Celebrate Down Syndrome Awareness Month. Background image: A happy boy with Down syndrome.

Celebrate with NDSS!

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Groups of advocates pose in front of the US Capitol Building

NDSS' mission is to create a world where individuals with Down syndrome thrive.

NDSS logo. Upside logo. Shop. Hopping cart and gas pump icons. Earn Cash Back. Hand holding the upside logo icons. Donate. Donations collection box with an NDSS logo icon.

Turn Everyday Purchases into Impact

NDSS is partnering with Upside, a free cash back app that rewards you for everyday purchases at gas stations, grocery stores, and restaurants. Now, when you earn cash back through Upside, you can choose to donate those rewards to help individuals with Down syndrome thrive.

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On the left, a blue logo shaped like a rounded shield with a white outline reads HOKA Semi de Paris in bold white letters, with a small white winged swoosh over the O in HOKA. A wavy band of yellow, orange, and red stripes runs along the bottom. On the right, a motion-blurred photo shows a crowd of runners in colorful shirts racing along a road past a large stone building under an overcast gray sky.

Join Team NDSS in Paris

Join Team NDSS in Paris! Run to help create a world where individuals with Down syndrome thrive. Apply to join the half marathon:

  • Hoka Semi De Paris Half Marathon – March 7, 2027

    Apply

National Down Syndrome Society
(Mon-Fri, 9AM - 5PM ET)
1155 15th Street NW
Suite 540
Washington, DC 20005

Toll-free NDSS Helpline:
800-221-4602

Contact us