The announcement was made Tuesday during a Houston City Council emergency meeting.
This comes nearly a week after Mayor Sylvester Turner and Harris County Judge Lina Hidalgo made the announcement of the abrupt closure of the Houston Livestock Show and Rodeo, a large-scale, 18-day event attended by millions of people each year.
SEE MORE: RodeoHouston shutting down early amid coronavirus concerns
The top leaders in the fifth-largest metropolitan area in the United States came to the decision based on a presumptive positive coronavirus case out of nearby Montgomery County.
SEE MORE: Montgomery County coronavirus patient attended BBQ Cookoff
The Montgomery County resident with the presumptive positive case of COVID-19 had no out-of-state travel and no identified contact with another person with the illness.
During the announcement, Turner said leaders were monitoring the various cases in the area over the last week, which were entirely travel-related. However, things changed, he added.
The emergency declaration not only impacted the rodeo. The Tour de Houston, a city-wide cycling event planned for March 15, is also being postponed.
Turner also added all city organized or co-sponsored town hall events in March are also being scratched.
Judge Hidalgo similarly announced a "disaster declaration" for Harris County.
"I directed and we directed all our departments to prioritize coronavirus preparedness, over and above anything that is not an essential function," Hidalgo said.
Harris County's declaration activates its emergency management plan.
SEE MORE: Harris County lacks coronavirus testing capabilities
Where are the coronavirus cases in the U.S.?
The video is from a previous story.