ZIP Code 94535 — Fairfield city, CA Demographics & Data

ZIP code 94535 covers Fairfield, CA in Solano County with a population of about 3,863.

At a glance, the area shows median age of 22.2 versus a U.S. median of about 38.9.

It sits in telephone area codes 369, 707; U.S. House district CA-8; the SACRAMNTO - STKTN - MODESTO media market.

Fairfield, CA reads as a military / base-oriented community on US5’s intent model (elevated veteran share (26.4%) 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 94535 is about $83,525 — about 11% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 4.0%; unemployment rate near 13.8%; 33.3% of adults with a bachelor’s degree or higher (roughly in line with the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Finance and insurance, and Retail trade; about 3.6% of workers reporting work-from-home (about 11.6 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing tenure and rents show median gross rent around $2,951 (about 154% above the U.S. median rent ($1,163)), and owner-occupancy near 0.8% (about 64.6 points below the national owner-occupancy rate (65.4%)).

FEMA’s National Risk Index rates natural-hazard risk for Fairfield city, CA as Relatively High (composite score 97.0), which is among the highest nationally. The strongest component scores on US5 are flood (97.4) and wildfire (94.5). 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 Fairfield city, CA show little to no average snow and around 24.8 inches of annual precipitation.

IRS migration statistics show a net inflow of about 190 for ZIP 94535 (Fairfield 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.