ZIP Code 70556 — Mermentau village, LA Demographics & Data

ZIP code 70556 covers Mermentau, LA in Acadia Parish with a population of about 570.

At a glance, the area shows median age of 68.6 versus a U.S. median of about 38.9.

It sits in telephone area code 337; U.S. House district LA-3; the LAFAYETTE, LA media market.

Mermentau, LA fits a retirement-oriented profile (high share of residents 65+ (53.0%)). Residents and relocators commonly research healthcare access, everyday amenities (dining, personal services), and housing costs rather than tech or campus life.

Median household income in ZIP 70556 is about $112,864 — about 50% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 18.4%; unemployment rate near 10.3%; 36.5% of adults with a bachelor’s degree or higher (about 2.8 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Manufacturing, and Food services; a mean commute of about 131.0 minutes (U.S. average near 26.8).

Median home value is about $55,900 — about 84% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $300 (about 74% below the U.S. median rent ($1,163)), and owner-occupancy near 81.3% (about 15.9 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 70556 in Mermentau, LA, a household would need roughly $15,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $359. That sits below the local median household income ($112,864), suggesting the typical household income is closer to a workable buy-in level under these assumptions. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate normals for Mermentau village, LA show little to no average snow and around 63.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 23 for ZIP 70556 (Mermentau village, LA) 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.