Sections 23-901 to 23-919 shall apply to all the counties of this state, except counties having a population of two hundred thousand or more inhabitants, and shall apply to counties of the latter class to the extent and under the conditions presented in section 23-920. The fiscal year of all counties, except as is provided for in section 23-920, shall begin July 1 and end June 30, and shall be the budget year.
Neb. Rev. Stat. §§ 23-902