercer Island, WA

I'm a retired homemaker who has successfully raised three kids in this area. I live with my husband and 2 small dogs in Bellevue. We have three grandchildren under the age of 12, they live locally and we see them frequently! I love kids, people and pets and I like to help. I have many years experience as a parent, and have experience being a grandparent too. I can sit, tutor, play and cook. I enjoy running errands and I take direction well. Kids like me, and I'm good with babies too. In my spare time I enjoy reading, baking, board games, shopping, walking the dogs and babysitting.

“Dina was very professional and great with consoling my 3 week old newborn and spending time with my 3 year old. He really loved talking with her and was sad for her to go. It was so nice to have her help!”

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Diana
Booked by 2 repeat families
6 reviews
$30 per hour for 1 child
Booked by 10 families in Mercer Island, WA

Hi family! I’m Diana – an energetic, kind, and experienced nanny and teacher who genuinely loves working with kids of all ages. With over six years of experience in education and childcare, I bring a blend of patience, organization, and a fun-loving attitude to every family I work with. I’m a graduate teacher and have worked with children ranging from 2 months to 6 years old in both classroom and home settings. I started babysitting my niece and nephew. I took care of a wonderful family with three children (now 2, 4, and 6 years old) for two years, helping with everything from morning routines and after-school activities to meals and bedtime. I’m currently caring for a 7-month-old baby, which has further deepened my experience with infants. I love spending time outdoors with children—whether it’s walks, playdates, or playground adventures—and I always try to nurture their creativity through art and craft projects. I’m CPR and First Aid certified and always strive to create a safe, supportive, and engaging environment for kids to thrive. I’m excited to continue supporting families in my area and would love to connect! Feel free to reach out, Diana

“Diana was prompt, kind, and played lots of arts and crafts etc with my 4yo, and very understanding when we ran a bit late. My daughter had a great time!”

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How much does a last-minute babysitter cost in Mercer Island, WA?

  • Average hourly rate for 1 child: $27.37
  • Average hourly rate for 2 children: $32.16
  • Typical job length: 5.7 hours
  • Most requested times: Morning

As of October 2026

Recent babysitter activity in Mercer Island, WA

Trust matters, especially on short notice

Babysitters on UrbanSitter are background checked every year, with every profile individually reviewed by our Trust and Safety team.

864 sitters background checked in Mercer Island, WA

4.9 average star rating from total of 4,483 reviews in Mercer Island, WA

photo of quoted parent Marie

"Amina came and helped us out when our babysitter canceled last minute. She was great with our kids. Even our 11 month old son who has stranger anxiety warmed up to her."

Marie C., parent

photo of quoted parent Jenny

"She was so flexible and came last minute to help out. The house was really neat when I got home and both kids were asleep. Two thumbs up!"

Jenny S., parent

photo of quoted parent Jesse

"Thrisa was amazing! Came over last minute and took amazing care of our 11 month old - including bedtime - she's coming back tomorrow :)"

Jesse D., parent

Family with caregiver

Find a last-minute babysitter in Mercer Island

Submit a request to hear from available sitters.

Why Mercer Island families choose UrbanSitter for last-minute child care

Quick responses when plans change

In most cities, average response time for last-minute requests is under two minutes.

Recommended by Mercer Island families

See which babysitters have been hired by parents at your child's school, preschool, or neighborhood in Mercer Island.

Background checked, every year

Every babysitter clears an annual background check, offering peace of mind even on short notice.

Read reviews, then decide

See parent reviews, repeat families, and average response times to find the right fit fast.

Frequently asked questions about finding a last-minute babysitter in Mercer Island

How do I find a last-minute babysitter in Mercer Island?

Sign up on UrbanSitter, enter your zip code, and submit a request with your timing and care needs. Babysitters near Mercer Island who are available can respond to your request. Before choosing, you can view profiles, parent reviews, and shared connections.

How much does a last-minute babysitter cost in Mercer Island?

As of October 2026, the average babysitting rate in Mercer Island is $27.37 per hour for one child. Rates vary by experience, number of children, and time of day. See babysitting rates in Mercer Island.

Are babysitters on UrbanSitter background checked?

Yes. Every babysitter on UrbanSitter completes an annual background check. You can also read reviews from Mercer Island families and see shared connections before you book. See what's included in the background check.

Can I find a same-day babysitter in Mercer Island?

Same-day requests are common on UrbanSitter. Submit a request with your timing and care needs, and available sitters in Mercer Island can respond. In most cities, the average response time for urgent requests is under two minutes.

Should I pay more for a last-minute babysitter?

Some parents offer a slightly higher rate for last-minute or same-day requests, but it is not required. On UrbanSitter, rates are set by individual babysitters. You can see each babysitter's hourly rate on their profile before you book.

What if I need a babysitter last minute today?

To find a last-minute babysitter today, share your timing and care needs on UrbanSitter. Available babysitters in Mercer Island can respond, and you can review profiles before choosing.

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