"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
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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196 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.
All babysitters shown here are background checked every year. Learn more.
Angela $22 per hour for 1 child
I’m looking to pick up some part-time evening and weekend babysitting in the West Seattle/White Center area. A little about me: • I’m currently an addiction counselor working in the ER in social services (Mon–Fri) • Over 10 years of experience working with children, teens, and adults (ages 9–80) • Licensed through the WA Department of Health • Experienced with kids of all ages—from helping raise my younger siblings to parenting my own teen I’m reliable, calm, and genuinely enjoy spending time with kids—whether that’s playing, helping with homework, or keeping routines consistent with your parenting style. I take safety and professionalism seriously, both on and off the job. Because I work in healthcare, I’ve consistently had Adult, Child, and Infant CPR/First Aid/AED. I graduated with a bachelor’s in behavioral science (close to social work) 6/2025. Starting this fall, I’ll be attending UW for my MSW, and I’m looking to earn some extra income doing something I enjoy. If you or someone you know is looking for occasional or regular childcare, feel free to message me!
Ella $24 per hour for 1 child
Hello! My name is Ella and I am a recent college graduate interested in working with kids! I love babysitting toddlers and kids -- I have previously wrangled little ones moving through summer theatre and dance camps, and I have special skills in working with easily distracted kids and getting them back on track :) I am also available to catsit, dogsit, and housesit upon request!
Marcela $30 per hour for 1 child
Hello, parents!! My name is Marcela — or as the little ones call me, Cela :) I studied psychology in Brazil and spent five years immersed in childcare there before moving to the US, and for almost three years now I've had the joy of caring for two wonderful local families, watching their babies grow from tiny newborns into happy, curious toddlers. I love imaginative play, art and crafts and exploring the world w/ the little ones - parks, libraries, story times. I'm patient, attentive, and genuinely present. I'm a non-smoker, non-drinker, comfortable driving and happy to share references from the families I currently work with. I'd love the chance to meet you and your kiddo! 💛
Andrea $20 per hour for 1 child
Hello my name is Andrea i’m a fourth year pharmacy student trying to find some work where I can. I enjoy working with kids and helping parents get some time off. I typically take care of my nieces and extended family with the ages ranging from 1 to 9 years old and typically cooked, took out to parks and school events. I have a license in CPR/BLS, not specifically for children but I did practice infant cpr. I can help with daily chores, tutoring and cook.
Katie $28 per hour for 1 child
Booked by 1 family in Mercer Island, WA
Hello! My name is Katie. I have been working as a full time nanny for the last 6 years, and babysat for several years prior as well. I have cared for kids aged 4 months to 10 years, and also helped as a household manager- scheduling appointments and running errands. Additionally, I have experience working in a Montessori school/daycare. I would love to chat more and see if I could be a good fit with your family!
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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.
"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
"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
Find a last-minute babysitter in Mercer Island
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Find a last-minute babysitter in Mercer Island
Submit a request to hear from available sitters.
We use email to send essential communication regarding your account.
To sign up with Facebook, we need permission to use your email address.
Sharing your friends list is optional, and allows us to connect you with sitters they book and recommend. Nothing will be shared or posted.
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?
Babysitting rates in Mercer Island vary by experience, number of children, and time of day. See babysitting rates by city.
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.
Resources
Tips for finding last-minute child care
Ideas and strategies for when your plans change and you need a sitter.
How much does a babysitter cost?
See average babysitting rates by city and across the country.
Free printable emergency contacts card
A quick printable card to leave with your sitter in case something unexpected comes up.
