Webum > Regional > North America > United States > New York > Counties > Columbia > Government Chatham@ See also Regional > North America > United States > New York > Regions > Hudson Valley > Government Columbia County 911 Provides information concerning the use of the 911 emergency number, house numbering, the dispatchers, the addresses and phone numbers of police and utility companies. National Association of Counties - Profile of Columbia County Provides a list of elected officials, cities within the county, census details, and contact details for the county court house. Help build the biggest human edited directory on the internet Add your website - Open Directory Project - Become an editor