Скачать или смотреть Geocoding Using Census GEO IDs in Tableau | GIS & Data Visualization Tutorial

Learn how to use Census GEO IDs to fix missing or mismatched locations in Tableau maps. 🌍 In this video, we walk through an example of using county GEO IDs to accurately map unemployment data. Learn how to clean GEO IDs, assign Geographic Roles, and eliminate unknown values so Tableau correctly identifies all U.S. counties. Perfect for anyone working with GIS, Data Science, Census data, or Tableau mapping projects.

This video explains how to use Geoids for geocoding in Tableau. Geoids are unique geographic identifiers created by the Census Bureau that act as a universal reference for different geographic areas, from states to census blocks (0:10).

The video demonstrates how using county names alone in Tableau can lead to "unknown values" because county names are not unique (e.g., Dallas County exists in multiple states) (1:16). The solution is to use Geoids, which are standardized five-digit codes for counties where the first two digits represent the state and the last three represent the county (1:37, 1:40, 1:46). By setting the geographic role of the Geoid field to "county" in Tableau, you can accurately map all counties without missing values (2:16, 2:23).

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