San Diego has two of the best-known land crossings with Mexico, San Ysidro and Otay Mesa, and the Bureau of Transportation Statistics shows what that means for freight: the Otay Mesa port recorded 990,111 inbound truck crossings in 2025, more than the 446,835 at Calexico East and the 60,494 at Tecate combined. It ranks fourth among all land ports in the country for trucks that year. The city also hosts a dated convention, Comic-Con International, which lists July 22 to 25, 2027, with a preview night on July 21. For a store the two facts do different jobs. The border figures say where goods that cross the line enter the country, and the convention dates give a collectibles or fan-merchandise offer a start and an end. This page gives the numbers from the Bureau of Transportation Statistics and the convention's site, the sales tax rate rows that matter for a San Diego delivery address, and a multi-buy plan for a collectibles catalog.
San Diego's Otay Mesa port is the busiest truck crossing in California by the federal count, and for a store whose goods or components come across the Mexican border it is the place those goods enter the country, which affects lead times and landed cost.
Choose the collectible lines that sell in sets and price a two-item and a three-item step from your own landed cost. Test each step against your margin with the break-even formula before you publish a percentage.
Source: Comic-Con International
Confirm the convention dates on the organizer's site, since the 2027 dates are listed as July 22 to 25 with a preview night on July 21. Set the ladder to start on July 21 and end on July 25.
Source: Comic-Con International
Place two test orders to different San Diego area addresses, one in the county and one in a city with its own row in the CDTFA table, and check that the tax on each total matches the table. Quote prices before tax.
Ask your forwarder how the Otay Mesa crossing affects your own lead time. The Bureau's figures show a busy truck port, not a transit time, so do not put a delivery promise in the banner that your forwarder has not given you.
Build it with the Volume discount template.
Start a buy more, save more ladder on preview night, July 21, 2027, and end it on the closing day, July 25. A collectible that sells in sets suits a quantity ladder, and the four dated days give you a fixed window to count units against.
Source: Comic-Con International
The CDTFA table lists San Diego County at 7.75 percent and Chula Vista, National City and Imperial Beach at 8.75 percent, so two San Diego area shoppers can see different totals on the same cart. Let checkout calculate the tax and keep the offer's threshold on the pre-tax cart value.
A store that brings in goods or components from Mexican suppliers can look at the border figures as context for its own lead times: 990,111 inbound truck crossings in 2025 at Otay Mesa, about 70 thousand fewer than in 2024. The dataset does not say how long any one truck waits, so ask your freight forwarder for your own numbers before you promise a date.
The Bureau of Transportation Statistics' border crossing data records 990,111 inbound truck crossings at the Otay Mesa port in 2025, down from 1,059,759 in 2024, and more than the other two California truck ports, Calexico East at 446,835 and Tecate at 60,494.
Bureau of Transportation Statistics: Border Crossing Entry Data (2025, inbound truck crossings; source data from U.S. Customs and Border Protection) (accessed October 10, 2026)
Summed by port for 2025, inbound truck crossings were 2,945,388 at Laredo, 1,132,114 at Detroit and 1,060,776 at Port Huron, which puts Otay Mesa fourth among all U.S. land ports in the dataset.
Bureau of Transportation Statistics: Border Crossing Entry Data (2025, inbound truck crossings; source data from U.S. Customs and Border Protection) (accessed October 10, 2026)
The General Services Administration's release of January 24, 2020 on the end of the nearly 10 year, 741 million dollar San Ysidro Land Port of Entry modernization quotes its Public Buildings Service deputy commissioner calling it the busiest land port in the Western Hemisphere.
U.S. General Services Administration: San Ysidro Land Port of Entry modernization and expansion completed (January 24, 2020) (accessed October 10, 2026)
The CDTFA rate table operative October 1, 2026 lists San Diego County at 7.75 percent and the nearby cities of Chula Vista, National City and Imperial Beach at 8.75 percent, and has no separate row for the city of San Diego.
California Department of Tax and Fee Administration: Sales and Use Tax Rates by County and City (CDTFA-95, operative October 1, 2026) (accessed October 10, 2026)
Comic-Con International's site lists the 2027 convention at the San Diego Convention Center as July 22 to 25, 2027, with preview night on July 21.
Comic-Con International (accessed October 10, 2026)
The Census Bureau's Vintage 2025 estimate for July 1, 2025 is 1,406,106 residents for the city of San Diego, the second most of any California city after Los Angeles.
U.S. Census Bureau: Vintage 2025 city and town population estimates (SUB-EST2025) (accessed October 10, 2026)
Not tax advice. Confirm current rules with the state revenue department before you rely on a date or an exemption.
