State guide
Idaho
Idaho’s onsite wastewater program is run through the seven public health districts under DEQ rules, so most property-specific permit work is handled at the district level rather than by DEQ directly. Official state guidance tells buyers and owners to contact the public health district for the county where the property is located for site evaluations, permits, inspections, fees, and records.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
- Who regulates septic permits
- Idaho DEQ sets the rules, but Idaho’s seven public health districts administer onsite wastewater permitting and handle site evaluations, permits, inspections, fees, and records for specific properties.
- Who can do the soil or perc test
- Official state guidance says the public health district conducts the site evaluation; district permit packets and guides also show that a test hole may be required and the evaluation is tied to the permit review process.
- Official septic permit page
- Official page →
- State fee
- Not published by an official source we could verify. Ask the office.
Official resources in Idaho
State overview explaining that public health districts handle site evaluations, permits, inspections, fees, and records for property-specific septic questions.
Official DEQ list of permitted septic installers, organized by health district and installer type.
State page to identify the public health district that serves a county.
District permit, records, fee, and county contact page for North Idaho counties.
District page with septic permit application, speculative evaluation form, and links to state rules and installer lists.
Key facts for Idaho
- Idaho’s seven public health districts administer onsite sewage rules under a memorandum of understanding with DEQ.
- Public health districts conduct site evaluations, issue septic system permits, inspect installations, and answer permit-record questions.
- DEQ says the property owner should have a site evaluation performed by the public health district and a licensed septic system installer before buying property and applying for a permit.
- Eastern Idaho Public Health says a septic permit is required and an onsite evaluation is conducted after application and fee submission.
- South Central Public Health District’s online septic records cover Blaine, Camas, Cassia, Gooding, Jerome, Lincoln, Minidoka, and Twin Falls counties.
- Eastern Idaho Public Health posts a septic permit application and a speculative onsite evaluation form on its septic rules page.
County septic and soil-evaluation offices in Idaho
| County office | city | phone | Details |
|---|---|---|---|
| Panhandle Health District — Bonner County Environmental Health Bonner | Sandpoint | Not published* | Handles septic permits and records for Bonner County through the district’s septic permits and records program. |
| Panhandle Health District — Boundary County Environmental Health Boundary | Bonners Ferry | Not published* | Handles septic permits and records for Boundary County through the district’s septic permits and records program. |
| Panhandle Health District — Benewah County Environmental Health Benewah | St. Maries | Not published* | Handles septic permits and records for Benewah County through the district’s septic permits and records program. |
| Central District Health — McCall / Valley County office Valley | McCall | 208-634-7194 | Office page lists Water, Septic & Subdivisions among environmental/community health services. |
| Central District Health — Mountain Home / Elmore County office Elmore | Mountain Home | 208-587-4407 | Office page lists Water, Septic & Subdivisions among environmental/community health services. |
| South Central Public Health District — Septic Records assistance Twin Falls | Twin Falls | (208) 737-5916 | Septic records portal assistance for Blaine, Camas, Cassia, Gooding, Jerome, Lincoln, Minidoka, and Twin Falls counties. |
| Eastern Idaho Public Health — Bonneville County Environmental Health Bonneville | Idaho Falls | (208) 523-5382 | Office locations page lists Environmental Health phone; septic permit application packet is handled through EIPH. |
| Eastern Idaho Public Health — Teton County septic permitting contact Teton | Not published* | Not published* | Current septic permit application checklist lists the county environmental health specialist contact for Teton County. |
* Not published: the official page doesn't list it. Call the office to confirm before you rely on it.
What to do next
- Identify your county’s public health district first, because permits, records, inspections, and many fees are district-run in Idaho.
- Before buying rural land, request a district site evaluation and review available septic records for the parcel.
- Use the DEQ installer list to confirm whether you need a standard/basic installer or a complex installer for the proposed system.
Not seeing your county office or county?
Not every county office publishes its rules online. Try these, in order:
- General Start with the statewide information above.
- Closest verified Nearest places where we have verified local data outside this state (distance from Idaho's population center, for comparison only):
- Ravalli County Environmental Health - Wastewater System Permit Application, Montana · about 153 miles
- Ravalli County Environmental Health, Montana · about 153 miles
- Missoula City-County Health Department - SEWPER Query, Montana · about 195 miles
- Call to confirm Ask the official office.Idaho DEQ — Septic and Septage
Website →Phone: (208) 373-0502 (as listed on that page, checked Oct 4, 2026)Your city or county office: Idaho Association of Counties →Not sure who handles it locally? USAGov's free help line, 1-844-872-4681, or the Idaho page on USA.gov can point you to the right office. - Know the current info? Tell us with a link to the official page.