It seems like it should be very easy, but it's trickier than you think.
It's a safe bet that faced with a map of New Jersey with the county borders outlined, that any state resident worth their salt could point to the county where they live.
But is it so simple when you take away the state outline and just leave individual county borders? Sure, Cape May is likely a gimme. Perhaps Sussex is an easy get too, but what about the rest?
While putting together a collection of county silhouettes for another project, I was surprised by how often I was mixing up my New Jersey geographies.
Taken out of context, suddenly Monmouth looked a lot like Salem. Union and Essex were strikingly similar. And Mercer County looked alien to me.
It could very well be that my state geography game is no longer on point, so I put it to you: Can you name New Jersey's counties on sight alone? Technical constraints kept us from showing all 21, but there are 18 here that are waiting for you to weigh in.
Take the quiz below to find out.
NJ Advance Media reporter John Shabe contributed to this article. Stephen Stirling may be reached at sstirling@njadvancemedia.com. Follow him on Twitter @sstirling. Find him on Facebook.