What is the highest population of Deuel county's 1,819 households?
CREATE TABLE "south_dakota_counties_by_per_capita_inco" (
  "county" text,
  "per_capita_income" text,
  "median_household_income" text,
  "median_family_income" text,
  "population" real,
  "number_of_households" real
);
SELECT MAX("population") FROM "south_dakota_counties_by_per_capita_inco" WHERE "county"='deuel' AND "number_of_households"<'1,819';