ZIP Code 31315 — Fort Stewart CDP, GA Demographics & Data

ZIP code 31315 covers Fort Stewart, GA in Liberty County with a population of about 8,319.

At a glance, the area shows median age of 21.3 versus a U.S. median of about 38.9.

It sits in telephone area code 912; U.S. House district GA-1; the SAVANNAH media market.

Fort Stewart, GA reads as a military / base-oriented community on US5’s intent model (base-related place names in city/county context). Service members and families often look up Basic Allowance for Housing (BAH) rates, on-base mail (PSC / P.O. Box) addresses, and nearby ZIP demographics when relocating.

US5 shows 2026 DoD BAH locality rates for this ZIP’s Military Housing Area on this page (pay grade × with/without dependents). Treat the table as a planning reference and confirm entitlement with your finance office or the official DTMO BAH lookup.

Median household income in ZIP 31315 is about $51,090 — about 32% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 13.8%; unemployment rate near 13.3%; 22.7% of adults with a bachelor’s degree or higher (about 11.0 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Food services, Healthcare, and Public administration; about 3.3% of workers reporting work-from-home (about 11.9 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing tenure and rents show median gross rent around $1,516 (about 30% above the U.S. median rent ($1,163)), and owner-occupancy near 0.2% (about 65.2 points below the national owner-occupancy rate (65.4%)).

FEMA’s National Risk Index rates natural-hazard risk for Fort Stewart CDP, GA as Relatively Moderate (composite score 83.0), which is elevated versus much of the country. The strongest component scores on US5 are hurricane (96.9) and wildfire (76.1). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Fort Stewart CDP, GA show little to no average snow and around 51.0 inches of annual precipitation.

IRS migration statistics show a net inflow of about 367 for ZIP 31315 (Fort Stewart CDP, GA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.