New Baltimore · Macomb County · Michigan

Septic in New Baltimore, MI

New Baltimore, with 35.1 percent of homes built before 1980, still falls under Macomb County for any septic work. Its homeowner pamphlet says a significant portion of Macomb County relies on septic systems.

Residents: 12,060
Homes built before 1980: 35.1%
Median home value: $309,800

Census figures: ACS 2023 five-year estimates (B01003, B25034, B25077).

Written by the SepticMatch editorial teamLast reviewed Oct 19, 2026

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Macomb County sets the septic rules

Septic permits, sale inspections and installer rules are set by the county health department, not by the city. A sale evaluation that has applied since August 2002.

Who permits septic systems: Macomb County Health Department, Environmental Health Services Division, Mount Clemens
Inspection at sale: Required
Permit steps: Soil evaluation first (online application, site plan, MISS DIG ticket, backhoe from the applicant), then the septic permit application with parcel ID, legal description and a professionally prepared site plan.

See the Macomb County septic rules

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Sewage backing up right now? Send an emergency request

Stop running water, keep people and pets away from the backup, and call your local health department. EPA's advice for a backup into the house is to avoid contact, keep the area unused until it is completely dry for at least 24 hours, and disinfect with 90 percent water and 10 percent household bleach. Then use the form and tick Backup, right now.

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Sources on this page

Onsite sewage disposal (septic) systems - Macomb County Read Oct 19, 2026.
Property transfer regulation - Macomb County Read Oct 19, 2026.
U.S. Census Bureau, American Community Survey 2023 five-year estimates (tables B01003, B25034, B25077) Read Oct 19, 2026.
Michigan Senate Fiscal Agency: Michigan Population by County, 1990-2024 (Census data) Read Oct 19, 2026.