classicmoviebuff says on 5/Jun/11
Yochana is right. In her prime she was a shade under 5'7. Look at the last few frames of her first film with (her soon to be husband) Humphrey Bogart. They leave side by side and you can see the shoes that each is wearing. She's about an inch shorter than Bogart.

Recently I spent a long plane flight, and long wait to board, with Lauren. I'd say 5'6 is perhaps too high an estimate (and yes she doesn't wear heels), she's in her mid 80s and uses a walking stick.