ZIP Code 94569 — Port Costa CDP, CA Demographics & Data

ZIP code 94569 covers Port Costa, CA in Contra Costa County with a population of about 194.

At a glance, the area shows median age of 68.5 versus a U.S. median of about 38.9.

It sits in telephone area codes 341, 510; U.S. House district CA-8; the SAN FRANCISCO - OAK - SAN JOSE media market.

Port Costa, CA reads as a military / base-oriented community on US5’s intent model (elevated veteran share (38.1%) 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.

On socioeconomic markers, US5 shows a poverty rate of 0.0%; unemployment rate near 12.9%; 19.1% of adults with a bachelor’s degree or higher (about 14.6 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Construction, Manufacturing, and Public administration; a mean commute of about 69.0 minutes (U.S. average near 26.8).

Median home value is about $586,500 — about 68% above the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 35.4% (about 30.0 points below the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 94569 in Port Costa, CA, a household would need roughly $161,000 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 $3,768. 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 Costa CDP, CA as Very High (composite score 99.5), which is among the highest nationally. The strongest component scores on US5 are flood (99.5) and wildfire (97.6). 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 Costa CDP, CA show little to no average snow and around 21.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 10 for ZIP 94569 (Port Costa CDP, 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.