---
title: "Title 5 Septic Inspectors by Massachusetts County"
description: "Browse MassDEP-approved Title 5 septic System Inspectors by Massachusetts county, with approval IDs and expiry dates from NEIWPCC's official list."
canonical: https://title5roster.com/counties/
---

# Browse by county

Massachusetts has 14 counties with at least one MassDEP-approved System Inspector based there. Inspectors usually travel within a region, so if your town has few or none, check the county page, then neighboring counties. Every listing links back to the NEIWPCC source list.

Not sure what an inspection involves? Read [Title 5 explained](https://title5roster.com/title-5-inspection/) and the [cost guide](https://title5roster.com/title-5-inspection-cost/).

* [Barnstable](https://title5roster.com/county/barnstable/) (122)
* [Berkshire](https://title5roster.com/county/berkshire/) (55)
* [Bristol](https://title5roster.com/county/bristol/) (107)
* [Dukes](https://title5roster.com/county/dukes/) (10)
* [Essex](https://title5roster.com/county/essex/) (74)
* [Franklin](https://title5roster.com/county/franklin/) (27)
* [Hampden](https://title5roster.com/county/hampden/) (49)
* [Hampshire](https://title5roster.com/county/hampshire/) (34)
* [Middlesex](https://title5roster.com/county/middlesex/) (143)
* [Nantucket](https://title5roster.com/county/nantucket/) (10)
* [Norfolk](https://title5roster.com/county/norfolk/) (71)
* [Plymouth](https://title5roster.com/county/plymouth/) (160)
* [Suffolk](https://title5roster.com/county/suffolk/) (5)
* [Unmatched](https://title5roster.com/county/unmatched/) (1)
* [Worcester](https://title5roster.com/county/worcester/) (185)