Colstrip
| 
                                        YEAR  | 
                                    
                                        CITY/COUNTY  | 
                                    
                                        EXISTING FORM  | 
                                    
                                        PROPOSED FORM  | 
                                    
                                        FINAL FORM  | 
                                 
| 
                                        1976  | 
                                    
                                        Colstrip  | 
                                    
                                        N/A  | 
                                    
                                        N/A  | 
                                    
                                        N/A  | 
                                 
| 
                                        1986  | 
                                    
                                        Colstrip  | 
                                    
                                        N/A  | 
                                    
                                        N/A  | 
                                    
                                        N/A  | 
                                 
| 
                                        1996  | 
                                    
                                        Colstrip  | 
                                    
                                        N/A  | 
                                    
                                        N/A  | 
                                    
                                        N/A  | 
                                 
| 
                                        2006  | 
                                    
                                        Colstrip  | 
                                    
                                        COM EX (C)  | 
                                    
                                        NO PROPOSAL  | 
                                    
                                        COM EX (C)  | 
                                 
| 
                                        2016  | 
                                    
                                        Colstrip  | 
                                    
                                        COM EX (C)  | 
                                    
                                        NO REVIEW  | 
                                    
                                        COM EX (C)  | 
                                 
| 
                                        2026  | 
                                    
                                        Colstrip  | 
                                    
                                        COM EX (C)  | 
                                    
                                        ----  | 
                                    
                                        ------  | 
                                 
In 1999 the question of incorporation was placed before the voters of Colstrip in Rosebud County on November 3. Incorporation was approved by a vote of 593 to 359. The form of government adopted was the alternative commission-executive form with self- government powers, at large, non-partisan elections of four council members and a separately elected mayor.
In 2003 at the November 4 municipal election, Colstrip voters approved a charter with the commission-executive plan of government by a vote of 232 for the charter and 186 for the existing commission-executive form of government.
