The suburbs saw great growth in the second half of the 20th century, and it was only in the post-World War II period that a truly metropolitan New Orleans comprising the New Orleans center city and surrounding suburbs developed. The largest suburb today is Metairie, an unincorporated subdivision of Jefferson Parish that borders New Orleans to the west. In a somewhat different postwar developmental pattern than that experienced by other older American cities, New Orleans' center city population grew for the first two decades after the war. This was due to the city's ability to accommodate large amounts of new, suburban-style development within the existing city limits, in such neighborhoods as Lakeview, Gentilly, Algiers and New Orleans East. Unlike some other municipalities, notably many in Texas, New Orleans is unable to annex adjacent suburban development.