This paper studies the influence of incorporating Juncus fibers into compressed earth blocks (CEBs). CEB composites were manufactured with earth filled by Juncus fibers reinforcement (0 to 0.8% by weight), and compressed at 10 MPa with a compaction loading press. After 28 days of drying, the CEBs underwent diverse experimental tests to evaluate their physical, mechanical, and durability properties. The findings indicated that incorporating fibers led to a diminution in unit weight, ultrasonic pulse velocity, and dry compressive strength. Despite the drop in mechanical strength, CEBs with higher fiber content (0.4%) demonstrated satisfactory abrasion resistance, which could play a crucial role in areas prone to extreme weather events. According to this experimental investigation, this material has the potential as a promising composite for building materials and reduces the need for chemical stabilizers, which is considered a major contributor to greenhouse gas emissions in the construction industry. The results have implications for affordable housing solutions and offer insightful information about sustainable building materials.