Highest salary at City of Marengo in year 2022 was $90,385. Number of employees at City of Marengo in year 2022 was 20. Average annual salary was $56,271 and median salary was $56,715. City of Marengo average salary is 20 percent higher than USA average and median salary is 30 percent higher than USA median salary. From 2021 to 2022, the median salary increased 2.0 percent.