Answer:
An ecosystem is defined as a community where biotic and abiotic components interact with each other through nutrient cycles and energy flows.
Yes, I think my town or neighborhood has an ecosystem because in my surrounding there are many living organism as well as non living and both are interacting with each other for their survival.
For example: plants in my neighborhood act as producers which are consumed by many animals like humans, cow, insects (consumers). Bacteria and worms (decomposers) present in ecosystem decomposes the dead material like plant waste or animal waste.
Humans play role of consumers in this ecosystem as they consume plants as food and interact with abiotic components such as air and water for other body functions as well.