Pueblo voters will be asked in November whether the city and county should merge into one government.
The City Council has approved putting the question to a vote and the county commissioners are expected to pass a similar resolution.
November's vote would be non-binding. It is intended only to let elected officials know what the public thinks. They've been exploring the idea of forming a city-county government the past few years.
The city and county of Pueblo would either have to get statewide voter approval to merge, or simply consolidate services, stopping short of a merger. The second route wouldn't require statewide approval.
Broomfield became a city and county in 2001 after Colorado voters gave their okay. Before that, Broomfield was divided among four counties.