In which state can you find a city with the motto "urbs in hortō"?

The motto "urbs in hortō," which translates to "city in a garden," is associated with the city of Chicago, located in Illinois. This phrase reflects the city's commitment to green spaces, gardens, and parks, which are integral to its urban landscape. Chicago is renowned for its architecture and vibrant cultural scene, but also for its efforts in urban gardening and environmental sustainability.

The other states mentioned do not have a city known for this particular motto. New York is famous for New York City and its own various mottos, while Ohio and Colorado have their own distinct cities and identities that do not relate to "urbs in hortō." Therefore, Illinois, with Chicago's motto emphasizing its foliage and garden-like qualities, uniquely fits the description given in the question.