ZIP Code 78384 — San Diego city, TX Demographics & Data

ZIP code 78384 covers San Diego, TX in Duval County with a population of about 5,656.

At a glance, the area shows median age of 35.4 versus a U.S. median of about 38.9.

It sits in telephone area code 361; U.S. House district TX-28; the CORPUS CHRISTI media market.

Median household income in ZIP 78384 is about $44,228 — about 41% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 34.9%; unemployment rate near 11.1%; 4.8% of adults with a bachelor’s degree or higher (about 28.9 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Mining, Healthcare, and Retail trade; about 12.4% of workers reporting work-from-home (about 2.8 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $59,400 — about 83% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $508 (about 56% below the U.S. median rent ($1,163)), and owner-occupancy near 76.2% (about 10.8 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 78384 in San Diego, TX, a household would need roughly $16,000 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 $382. That sits below the local median household income ($44,228), 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 San Diego city, TX as Relatively Low (composite score 54.4), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (74.8) and wildfire (52.4). 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 San Diego city, TX show little to no average snow and around 25.1 inches of annual precipitation.

IRS migration statistics show a net inflow of about 267 for ZIP 78384 (San Diego 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.