public static FipsSubCountyEntry GetSubCounty(string subCountyCode) { if (!string.IsNullOrEmpty(subCountyCode)) { if (subCountyCode.ToUpper() == "N") { return(NotApplicableSubCounty()); } return(FipsSubCodes.FirstOrDefault(s => s.SubCountyCode == subCountyCode) ?? UnknownSubCounty(subCountyCode)); } return(UnknownSubCounty("Unspecified")); }