ZIP Code 77655 — Port Arthur city, TX Demographics & Data

ZIP code 77655 covers Port Arthur, TX in Jefferson County with a population of about 266.

At a glance, the area shows median age of 59.2 versus a U.S. median of about 38.9.

It sits in telephone area code 409; U.S. House district TX-14; the BEAUMONT - PORT ARTHUR media market.

Port Arthur, TX reads as a military / base-oriented community on US5’s intent model (elevated veteran share (20.0%) and/or base-related place names). 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 77655 is about $73,036 — about 3% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 8.6%; unemployment rate near 0.0%; 12.9% of adults with a bachelor’s degree or higher (about 20.8 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Construction, Public administration, and Retail trade; about 1.0% of workers reporting work-from-home (about 14.2 points below the U.S. share (15.2%)); a mean commute of about 102.0 minutes (U.S. average near 26.8).

Median home value is about $135,000 — about 61% below the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 100.0% (about 34.6 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 77655 in Port Arthur, TX, a household would need roughly $37,000 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 $867. That sits below the local median household income ($73,036), 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.

FEMA’s National Risk Index rates natural-hazard risk for Port Arthur city, TX as Relatively High (composite score 95.7), which is among the highest nationally. The strongest component scores on US5 are hurricane (98.2) and wildfire (92.4). 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 Port Arthur city, TX show little to no average snow and around 62.1 inches of annual precipitation.

IRS migration statistics show a net inflow of about 13 for ZIP 77655 (Port Arthur city, TX) 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.