Emphasis. The colon can be used to emphasize a phrase or single word at the end of a sentence. An em dash can be used for the same purpose. In the second example below, an em dash is more common than a colon, though the use of a colon is nevertheless correct.
Lawrenceville, GA Income and Careers. As of 2010-2014, the per capita income of Lawrenceville is $19,178, which is lower than the state average of $25,427 and is lower than the national average of $28,555. Lawrenceville median household income is $42,459, which has shrunk by 1.94% since 2000.
Zip code 30043 is primarily located in Gwinnett County. The official postal service name used for 30043 is LAWRENCEVILLE, Georgia. Portions of the 30043 zip code are contained within or border the city limits of Lawrenceville, GA, Suwanee, GA, . Zip code 30043 is part of area code 678 and area code 770.