Heart of America Newfoundland club comprises members from Kansas, Western Missouri, Northeastern Oklahoma, Southwestern Iowa and Southeastern Nebraska. This region is defined as follows:

Kansas - all counties; Western Missouri - Schuyler, Adair, Macon, Randolph, Howard, Cooper, Moniteau, Morgan, Camden, Laclede, Wright, Douglas, Ozark counties and all counties west to state lines; Southeastern Nebraska - Cass, Cuming, Dodge, Douglas, Franklin, Gage, Johnson, Lancaster, Nemaha, Otoe, Pawnee, Richardson, Sarpy, Saunders, and Washington counties; Southwestern Iowa - Adair, Adams, Appanoose, Boone, Cass, Clarke, Decatur, Fremont, Jasper, Lucas, Madison, Marion, Mills, Monroe, Montgomery, Page, Polk, Pottawattamie, Ringgold, Taylor, Union, Warren, and Wayne counties; Northeastern Oklahoma - Adair, Cherokee, Craig, Creek, Delaware, Kay, Mayes, Muskogee, Noble, Nowata, Okmulgee, Osage, Ottawa, Pawnee, Payne, Rogers, Sequoyah, Tulsa, Wagoner, and Washington counties.