Urban green spaces are a part of every city. Urban green spaces keep the environment clean and help sustainability. Modern urbanization changes the environment. Modern urbanization reduces spaces and threatens human well‑being. The municipality of Medinipur is an urban center, in West Bengal. The municipality of Medinipur loses spaces. To study the spaces of the municipality of Medinipur, we used the Urban Greenness Index (UNGI). Our analysis of the UNGI, by sector showed differences in the quality. Spread of the green spaces. Sector 25 recorded the UNGI. The UNGI in sector 25 points to spaces. Sector 15 is an area. Recorded the lowest average UNGI. The UNGI in sector 15 points to a lack of spaces. Sector 15 also showed the difference in the UNGI values between semi public lands. The UNGI differences, in sector 15 show that the green spaces are not even. When I looked at the data, I saw that sector 13 which’s mostly lands showed the least variation, in the UNGI values; that shows a spread of the green spaces. The study highlighted the areas that lack the spaces and that could use more green spaces. Districts 9 and 24 had UNGI values of 0.710 and 0.711. The standard deviations of 0.137 and 0.141 showed differences, in the quality of the spaces. The mean scores were similar. This highlights the importance of considering both average UNGI values and their variability when assessing urban green spaces. By identifying areas with insufficient green spaces and those with potential for improvement, our analysis can inform targeted green-space initiatives and urban planning strategies to improve the city’s overall sustainability and quality of life. These results can guide policymakers in prioritizing areas for green infrastructure development and optimizing resource allocation for maximum impact.