ZIP Code 63386 — West Alton city, MO Demographics & Data

ZIP code 63386 covers West Alton, MO in St. Charles County with a population of about 537.

At a glance, the area shows median age of 36.9 versus a U.S. median of about 38.9.

It sits in telephone area code 636; U.S. House district MO-3; the ST. LOUIS media market.

Median household income in ZIP 63386 is about $125,313 — about 67% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 1.7%; unemployment rate near 3.1%; 20.7% of adults with a bachelor’s degree or higher (about 13.0 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Construction, and Education; about 9.7% of workers reporting work-from-home (about 5.5 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 $156,300 — about 55% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,063 (about 9% below the U.S. median rent ($1,163)), and owner-occupancy near 94.7% (about 29.3 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 63386 in West Alton, MO, a household would need roughly $43,000 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 $1,004. That sits below the local median household income ($125,313), 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 West Alton city, MO as Relatively Moderate (composite score 92.6), which is among the highest nationally. The strongest component scores on US5 are flood (94.2) and wildfire (58.8). 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 West Alton city, MO show little to no average snow and around 41.9 inches of annual precipitation.

IRS migration statistics show a net inflow of about 24 for ZIP 63386 (West Alton city, MO) 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.