Hamilton County, IL septic permits and regulations

Septic systems in Hamilton County, Illinois are permitted by Hamilton County Health Department under 77 Ill. Admin. Code Part 905.

Septic permit program

  • Program type: County Health Department
  • Authorized agent: Hamilton County County Health Department
  • Own septic program: No, uses Illinois state rules
  • Local rules beyond the state: No
  • Population: 7,993

Permit fee comparison

Average septic permit fee in Hamilton County: $175. Illinois average: $183.

Local rules

County operates under state-level 77 Ill. Admin. Code Part 905 (Private Sewage Disposal Code). Contact local health department for any additional county-specific requirements.

What SepticPro has on file for Hamilton County

  • 13 permit fees with sources
  • The agency phone, email and office address
  • Setback distances
  • Soil and perc test requirements
  • Allowed system types
  • System design rules
  • Inspection requirements
  • Maintenance and pumping rules
  • Point-of-sale rules
  • Installer, designer and pumper licensing

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Draw a permit-ready site plan for Hamilton County

Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for Hamilton County Health Department. See how SepticPro site plans work.

Other Illinois counties

Data checked 2026-05-10. Always confirm requirements with Hamilton County Health Department before applying.