Welcome to Tres Rios Elementary School

Welcome to Tres Rios Elementary School, home of the Pumas! We are a K- 8 school in the Littleton Elementary School District #65. Located in Tolleson, Arizona, approximately 18 miles west of downtown Phoenix, we enjoy a friendly, family-oriented, small town atmosphere.

At Tres Rios we believe in the development of learning communities, and that every child can and will learn if provided an appropriate environment. We are committed to providing the tools to help our students be healthy, successful, lifelong learners. We offer a variety of programs to meet the needs and interests of our students, including an athletic program, special education, a band program and gifted program, as well as state-of-the-art technology.

We recognize the value and importance of parent/guardian participation in a child’s education and welcome your involvement. We have provided several ways to help you stay connected, including a Facebook page, Twitter, and this website. We thank you for your interest in our school and for supporting your child(ren), as we work together to educate and prepare our most precious assets, our children, to take on the world!

Thank you now enrolling School Starts

A Message from our Principal

Tres Rios Families,

Welcome back! I hope you had a great summer and enjoyed some much needed rest and relaxation. I am excited to kick off the 2016-2017 school year at Tres Rios! This year we are beginning our focus on service learning. Our theme for the year is Linking Learning to Life. We are going to fill this year with experiences that bring our students closer to their community and provide a real context for learning. It is going to be a wonderful school year, and I look forward to working with all of you!

Karen Grose

Mrs. Karen Grose
Principal and Treasure Hunter
Tres Rios Elementary School


Quick Links
What's New
School Lunch

The Nutrition Department is excited to welcome you back to school! Read more >>>


 
2016-2017 School Hours

Check out the 2016-2017 school hours. Read more >>>


 
2016-2017 Parent Information

It's that time of year, once again! We want to keep you informed with everything you need to know for the new school year. Please take a moment to view our parent information letter.


 
Transportation Information

Transportation information has been mailed to all eligible students. As you are aware, this year Littleton families were empowered to choose a school based on program. Read more >>>


 
PTSA Meeting

Mark your calendar for our first PTSA meeting on August 11, 2016, at 4:15 p.m. It is going to be a great year!


 
Summer Food Program

Please take a moment to view our summer food program information. We have given details regarding dates and times for meals throughout the district over the course of the summer. Read more >>>


 
Enrollment for 2016-2017

We now have enrollment information available for the 2016-2017 school year. Read more >>>


 
Tax Credit Information

Reduce your Arizona state tax by contributing to Littleton Elementary District schools! Read more >>>


 
Art Education Page

We have a new district Art Education page. We will be adding new things to the page in the coming weeks, so visit often.

Check out our new Art Education page here! Read more >>>


 
Tax Credit Gifts and Donations

Our students depend on the generosity of our community to fund many of our extracurricular programs. We hope you will consider making a tax credit donation. You can read all about it on our District site. We all win!


 
Let's Get Connected

Got Facebook? Do youTweet? Always be in the know with the latest information on Tres Rios! Read more >>>


 
School Lunch

The Nutrition Department is excited to welcome you back to school! Read more >>>


 
2016-2017 School Hours

Check out the 2016-2017 school hours. Read more >>>


 
2016-2017 Parent Information

It's that time of year, once again! We want to keep you informed with everything you need to know for the new school year. Please take a moment to view our parent information letter.


 
Transportation Information

Transportation information has been mailed to all eligible students. As you are aware, this year Littleton families were empowered to choose a school based on program. Read more >>>


 
PTSA Meeting

Mark your calendar for our first PTSA meeting on August 11, 2016, at 4:15 p.m. It is going to be a great year!


 
Summer Food Program

Please take a moment to view our summer food program information. We have given details regarding dates and times for meals throughout the district over the course of the summer. Read more >>>


 
Enrollment for 2016-2017

We now have enrollment information available for the 2016-2017 school year. Read more >>>


 
Tax Credit Information

Reduce your Arizona state tax by contributing to Littleton Elementary District schools! Read more >>>


 
Art Education Page

We have a new district Art Education page. We will be adding new things to the page in the coming weeks, so visit often.

Check out our new Art Education page here! Read more >>>


 
Tax Credit Gifts and Donations

Our students depend on the generosity of our community to fund many of our extracurricular programs. We hope you will consider making a tax credit donation. You can read all about it on our District site. We all win!


