CREATE TABLE table_65004 ("Municipality" TEXT, "FIPS code" FLOAT, "Founded" FLOAT, "Population  ( 2010 ) " FLOAT, "Area" TEXT)

What is the FIPS code for the municipality that has an area of 114.76 sq mi (297.23 sq km) and had a 2010 population of less than 166,327?
SELECT AVG("FIPS code") FROM table_65004 WHERE "Area" = '114.76 sq mi (297.23 sq km)' AND "Population (2010)" < '166,327'
SELECT AVG("FIPS code") FROM "table_65004" WHERE "Area" = '114.76 sq mi (297.23 sq km)' AND "Population (2010)" < '166,327'