What this tracks
This dataset defines the geographic boundaries of ZIP Code Tabulation Areas (ZCTAs) in Missouri, which approximate USPS ZIP code service areas for mail delivery.
Why it matters to you
If you’re opening a small business in Missouri, this data helps you verify which ZIP code your storefront actually falls under — which affects your marketing mailers and delivery zone maps. Residents can use it to confirm their correct voting district or school zone when ZIP code boundaries don’t match municipal lines. The centroid coordinates help apps calculate accurate delivery estimates.
How to read this data
zcta5ce — The 5-digit ZIP code (e.g., 65279 for a Columbia area).
aland — Land area in square meters (e.g., 123520318 is ~123.5 km²).
intptlat/intptlon — Latitude/longitude of the ZIP code’s center point (e.g., 39.0174497, -92.5317046 for mid-Missouri).
Try it yourself
Check where your home or business falls by comparing your address to the ZCTA boundaries on Missouri’s open data portal map viewer.