City of San Luis
- Staffed City/Local Fire Department
- City Police Department
- Municipal Water & Sewage
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City of Somerton
- Staffed City/Local Fire Department
- City Police Department
- Municipal Water & Sewage
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City of Yuma
- Staffed City/Local Fire Department
- City Police Department
- Municipal Water & Sewer
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Town of Wellton
- Volunteer Fire Department
- City Police Department
- Municipal Water & Sewer
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Yuma County
- Rural/Metro Fire Department (private)
- Staffed County Sheriff Department
- Water & Sewer – County Improvement Districts (administered through Public Works Department) & Private Companies
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