CREATE TABLE table_204_87 (id DECIMAL, "courthouse" TEXT, "city" TEXT, "street address" TEXT, "jurisdiction" TEXT, "dates of use" TEXT, "named for" TEXT)

which jurisdiction has the most courthouses ?
SELECT "jurisdiction" FROM table_204_87 GROUP BY "jurisdiction" ORDER BY COUNT("courthouse") DESC LIMIT 1
SELECT "jurisdiction" FROM "table_204_87" GROUP BY "jurisdiction" ORDER BY COUNT("courthouse") DESC NULLS LAST LIMIT 1