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Forrest & Lamar County Service Areas

One site, one market, and local professionals who already know what the ground does here.

The communities below are where we can put you in front of licensed IOWDS professionals. They are not interchangeable: lot sizes, soil and how close the nearest sewer runs all change from one to the next, and so does what a system is likely to cost.

Hattiesburg

The city is largely sewered, but the growth at the edges and across the county line is not.

Petal

East across the Leaf River in Forrest County. A lot of established housing on private systems.

Oak Grove

Lamar County, and one of the fastest-growing parts of the area. New builds here mean new Notices of Intent.

Purvis

Lamar County seat. Larger lots, mostly on-site treatment.

Sumrall

Rural Lamar County. Well and septic is normal, which raises the separation distances that apply.

Lumberton

Southern Lamar County, lower and wetter, where water table depth does the deciding.

Brooklyn

Southern Forrest County near the national forest. Remote lots, long service runs.

Richburg

Unincorporated Forrest County with a mix of older and recent systems.

Rawls Springs

Northwest of the city, on acreage, effectively all private treatment.

Not on the list?

Send the address anyway. Coverage follows where the professionals actually work rather than a line on a map, and the edges of Forrest County are served by people who cross county lines routinely.

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Licensed Forrest County IOWDS professionals will contact you directly. There is no charge and no obligation.

We are an information and referral service, not a septic contractor, and we may be paid for the introduction. You are never charged.

Last reviewed September 23, 2026 against the Mississippi State Department of Health and the Mississippi State Department of Health published rules. How we research this site.