ZIP Code 94574 — St. Helena city, CA Demographics & Data

ZIP code 94574 covers St. Helena, CA in Napa County with a population of about 7,646.

At a glance, the area shows median age of 47.5 versus a U.S. median of about 38.9.

It sits in telephone area codes 369, 707; U.S. House district CA-4; the SAN FRANCISCO - OAK - SAN JOSE media market.

St. Helena, CA sits in a university / college context (near pacific union college (2.2 mi)). Expect stronger interest in student housing, rentals, walkability, transit, and a younger adult age mix versus typical suburban ZIPs.

Median household income in ZIP 94574 is about $139,779 — about 86% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 5.8%; unemployment rate near 4.1%; 56.1% of adults with a bachelor’s degree or higher (about 22.4 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Retail trade, and Healthcare; about 18.4% of workers reporting work-from-home (about 3.2 points above 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 $1,876,500 — about 439% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,745 (about 50% above the U.S. median rent ($1,163)), and owner-occupancy near 66.5% (about 1.1 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 94574 in St. Helena, CA, a household would need roughly $517,000 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 $12,054. That is about 270% above the local median household income ($139,779), so the median earner would likely stretch or need a larger down payment. 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 St. Helena city, CA as Relatively High (composite score 95.3), which is among the highest nationally. The strongest component scores on US5 are wildfire (96.0) and flood (95.8). 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 St. Helena city, CA show little to no average snow and around 39.7 inches of annual precipitation.

IRS migration statistics show a net inflow of about 376 for ZIP 94574 (St. Helena city, CA) 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.