Isodemographic map of North America, 1975-1976. Published by by Queen's University, Dept. of Geography 1978. The objective of this map is to portray characteristics of the distribution of population in North America. Through scaling population by area, an attempt has been made to aid in the visualization of relative population sizes. At the same time we have endeavored to preserve, as much as possible, the shapes of urban areas and states (and provinces) as well as contiguity, in order that they be more recognizable. Compilation and design by Ron Eastman, Gordon Shields, Bill Nelson. Technical assistance R Hough.
![[portion] Isodemographic map of North America, 1975-1976. Published by by Queen's University, Dept. of Geography 1978.
This map is an illustration of the characteristics of population distribution in North America. Those metropolitan areas depicted have a population of 250,000 or greater as determined from census information current as of 1975-76. Isodemographic maps are scaled in proportion to the number of people they contain. Attempts have been made to preserve the distinctive shapes of most political and geographical units. In order to maintain contiguity between adjacent units, it has been necessary to trade off some attributes of their spatial characteristics, including shape and orientation. As is clearly shown, North American population is highly urbanized, with foci on the Eastern Seaboard, in the Midwest and on the West Coast. Standing out from these established foci are the newer 'growth centers of Atlanta, Houston, Denver, and Toronto. Many metropolitan areas are in reality sections of still larger conurbations. As an example, the New York metropolitan area covers but a small part of what might be called the New York conurbation including much of New Jersey, Connecticut and all of Long Island. The urban/rural split in North America can also be seen from the map. At opposite extremes one might note the Northern Rocky Mountain states with no metropolitan structures, while on the other hand New Jersey is composed almost completely of metropolitan governments. Somewhere in the middle of the spectrum would be the Southern states, with a large rural population and several large, growing urban centers. Canada's ecumene consists of a 200 mile wide belt with numerous cities in the west and east but very low population in between. The primacy of Montreal and Toronto is clearly evident as is the urban hierarchy of southern Ontario. As a demographic portrait, this map has as its main advantage an easily perceived pattern of population in North America.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:q66r3vy7xepmx62ti4vt7uzb/bafkreicwpkmhmyx4nnnsl4psfoeahqequjzzizngez7f5ehvqo64f3hwmu)
[portion] Isodemographic map of North America, 1975-1976. Published by by Queen's University, Dept. of Geography 1978. This map is an illustration of the characteristics of population distribution in North America. Those metropolitan areas depicted have a population of 250,000 or greater as determined from census information current as of 1975-76. Isodemographic maps are scaled in proportion to the number of people they contain. Attempts have been made to preserve the distinctive shapes of most political and geographical units. In order to maintain contiguity between adjacent units, it has been necessary to trade off some attributes of their spatial characteristics, including shape and orientation. As is clearly shown, North American population is highly urbanized, with foci on the Eastern Seaboard, in the Midwest and on the West Coast. Standing out from these established foci are the newer 'growth centers of Atlanta, Houston, Denver, and Toronto. Many metropolitan areas are in reality sections of still larger conurbations. As an example, the New York metropolitan area covers but a small part of what might be called the New York conurbation including much of New Jersey, Connecticut and all of Long Island. The urban/rural split in North America can also be seen from the map. At opposite extremes one might note the Northern Rocky Mountain states with no metropolitan structures, while on the other hand New Jersey is composed almost completely of metropolitan governments. Somewhere in the middle of the spectrum would be the Southern states, with a large rural population and several large, growing urban centers. Canada's ecumene consists of a 200 mile wide belt with numerous cities in the west and east but very low population in between. The primacy of Montreal and Toronto is clearly evident as is the urban hierarchy of southern Ontario. As a demographic portrait, this map has as its main advantage an easily perceived pattern of population in North America.
Not to be outdone by UBC's #Isodemographic #Map of Canada archive.org/details/WCWd... Queen's University, Dept. of Geography (compilation and design by R. Eastman, B. Nelson and G. Shields.) published the Isodemographic Map of North America, 1975-1976 archive.org/details/WCWd...
![Cover of
Isodemographic map of Canada
Authors: L. Skoda, J. C. Robertson
Print Book, English, [1972, ©1967]
Publisher: Dept. of the Environment, Lands Directorate, Ottawa, [1972, ©1967]
Physical Description:
viii, 34 pages illustrations, maps (2 folded color in pocket) 28 cm.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:q66r3vy7xepmx62ti4vt7uzb/bafkreie32yorpupjcfpdtt5mcfaj7nf4av32n7avlk6k4xuufizrfd744i)
![Page 6 from the Isodemographic map of Canada by L. Skoda, J. C. Robertson. Dept. of the Environment, Lands Directorate, Ottawa, [1972, ©1967]
Page notes: the process of Orthomorphic transformation including Figure 5. Shape deformation principal: a hypothetical situation in which map grid lines designate segments of territory with different populations,](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:q66r3vy7xepmx62ti4vt7uzb/bafkreiej4re6spfnbztvrijismi7hjhd4fyitzt22aru4t43zezoa2y7am)
