omissions by the inclusion of the places urban under special rules.
Even with these rules, however, many large and closely built-up
places were excluded from the urban territory. To improve the situa-
tion in the 1960 Census, the Bureau of the Census set up, in advance
of enumeration, boundaries for urban fringe areas around cities of
50,000 or more and for unincorporated places outside urban fringes.
All the population residing in urban-fringe areas and in unincorporated
places of 2,500 or more is classified as urban according to the new
definition. (Of course, the incorporated places of 2,500 or more are
urban in their own right.) Consequently, the special rules of the old
definition are no longer necessary.

According to the new urban definition, the 1950 urban population of
Maryland consisted of the following components: (1) The 1,215,258
inhabitants of the 31 incorporated places of 2,600 inhabitants or more;
(2) the 7,958 inhabitants of the 2 specially delineated unincorporated
places of 2,500 inhabitants or more; and (3) 392,686 persons living in
other territory in the urban fringe of Baltimore and the Maryland part
of the urban fringe of Washington, D. C.

Under the old definition, there were two places urban under special
rule in Maryland. These places, district 12 and district 13 in Baltimore
County, had a total population of 59,360. The urban population under
the old definition, therefore, consisted of the population of the 31
incorporated places of 2,600 inhabitants or more and the 59,360
inhabitants of district 12 and district 13, a total of 1,274,618.

Under the new definition, 56,469 inhabitants of the two places urban
under special rule were included in the urban population because they
were living in the urban fringe of Baltimore. The remaining 2,891
inhabitants of these places were classified as rural. The net gain in the
urban population of the State resulting from the change in definition,
therefore, was 341,284.