Place identity or place-based identity refers to a cluster of ideas about place and identity in the fields of geography, urban planning, urban design, landscape architecture, environmental psychology, ecocriticism and urban sociology/ecological sociology. Place identity is sometimes called urban character, neighbourhood character or local character. Place identity has become a significant issue in the last 25 years in urban planning and design. Place identity concerns the meaning and significance of places for their inhabitants and users, and how these meanings contribute to individuals' conceptualizations of self. Place identity also relates to the context of modernity, history and the politics of representation. In other words, historical determinism, which intersects historical events, social spaces and groups by gender, class, ethnicity. In this way, it explores how spaces have evolved over time by exploring the social constructs through time and the development of space, place and power. To the same extent, the politics of representation is brought into context, as the making of place identity in a community also relates to the exclusion or inclusion in a community. Through this, some have argued that place identity has become an area for social change because it gives marginalized communities agency over their own spaces. In the same respect, it is argued that place identity has also been used to intervene social change and perpetuate oppression from a top-down approach by creating segregated spaces for marginalized communities.
In some ways it is related to the concepts of place attachment and sense of place. Place identity is largely related to the concepts of community formation because it recognizes that geographical spaces do not solely bond a community together but rather there are social bonds that account for community formation. Those social forces often are feelings of belonging and security, which involve theoretical formations of community. Theoretical formations of community, which were identified in Community: Seeking Safety in an Insecure World as bonds formed by similar locality, culture, language, kinship and/or experiences. In addition, identity also conceives feelings of security and freedom as one is able to self-identify and especially, when it comes to being able to foster agency over community formation. In addition, the similar and shared experiences of culture, language and locality foster the sense of community. This fostering of community is largely seen as an extension of agency because when a community is able to achieve a sense of place and place attachment, this allows for individuals to reinforce their own identities and strengthen their bonds within their community.
In a study by Lee Cuba and David M. Hummon, they focus on Cape Cod, Massachusetts residents and how social and environmental factors are associated with place identity. Place identity in regards to "at-homeness" was defined by existence, affiliations, and locus. Community members were asked if they feel at home in Cape Cod to measure the positive responses for existence. The open-ended responses to why community members feel at home were used to measure place affiliation. A close-ended question, "Do you associate feeling at home with living in this particular house or apartment, with living in this community, or with living on the Cape, in general?" was used to measure locus. Most respondents reported they did feel "at home".
Michigan and the Great Lakes are analyzed to see the values and connections shared within the residents of Michigan. A questionnaire was given to Michigan residents to see how attached the residents are. The questionnaire consisted of statements and the statements were evaluated through the five-point Likert scale. As a result, the data revealed "Michigan's voters have developed a strong sense of place regarding the state". These two case studies shows that place has a lot more to offer than just a physical location. Understanding how to measure a sense of place assist policy makers in decision making and creating potential policy implementation. They will take the community's issues into consideration during the planning process once they understand the values of a community.