(10 ILCS 91/10.1)
Sec. 10.1. Representative District No. 1. Representative District No. 1 is comprised of: District: 1 Cook County Tract: 560100 Blockgroup: 1 Block 1017 Block 1018 Block 1019 Block 1023 Block 1024 Block 1025 Block 1026 Block 1027 Block 1028 Block 1029 Block 1030 Block 1031 Block 1032 Block 1033 Block 1034 Block 1035 Block 1036 Block 1037 Block 1038 Block 1039 Block 1040 Block 1041 Block 1042 Block 1043 Block 1044 Block 1045 Block 1046 Block 1047 Block 1048 Block 1049 Block 1050 Tract: 560200 Blockgroup: 1 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Blockgroup: 2 Blockgroup: 3 Tract: 560300 Tract: 560400 Tract: 560700 Blockgroup: 2 Block 2009 Block 2010 Block 2011 Block 2012 Block 2013 Block 2014 Block 2015 Block 2016 Block 2017 Block 2018 Block 2019 Block 2020 Block 2021 Block 2022 Block 2035 Block 2036 Block 2037 Block 2038 Tract: 560800 Blockgroup: 1 Block 1000 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Block 1016 Block 1017 Block 1018 Block 1019 Block 1020 Block 1021 Block 1022 Block 1023 Block 1024 Block 1025 Block 1026 Block 1027 Blockgroup: 2 Block 2000 Block 2001 Block 2002 Block 2003 Block 2004 Block 2005 Block 2006 Block 2007 Block 2008 Block 2009 Block 2010 Block 2011 Block 2012 Block 2013 Block 2014 Block 2015 Block 2016 Block 2017 Block 2018 Block 2019 Block 2020 Block 2021 Block 2022 Block 2023 Block 2024 Block 2025 Block 2026 Blockgroup: 3 Block 3000 Block 3001 Block 3002 Block 3003 Block 3004 Block 3005 Block 3006 Block 3007 Block 3008 Block 3009 Block 3010 Block 3011 Block 3012 Block 3013 Block 3014 Block 3015 Block 3016 Block 3017 Block 3018 Block 3019 Block 3020 Blockgroup: 4 Block 4000 Block 4001 Block 4002 Block 4003 Block 4004 Block 4005 Block 4006 Block 4007 Block 4008 Block 4009 Block 4010 Block 4011 Block 4012 Block 4013 Block 4014 Block 4015 Block 4016 Block 4017 Blockgroup: 5 Block 5000 Block 5001 Block 5002 Block 5003 Block 5004 Block 5005 Block 5006 Block 5007 Block 5008 Block 5009 Block 5010 Block 5011 Block 5012 Block 5013 Block 5014 Block 5015 Block 5016 Block 5017 Block 5018 Block 5019 Block 5020 Block 5021 Block 5022 Block 5023 Block 5024 Block 5025 Block 5026 Tract: 560900 Blockgroup: 1 Blockgroup: 2 Blockgroup: 3 Block 3000 Block 3001 Block 3022 Block 3023 Tract: 561000 Blockgroup: 1 Block 1001 Block 1002 Block 1003 Block 1004 Block 1011 Block 1012 Blockgroup: 2 Block 2000 Block 2001 Block 2002 Block 2003 Block 2004 Block 2005 Block 2006 Blockgroup: 3 Block 3000 Block 3001 Tract: 570100 Blockgroup: 1 Block 1001 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Block 1016 Block 1017 Block 1018 Block 1019 Block 1020 Block 1021 Block 1022 Block 1023 Block 1024 Block 1025 Block 1026 Block 1027 Block 1028 Block 1029 Block 1030 Block 1031 Block 1032 Block 1033 Block 1034 Block 1035 Tract: 570200 Blockgroup: 1 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Block 1016 Block 1017 Block 1018 Block 1019 Block 1020 Block 1021 Block 1022 Block 1023 Block 1024 Block 1025 Block 1026 Block 1027 Block 1028 Block 1029 Block 1030 Block 1031 Block 1032 Block 1033 Block 1034 Block 1035 Block 1036 Block 1037 Block 1038 Block 1039 Block 1040 Block 1041 Block 1042 Block 1043 Block 1044 Block 1045 Block 1046 Block 1047 Block 1048 Block 1049 Block 1050 Block 1051 Block 1052 Block 1053 Block 1054 Tract: 570300 Tract: 570400 Tract: 570500 Blockgroup: 1 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Block 1016 Block 1017 Block 1019 Block 1020 Block 1021 Blockgroup: 2 Tract: 580400 Tract: 580501 Blockgroup: 1 Block 1010 Tract: 580502 Blockgroup: 1 Blockgroup: 2 Block 2002 Block 2003 Block 2004 Block 2005 Block 2006 Block 2007 Block 2008 Block 2009 Block 2010 Blockgroup: 3 Block 3025 Block 3026 Block 3027 Block 3028 Block 3029 Block 3030 Tract: 580600 Blockgroup: 4 Block 4004 Block 4005 Block 4006 Tract: 580700 