Denver Celebrates
35 Years of Colorado-
Mongolia Relations and
25 Years of Sister
City Friendship.
Denver and Ulaanbaatar marked a remarkable milestone with an evening of music,
friendship, and cultural exchange honoring 35 years of Colorado–Mongolia relations
and 25 years of sister city partnership.
🌍 Building Global Friendship Through Citizen Diplomacy
Connecting Denver with communities around the world through culture, education, and civic exchange.
NOW ACROSS OUR SISTER CITIES
Denver Sister Cities International continues to build international relationships through youth exchanges, cultural programming, humanitarian partnerships, and citizen diplomacy across ten sister city committees.
Recent activity includes student exchanges, delegation planning, public cultural events, and international symposium leadership connecting Denver with global partners.
Latest Story
Denver and Ulaanbaatar marked a remarkable milestone with an evening of music, friendship, and cultural exchange honoring 35 years of Colorado–Mongolia relations and 25 years of sister city partnership.
Upcoming Events
Join us for upcoming cultural gatherings, committee activities, and international exchanges taking place across Denver.
Featured Committee
Our city committees continue building active relationships through education, civic dialogue, and community partnerships.
WHY IT MATTERS
Why Sister Cities Matter Today
In a rapidly changing world, city-to-city relationships create trust, cultural understanding, and opportunities that begin locally and extend globally.
GLOBAL IMPACT
Help us create a future where global connections and peace thrive through people-to-people diplomacy.
10 Sister Cities
46 Projects in 2025
4 Continents
Decades of Exchange
Built through volunteers, partnerships, and lasting friendships.
2025 Highlights
Denver Sister Cities International continued to expand Denver’s global relationships in 2025 through volunteer-led cultural exchange, youth leadership, citizen diplomacy, and humanitarian partnerships.
Last year’s work included 46 projects, 30 cultural events, 7 delegations, 5 student exchanges and 2 humanitarian initiatives across ten sister city partnerships.
FEATURED STORY
Denver Celebrates 35 Years of Colorado–Mongolia Relations and 25 Years of Sister City Friendship
Denver and Ulaanbaatar marked a remarkable milestone with an evening of music, friendship, and cultural exchange honoring 35 years of Colorado–Mongolia relations and 25 years of sister city partnership.
MEMBERSHIP + SUPPORT
Help us create a future where global connections and peace thrive through people-to-people diplomacy.
Become a Member
Membership helps sustain cultural programs, exchanges, and international relationships across Denver’s sister cities.
Support DSCI
Your support helps strengthen Denver’s global connections and future exchange opportunities.