Rock Falls (Illinois)

Rock Falls sī Bí-kok Illinois chiu Whiteside kūn ê chi̍t ê chng-thâu (city). Jîn-kháu Chit ūi tī 2010 nî ê jîn-kháu-sò͘ sī 9,266 lâng. Liân-kiat Koaⁿ-hong bāng-chām Archived 2015-11-22 at the Wayback Machine.