There are several websites that give data on villages in Alaska. This information comes from a variety of sources, but primarily from Census Data. Here are some links to information, both specific to Lower Kalskag and also statewide data for all of Alaska.
Lower Kalskag Statistics
Alaska Economic Trends - http://labor.state.ak.us/trends/home.htm
Current Population Estimates - http://labor.alaska.gov/research/pop/popest.htm
Alaska Occupation Forecasts - http://live.laborstats.alaska.gov/occ/alloccs.cfm
Alaska Training Clearinghouse - http://live.laborstats.alaska.gov/atc/
Training Providers and Performance Summary - http://labor.alaska.gov/research/Training/provider.htm
Alaska Wages - http://live.laborstats.alaska.gov/wage/