San Francisco -- San Francisco ranks No. 4 in U.S. News' newly released list of the 10 Most Expensive U.S. Cities for Workers. Citing information from the Council for Community and Economic Research (C2ER), the publication reported that the average cost of living for a couple with a baby or young child in San Francisco was $9,556 a month in 2010, with the figure about $1,000 higher for couples with older children. Manhattan topped the list, followed by Brooklyn and Honolulu. The complete report is available at the link below.