Concrete is one of the most commonly used construction materials, but it is being questioned for its environmental impact and durability. Researchers are looking into ways to make concrete more sustainable while also improving its durability performance by incorporating various supplementary cementitious materials (SCMs). The present study is focused on determining the behavior of blended concrete with the incorporation of natural zeolite at replacement levels of 0–20%. Two different mix grades (M20 and M40) are designed in this investigation in order to ascertain the performance of concrete with different mix proportions. In this investigation, durability properties like water absorption and acid attack are ascertained with the variation of the natural zeolite content. The 10% replacement of cement with natural zeolite has performed superiorly in terms of strength and durability aspects. The findings highlight the possibility of creating eco-friendly concrete mixes by incorporating natural zeolite that not only lessen carbon emissions but also show better durability, tackling the issues of sustainability and longevity in infrastructure construction.