St. Louis Region
Open Data is the City's dataset starting point
St. Louis City's Open Data portal groups datasets by topic, format, and department, which helps residents find official data before relying on screenshots or old spreadsheets.
A St. Louis map screenshot ages fast. The City’s Open Data portal is the better starting point when a question depends on a dataset rather than a one-off image or an old spreadsheet.
The portal groups public data by topic, department, and format. It is where a resident can start for city layers such as neighborhood boundaries, building permits, service requests, property taxes, or Census summary tables from years like 2000, 2010, and 2020. Each dataset still needs its own read: description, update pattern, owning department, and any limits on what the data can prove.
Open Data is a trailhead, not the final authority for every errand. A permit file, tax bill, deed, court record, or written city determination can still outrank a dataset when the question is about one address.
References
Where this fits: this note belongs to St. Louis City. See every local note for the county on its page.