7Up has been bottled in different cities depending on the bottling franchise and time period, so there isn’t one single city. From the sources I found, examples include San Francisco, Sacramento, Oakland, Santa Rosa, Vallejo, Jamestown, Washington, D.C., Alexandria, and Portland.

What that means

  • Historic bottling was local. 7Up was often bottled by regional companies serving specific cities or counties, not just one national plant.
  • Cities changed over time. The bottling location could shift as franchises expanded, moved, or were consolidated.
  • Different bottles can show different cities. Old bottles often list the bottling company and city on the label or embossing.

Examples found

City| Evidence
---|---
San Francisco| First bottling factory opened there in 1937 2.
Sacramento| Listed as a production facility/distribution point 2.
Oakland| Listed as a distribution point 2.
Santa Rosa| Listed as a distribution point 2.
Vallejo| Listed as a distribution point 2.
Jamestown, New York| 7Up bottles were filled there; a bottling plant was listed at 1085 East 2nd Street 3.
Washington, D.C.| Bottling locations listed for Seven-up Washington Inc. 6.
Alexandria, Virginia| Bottling locations listed for Seven-up Alexandria Bottlers and Seven-up Bottling Co. 6.
Portland, Oregon| A 7 Up Bottling Company building is documented there 7.

Practical reading

If you’re trying to identify a specific old 7Up bottle, the city is usually the clue printed on the bottle itself. A bottle from one era might say it was bottled in one city, while another from a different region or decade could say something else.

TL;DR: 7Up was bottled in many cities, especially through local franchise bottlers; the exact city depends on the bottle and era.