| us | 01 | https://api.census.gov/data/1990/cbp?get=GEO_TTL,SIC_TTL,EMP,ESTAB&for=us:*&key=YOUR_KEY_GOES_HERE | |
| https://api.census.gov/data/1990/cbp?get=GEO_TTL,SIC_TTL,EMP,ESTAB&for=us:00&key=YOUR_KEY_GOES_HERE | |
| state | 02 | https://api.census.gov/data/1990/cbp?get=GEO_TTL,SIC_TTL,EMP,ESTAB&for=state:*&key=YOUR_KEY_GOES_HERE | |
| https://api.census.gov/data/1990/cbp?get=GEO_TTL,SIC_TTL,EMP,ESTAB&for=state:01&key=YOUR_KEY_GOES_HERE | |
| state› county | 03 | https://api.census.gov/data/1990/cbp?get=GEO_TTL,SIC_TTL,EMP,ESTAB&for=county:*&key=YOUR_KEY_GOES_HERE | |
| https://api.census.gov/data/1990/cbp?get=GEO_TTL,SIC_TTL,EMP,ESTAB&for=county:*&in=state:*&key=YOUR_KEY_GOES_HERE | |
| https://api.census.gov/data/1990/cbp?get=GEO_TTL,SIC_TTL,EMP,ESTAB&for=county:075&in=state:06&key=YOUR_KEY_GOES_HERE | |