Blockgroup: 1 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Tract: 580800 Blockgroup: 1 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Tract: 611500 Blockgroup: 2 Block 2001 Block 2002 Block 2003 Block 2004 Block 2005 Block 2006 Block 2007 Block 2008 Block 2009 Block 2010 Block 2011 Block 2012 Block 2013 Block 2014 Block 2015 Block 2016 Block 2017 Block 2022 Block 2027 Block 2028 Block 2029 Block 2030 Block 2031 Block 2032 Block 2033 Tract: 611600 Tract: 620100 Blockgroup: 1 Block 1000 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Block 1016 Block 1017 Block 1018 Block 1019 Block 1020 Block 1021 Block 1022 Block 1023 Block 1024 Block 1025 Block 1026 Block 1027 Block 1028 Block 1029 Blockgroup: 2 Block 2000 Block 2001 Block 2002 Tract: 620200 Blockgroup: 1 Block 1003 Blockgroup: 2 Block 2008 Block 2009 Tract: 630100 Tract: 630200 Tract: 630300 Blockgroup: 1 Block 1000 Block 1001 Block 1002 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1014 Block 1015 Blockgroup: 2 Block 2000 Block 2005 Block 2006 Tract: 630400 Tract: 630500 Tract: 630800 Tract: 660301 Tract: 660302 Tract: 660400 Blockgroup: 2 Block 2000 Block 2001 Block 2004 Block 2005 Block 2008 Block 2009 Block 2012 Block 2013 Block 2014 Block 2015 Blockgroup: 3 Block 3012 Block 3013 Block 3014 Block 3015 Tract: 660500 Blockgroup: 1 Blockgroup: 2 Blockgroup: 3 Block 3000 Block 3001 Block 3002 Block 3004 Block 3005 Block 3006 Block 3007 Block 3008 Block 3009 Block 3010 Block 3011 Block 3012 Block 3013 Block 3015 Block 3016 Block 3017 Block 3018 Blockgroup: 4 Block 4000 Block 4001 Block 4002 Block 4003 Block 4004 Block 4005 Block 4006 Block 4007 Block 4008 Block 4009 Block 4010 Block 4011 Block 4012 Block 4014 Block 4015 Block 4016 Block 4017 Block 4018 Block 4019 Tract: 660600 Blockgroup: 3 Block 3002 Block 3007 Block 3008 Block 3009 Blockgroup: 4 Blockgroup: 5 Tract: 660800 Blockgroup: 3 Block 3004 Block 3008 Block 3009 Block 3010 Blockgroup: 4 Blockgroup: 5 Tract: 660900 Blockgroup: 3 Block 3010 Block 3011 Block 3038 Block 3039 Tract: 661100 Blockgroup: 2 Block 2016 Blockgroup: 4 Block 4000 Block 4001 Block 4002 Block 4003 Block 4004 Block 4005 Block 4009 Block 4010 Block 4011 Block 4012 Block 4013 Block 4014 Blockgroup: 5 Block 5000 Block 5001 Block 5002 Block 5003 Block 5004 Block 5005 Block 5006 Block 5007 Block 5009 Block 5010 Block 5013 Block 5014 Tract: 820800 Blockgroup: 1 Blockgroup: 2 Blockgroup: 3 Block 3056 Block 3057 Tract: 835000 Blockgroup: 1 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1012 Block 1013 Blockgroup: 3 Block 3000 Block 3001 Block 3002 Block 3003 Block 3004 Block 3005 Block 3006 Block 3007 Block 3008 Block 3009 Blockgroup: 5 Block 5000 Block 5001 Block 5002 Block 5003 Block 5004 Block 5005 Block 5006 Block 5007 Block 5008 Tract: 835100 Tract: 835200 Blockgroup: 1 Block 1000 Block 1001 Block 1002 Block 1003 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Block 1010 Block 1011 Block 1012 Block 1013 Block 1032 Block 1033 Block 1034 Block 1049 Tract: 842800 Blockgroup: 1 Block 1000 Block 1001 Block 1002 Block 1004 Block 1005 Block 1006 Block 1007 Block 1008 Block 1009 Blockgroup: 2 Block 2004 Block 2005 Block 2006 Block 2007 Block 2008 Block 2009 Block 2010 Block 2011 Blockgroup: 3 Blockgroup: 4 Block 4000 Block 4001 Block 4002 Block 4003 Block 4004 Block 4005 Block 4006 Block 4007 Block 4008 Block 4009 Block 4010 Block 4011 Block 4012 Block 4013 Block 4014 Block 4015 Block 4016 Block 4017 Block 4018 Block 4019 Block 4020 Block 4021 Block 4022 Block 4023 Block 4024 Block 4025 Block 4026 Block 4027 Block 4030 Block 4031 Block 4032 Block 4034 Block 4035 Block 4036 Block 4037 Block 4038 Block 4039 Blockgroup: 5 Block 5002 Block 5003 Block 5004 Block 5005 Block 5006 Block 5007 Block 5008 Block 5009 Block 5010 Blockgroup: 6
(Source: P.A. 97-6, eff. 6-3-11.)