 
Let's Get Connected

Got Facebook? Do youTweet? Always be in the know with the latest information on Tres Rios! Read more >>>


 
School Lunch

The Nutrition Department is excited to welcome you back to school! Read more >>>


 
2016-2017 School Hours

Check out the 2016-2017 school hours. Read more >>>


 
2016-2017 Parent Information

It's that time of year, once again! We want to keep you informed with everything you need to know for the new school year. Please take a moment to view our parent information letter.


 
Transportation Information

Transportation information has been mailed to all eligible students. As you are aware, this year Littleton families were empowered to choose a school based on program. Read more >>>


 
PTSA Meeting

Mark your calendar for our first PTSA meeting on August 11, 2016, at 4:15 p.m. It is going to be a great year!


 
Summer Food Program

Please take a moment to view our summer food program information. We have given details regarding dates and times for meals throughout the district over the course of the summer. Read more >>>


 
Enrollment for 2016-2017

We now have enrollment information available for the 2016-2017 school year. Read more >>>


 
Tax Credit Information

Reduce your Arizona state tax by contributing to Littleton Elementary District schools! Read more >>>


 
Art Education Page

We have a new district Art Education page. We will be adding new things to the page in the coming weeks, so visit often.

Check out our new Art Education page here! Read more >>>


 
Tax Credit Gifts and Donations

Our students depend on the generosity of our community to fund many of our extracurricular programs. We hope you will consider making a tax credit donation. You can read all about it on our District site. We all win!


 
Let's Get Connected

Got Facebook? Do youTweet? Always be in the know with the latest information on Tres Rios! Read more >>>


 
School Lunch

The Nutrition Department is excited to welcome you back to school! Read more >>>


 
2016-2017 School Hours

Check out the 2016-2017 school hours. Read more >>>


 
2016-2017 Parent Information

It's that time of year, once again! We want to keep you informed with everything you need to know for the new school year. Please take a moment to view our parent information letter.


 
Transportation Information

Transportation information has been mailed to all eligible students. As you are aware, this year Littleton families were empowered to choose a school based on program. Read more >>>


 
PTSA Meeting

Mark your calendar for our first PTSA meeting on August 11, 2016, at 4:15 p.m. It is going to be a great year!


 
Summer Food Program

Please take a moment to view our summer food program information. We have given details regarding dates and times for meals throughout the district over the course of the summer. Read more >>>


 
Enrollment for 2016-2017

We now have enrollment information available for the 2016-2017 school year. Read more >>>


 
Tax Credit Information

Reduce your Arizona state tax by contributing to Littleton Elementary District schools! Read more >>>


 
Art Education Page

We have a new district Art Education page. We will be adding new things to the page in the coming weeks, so visit often.

Check out our new Art Education page here! Read more >>>


 
Tax Credit Gifts and Donations

Our students depend on the generosity of our community to fund many of our extracurricular programs. We hope you will consider making a tax credit donation. You can read all about it on our District site. We all win!


 
Let's Get Connected

Got Facebook? Do youTweet? Always be in the know with the latest information on Tres Rios! Read more >>>


 
School Lunch

The Nutrition Department is excited to welcome you back to school! Read more >>>


 
2016-2017 School Hours

Check out the 2016-2017 school hours. Read more >>>


 
2016-2017 Parent Information

It's that time of year, once again! We want to keep you informed with everything you need to know for the new school year. Please take a moment to view our parent information letter.


 
Transportation Information

Transportation information has been mailed to all eligible students. As you are aware, this year Littleton families were empowered to choose a school based on program. Read more >>>


 
PTSA Meeting

Mark your calendar for our first PTSA meeting on August 11, 2016, at 4:15 p.m. It is going to be a great year!


 
Summer Food Program

Please take a moment to view our summer food program information. We have given details regarding dates and times for meals throughout the district over the course of the summer. Read more >>>


 
Enrollment for 2016-2017

We now have enrollment information available for the 2016-2017 school year. Read more >>>


 
Tax Credit Information

Reduce your Arizona state tax by contributing to Littleton Elementary District schools! Read more >>>


 
Art Education Page

We have a new district Art Education page. We will be adding new things to the page in the coming weeks, so visit often.

Check out our new Art Education page here! Read more >>>


 
Tax Credit Gifts and Donations

Our students depend on the generosity of our community to fund many of our extracurricular programs. We hope you will consider making a tax credit donation. You can read all about it on our District site. We all win!


 
Let's Get Connected

Got Facebook? Do youTweet? Always be in the know with the latest information on Tres Rios! Read more >>>


 
Follow Us onFacebook

logo