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Chyangra goat is important in the crop-livestock farming system for poverty reduction, livelihood, and nutritional security for smallholder farmers at high altitudes in Nepal. These goats are mainly raised for meat, fiber, and as pack animals. The study primarily aims to assess the effect of non-genetic factors on the growth performance and quality of fiber of Chyangra goats in different rural municipalities of the Mustang district. Kagbeni village of lower Mustang; and Lomanthang and Charang village of upper Mustang were the sampling sites. Chyangra fiber length was measured using a measuring pad and ruler and fiber diameter was analyzed using the Optical Projection Microscope Method whereas weight of different age groups was measured using a digital weighing balance. The fixed effect model was used to analyze the least square mean for fiber length, diameter, and weight from different sexes, locations, and age groups. The overall least square mean and standard error for fiber diameter and fiber length were 1 5.4±0.7 µm and 44.2±0.2 mm respectively. In contrast, the body weight of 530 Chyangra for one, two, three, four and more than four years were 12.4, 18.7, 23.9, 26.3 and 20.0 kg respectively. Males were heavier than females in all age groups. The results exhibited a wide variation in growth performance and fiber quality parameters indicating the potentiality to improve Chyangra growth rates and fiber quality by adopting proper management and selection methods.