Quick answer
Mouses (Mus musculus) typically live around About 1 year wild (2–3 in captivity). Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
Key takeaway
Mouses (Mus musculus) typically live around About 1 year wild (2–3 in captivity). Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
Mouse lifespan in the wild
Field and museum records place most mouses near About 1 year wild (2–3 in captivity). That figure blends ages at death across regions, so treat it as a planning range. Body size (12–30 g (0.4–1 oz)) and risk lifestyle both shape the average.
What shortens mouse lives
Predation, infectious disease, injury, food shortages, and habitat fragmentation cut survival. Roadkill and human conflict matter wherever mouses share landscapes with people.
What helps mouses live longer
Connected habitat, low chronic stress, and reliable food support longevity. For captive or domestic relatives, species-correct diet and veterinary screening matter more than generic “pet” advice.
Mouse life stages
Juveniles usually face higher mortality than prime adults. Older animals may move less, show dental wear, or lose body condition — useful signs when ageing mouses in the field.
Living alongside people
Originally from Asia, the house mouse has followed humans across the entire planet, thriving in homes, farms, warehouses, and fields. It feeds opportunistically on seeds, grains, and almost any human food, and its success as a commensal animal — one that lives with people — has made it both a common pest and the most widely used mammal in scientific and medical research.
Conservation
The house mouse is listed as Least Concern and is one of the most abundant mammals in the world. Far from being threatened, it is often controlled as a pest because it contaminates stored food and can spread disease. Native wild mice such as the wood mouse share similar habits but live mainly in fields and woodland rather than buildings.
Sources
Mouse FAQs
How long do mouses live?
Mouses (Mus musculus) typically live around About 1 year wild (2–3 in captivity). Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
What is the scientific name of the mouse?
Mus musculus — used in research and conservation listings for mouses.
What do mouses eat?
Mouses eat mainly seeds and grains, with seasonal and regional variation in Buildings, fields, and grassland worldwide.
Where do mouses live?
They are associated with Buildings, fields, and grassland worldwide. Local presence depends on food, cover, and human land use.
What is the conservation status of mouses?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.