Created
July 29, 2021 18:22
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WITH | |
counties AS ( | |
SELECT | |
a.total_pop, | |
b.* | |
FROM | |
`bigquery-public-data.census_bureau_acs.county_2018_1yr` a | |
JOIN | |
`bigquery-public-data.geo_us_boundaries.counties` b | |
USING | |
(geo_id) ) | |
SELECT | |
state_fips_code, | |
st_union_agg(county_geom) AS geom | |
FROM | |
counties | |
# exclude counties with less than 500 people per square mile | |
WHERE | |
(total_pop/(st_area(county_geom)/2.59e+6)) > 500 | |
GROUP BY | |
state_fips_code |
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