ZIP Code Tabulation Areas (ZCTAs)

ZIP Code Tabulation Areas (ZCTAs) are generalized representations of United States Postal Service (USPS) ZIP Code service areas.

The USPS ZIP Codes identify the individual post office or metropolitan area delivery station associated with mailing addresses. USPS ZIP Codes are not areal features but a collection of mail delivery routes.

Querying over HTTP

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

curl https://data.splitgraph.com/sql/query/ddn \
    -H "Content-Type: application/json" \
    -d@-<<EOF
{"sql": "
    SELECT *
    FROM \"mydata-iowa-gov/zip-code-tabulation-areas-zctas-4nkg-rrrc\".\"zip_code_tabulation_areas_zctas\"
    LIMIT 100 
"}
EOF

See the Splitgraph documentation for more information.