What is the block number for 74th Street / I-240?

• A. 7500 S
• B. 7400 N
• C. 7400 S
• D. 7400 E

Answer: (C)

In Oklahoma City, block numbers show how far a street is from downtown, with N or S indicating north or south of the baseline and E or W indicating east or west. A north–south street like 74th runs along the grid in a north–south direction, so its block number uses a direction suffix. Since 74th Street is south of downtown, the correct block designation is 7400 S.

Why not the others? 7400 N would place it north of downtown, which isn’t the case. 7400 E would imply an east–west street, which 74th is not. 7500 S would be 75th Street, not 74th.