{ "culture": "en-US", "name": "Residents65YearsofAgeorGreater300288", "guid": "ADCB25AC-9F2A-462F-A629-196CE770CDFA", "catalogPath": "", "snippet": "This layer uses US Census Block Groups as geographic units. It is populated with current demographic data from ESRI Inc which is partially based on data from the US Census.", "description": "US Census Block Group areas use boundaries from the most recent census and population estimates for the current year. A Census Block Group is a geographical unit used by the U.S. Census Bureau to summarize population statistics. It is comprised of several Census Blocks. A Block Group is also a sub-unit of the larger Census Tract. Block Groups generally contain between 600 and 3,000 people.\u200b