Highest City of Onawa employee salary in year 2023 was $130,090. City of Onawa employees number in year 2023 was 76. City of Onawa average salary was $16,119 and median salary was $1,791. According to the last payroll, City of Onawa average salary is 78 percent lower than USA average and 54 percent lower than Iowa state average. City of Onawa employee salaries are usually between $673 and $17,287. Top 10% of highest-earning employees have salaries ranging from $60,166 to $130,090.