18974 is a Postal Code in United States of America.
- 18974 a.k.a. Hunnemannia is a monotypic genus of flowering plants in the poppy family Papaveraceae, containing the single species H. fumariifolia native to the highlands of Mexico. It is typically found at elevations of 1,500–2,000 m in the Chihuahuan Desert and south into central Mexico, where it favors rocky habitats, occurring along roadsides as well.
- 18974 a.k.a. The Lawrenceville Stories is a TV mini-series.