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.
Locally, the zip code for the Fayetteville area had the highest score in Onondaga County. The median income for the area ($88,721 a year) and number of college graduates (67 percent) were both the largest in the region. Around 10 miles away, the zip code for part of Syracuse's west side had the lowest score. Its median income ($27,514 a year) is around a third of Fayetteville's, and its percentage of college graduates (15 percent) is around four times smaller. Check out below how your hometown stacks up: