| Summary Level | Description | Example URLs |
|---|---|---|
| 040 | state | http://api.census.gov/data/1990/sf1?get=P0010001&for=state:06 http://api.census.gov/data/1990/sf1?get=P0010001&for=state:* http://api.census.gov/data/1990/sf1?get=P0010001&gnis=state:01779775 |
| 050 | state-county | http://api.census.gov/data/1990/sf1?get=P0010001&for=county:001&in=state:02 http://api.census.gov/data/1990/sf1?get=P0010001&for=county:*&in=state:02 http://api.census.gov/data/1990/sf1?get=P0010001&for=county:* http://api.census.gov/data/1990/sf1?get=P0010001&gnis=county:00161526 |
| 140 | state-county-tract | http://api.census.gov/data/1990/sf1?get=P0010001&for=tract:400100&in=state:06+county:001 http://api.census.gov/data/1990/sf1?get=P0010001&for=tract:*&in=state:06+county:001 |
| 150 | state-county-tract-block group | http://api.census.gov/data/1990/sf1?get=P0010001&for=block+group:1&in=state:06+county:001+tract:400100 http://api.census.gov/data/1990/sf1?get=P0010001&for=block+group:*&in=state:06+county:001+tract:400100 |
| 160 | state-place | http://api.census.gov/data/1990/sf1?get=P0010001&for=place:05750&in=state:02 http://api.census.gov/data/1990/sf1?get=P0010001&for=place:*&in=state:02 http://api.census.gov/data/1990/sf1?get=P0010001&for=place:* http://api.census.gov/data/1990/sf1?get=P0010001&gnis=place:02405187 |