Buying Land in Forrest County, Mississippi

Anchored by Hattiesburg and USM, with real metro-area growth

Forrest County's identity is inseparable from Hattiesburg, its county seat and the anchor city of a genuine metropolitan area. Hattiesburg, Forrest County, and neighboring Lamar County together were designated a federal Metropolitan Statistical Area in 1994, with a combined population that topped 100,000 residents at designation and has grown since -- Forrest County alone recorded 78,158 residents at the 2020 Census. The University of Southern Mississippi's main campus sits within Hattiesburg, and a university of that size functions as a genuine, ongoing local economic and land-use driver: student housing demand, campus-adjacent commercial development, and steady population turnover all shape what land near Hattiesburg is used for and worth, in a way that's distinct from the state's more purely agricultural or timber counties.

Forrest County's own Planning Department reflects that metro-area reality -- rather than a typical rural-county planning office, it actively supports the Hattiesburg-Forrest-Lamar Metropolitan Planning Organization's transportation planning work and USM's own campus master planning process. That's a meaningfully more active planning apparatus than most Mississippi counties maintain, even setting aside the zoning question addressed below.

Hattiesburg's zoning code is real; the county's is unconfirmed

Inside Hattiesburg's city limits, zoning is genuinely comprehensive: the city's Land Development Code (Ordinance No. 3209, as amended, and revised through subsequent drafts) establishes base zoning districts, special districts, and overlay districts across a detailed Comprehensive Zoning District Map. Anyone buying land inside Hattiesburg should expect real, enforced zoning review for any development plan.

For land outside Hattiesburg and the county's other small incorporated places, this research pass found no confirmed evidence of a separate Board of Supervisors zoning ordinance covering unincorporated Forrest County -- consistent with Mississippi's optional, county-by-county zoning model, though this is an absence-of-evidence finding rather than a confirmed negative. The Forrest County Planning Department's stated role centers on regional transportation planning and support for the MPO and USM rather than a described countywide zoning function, which is suggestive but not conclusive. Given the genuine growth pressure radiating out from Hattiesburg, don't assume a nearby unincorporated parcel is unregulated -- confirm the specific status directly with the county Planning Department before finalizing any purchase or development plan.

A real short-term rental ordinance, not just a registration form

In March 2025, Hattiesburg's City Council passed Ordinance No. 3376, establishing a genuine permitting regime for short-term rentals inside city limits: a required local property manager, a certificate of zoning compliance, a fire inspection, a privilege tax license, specific fees, and -- most consequentially -- an outright ban on new short-term rentals in the city's R-1 and R-2 residential zoning districts, plus a citywide cap equal to 2.5% of total residential structures. If a short-term rental is part of your plan for a Forrest County property inside Hattiesburg, this ordinance is likely to determine feasibility more than general zoning alone. See this site's dedicated Forrest County short-term-rentals page for the full fee schedule, occupancy limits, and what's known (and not known) about rules outside city limits.

Septic and water permitting under the statewide system

Septic permitting in Forrest County follows Mississippi's statewide framework: MSDH's Title 41, Chapter 67 standard sets the rules, and the Forrest County Health Department in Hattiesburg carries out the actual site evaluation and permit issuance. Given the county's growth pressure, don't assume an older system on a resale parcel meets current sizing standards for your intended use -- get the health department's approval and inspection record directly, and budget for a fresh perc test on any undeveloped parcel.

Water use follows the same statewide rules as elsewhere in Mississippi: household wells generally fall well under the 20,000-gallon-per-day threshold that triggers annual reporting to MDEQ, but any parcel with an existing irrigation system, shared subdivision well, or commercial water use should have that status confirmed directly with MDEQ's Office of Land and Water Resources before you buy, since a permit is tied to a specific withdrawal point and doesn't automatically carry over to a new owner's plans.