Zip Codes within Dallas City Limits

ESRI Curated Zipcodes were clipped by the most recent version of the Dallas City Limits. These Zipcodes are being used in applications and maps for different purposes. Any time a Zipcode is the desired analysis geometry. However, zipcodes are NOT optimal for analysis, but should be used carefully. More data below: Zipcodes are an approximation of delivery routes from the Postal Service. There is not an authoritative GIS layer for Postal Zipcodes, but an approximation at best. Numerous articles exist. One is here: https://carto.com/blog/zip-codes-spatial-analysis/ explaining the reason why zipcodes are not good for geospatial analysis.