[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],["The US Census Bureau provides TIGER geodatabases, including 2010 and 2020 data. These datasets detail census blocks, which are roughly city blocks, and census block groups, clusters within tracts. The 2010 census blocks contain over 11 million features, while the 2020 blocks contain over 8 million. Additionally, there are census tracts for 2020, each representing an urban neighborhood and comprising over 85,000 polygon features.\n"]]
