The CensusMapper API is still in beta, feedback is welcome.
Before being able to download data you will need to register for an account and log in. API requests are limited in volume, please contact us if you need a larger quota.
You can select specific geographic regions, like Census Divisions, Census Subdivisions or Census Metropolitan Areas.
To change the census aggregation level zoom the map or select the desired level from the list above.
Click on regions to select or de-select them.
Select on the blue census topic bars to expand or contract the list, or use the search field to find specific census variables.
Click on variable key to add it to (or remove it from) the list of desired variables.