How many Area's are there for Armstrong?
CREATE TABLE "list" (
  "name" text,
  "corporate_name" text,
  "regional_district" text,
  "incorporation_date_city" text,
  "population_2011" real,
  "population_2006" real,
  "change_pct" text,
  "area_km" text,
  "population_density" text
);
SELECT COUNT("area_km") FROM "list" WHERE "name"='Armstrong';