San Diegoculture & etiquette

San Ysidro is the busiest land border crossing in the Western Hemisphere. Northbound waits routinely run one to three hours at peak; the SENTRI trusted-traveller programme cuts that to a fraction using dedicated lanes. If you will cross even monthly — for family, dentistry, food or a cheaper flight out of Tijuana airport via the CBX bridge — apply early, because vetting takes months.

California gives new residents ten days, the tightest deadline of any large state, and waives testing for no country at all. You sit the knowledge test, hold an instruction permit and take a behind-the-wheel drive test regardless of how long you have driven. Book the appointment before you fly.

San Diego levies no city income tax, but California's is the highest in the country at the top end, and since 1 January 2024 the 1.3% disability levy applies to every dollar of wages with no ceiling. Do not compare a San Diego offer against a Texas one on cost of living alone — the tax gap is the larger number.

SSA verifies your status against DHS records that lag entry by one to two weeks, so an immediate visit usually wastes the trip. Only work-authorised people qualify; everyone else files IRS Form W-7 for an ITIN. The card is free.

San Diego is expensive for a city its size — persistently among the least affordable in the country relative to local wages, because supply is constrained and demand is driven by climate rather than industry. Expect to pay Los Angeles-adjacent rents on a smaller job market, and budget accordingly rather than assuming a second-tier city price.

The Blue Line runs from the border through downtown to UC San Diego, and the Green and Orange lines fill in east and north. If your life sits on that spine you can manage without a car; if it does not, San Diego is as car-dependent as anywhere in California. Check your commute against the map before deciding.