Elections Code section 21409

Congressional District 09 consists of the following:
Partial Counties in Congressional District 09
CONTRA COSTA
Whole Tracts in Contra Costa County
3010.00, 3020.06, 3020.09, 3050.00, 3060.03, 3060.04, 3071.01, 3071.02, 3072.01, 3072.02, 3072.04, 3072.05, 3080.01, 3080.02, 3090.00, 3100.00, 3110.00, 3120.00, 3131.02, 3131.04, 3131.05, 3131.07, 3132.06, 3551.09, 3551.10, 3551.11, 3551.18, 3551.20
Partial Tracts in Contra Costa County
3020.05--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 3000, 3001, 3002, 3003, 3005, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007
3020.07--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2031, 2032, 2033, 2035, 2036, 2037, 2038, 2039, 2040, 2041
3020.11--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034
3020.13--the following census blocks:
1000, 2012, 2013
3032.06--the following census blocks:
2006, 2007, 2008
3032.07--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008
3060.02--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2031, 2032, 2033, 2034, 2035, 2036, 2037, 2038, 2041, 2043, 2044
3131.06--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2014, 2022, 2023, 2024, 2025, 2026, 2027, 2029, 2030, 2031
3132.03--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1008, 1009, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013, 2014, 2015
3132.04--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2010, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010
3132.05--the following census blocks:
1000, 1005, 1006, 1007, 1008
3141.02--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1018, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, 2010, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 3021
3141.06--the following census blocks:
2000, 2001
3551.07--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011, 3012, 3013
3551.19--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1014, 1015, 1016, 1017, 1018, 1020, 1024, 1025, 1026, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
3552.01--the following census blocks:
1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011
3552.02--the following census blocks:
1001, 1016, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2022, 2037, 2038, 2039, 2040, 2041
SAN JOAQUIN
Whole Tracts in San Joaquin County
0004.01, 0004.02, 0009.00, 0010.00, 0011.01, 0011.02, 0012.00, 0013.00, 0014.00, 0015.01, 0031.06, 0031.08, 0031.09, 0031.10, 0031.11, 0031.12, 0031.15, 0031.16, 0031.17, 0031.18, 0031.19, 0032.03, 0032.05, 0032.09, 0032.10, 0032.13, 0032.14, 0032.15, 0032.16, 0032.17, 0032.18, 0032.19, 0033.05, 0033.06, 0033.07, 0033.08, 0033.10, 0033.11, 0033.12, 0033.13, 0034.03, 0034.04, 0034.05, 0034.06, 0034.07, 0034.09, 0034.10, 0035.01, 0035.02, 0035.03, 0035.04, 0036.01, 0036.02, 0038.04, 0038.05, 0038.06, 0038.08, 0040.03, 0040.04, 0041.07, 0044.02, 0051.08, 0051.09, 0051.23, 0051.24, 0051.25, 0051.26, 0051.31, 0051.32, 0051.33, 0051.34, 0051.35, 0051.36, 0051.37, 0051.38, 0051.39, 0051.40, 0051.41, 0052.08, 0052.11, 0052.12, 0052.13, 0052.15, 0052.16, 0052.17, 0052.18, 0052.19, 0052.20, 0052.21, 0052.22, 0052.23, 0052.24, 0052.25, 0053.03, 0053.07, 0053.08, 0053.09, 0053.10, 0053.11, 0053.12, 0054.03, 0054.05, 0054.06, 9800.00
Partial Tracts in San Joaquin County
0001.02--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
0003.00--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1025, 1026, 1027, 1028, 1029, 1030, 1031
0005.00--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037
0008.02--the following census blocks:
1001, 1002, 1023, 1025, 1026, 1027, 1028, 1029, 1030, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1050, 1051, 1052, 1090, 1091, 1093, 1094, 1095
0008.03--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017
0015.02--the following census blocks:
1021, 1022, 1023, 2001, 2007
0025.03--the following census blocks:
1003, 1004, 1005, 1006, 1007, 1008, 1009, 1012, 1013, 1014, 1015, 1016, 1017
0025.04--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
0027.01--the following census blocks:
1005, 1006, 1012, 1013
0027.02--the following census blocks:
1000
0037.00--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020, 2021, 2022, 2023, 2024
0038.03--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2025, 2027, 2034, 2036, 2037
0038.07--the following census blocks:
1002, 1003, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 2000, 2001, 2002, 2003, 2004, 2005, 2006
0039.00--the following census blocks:
1000, 1001, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1120, 1121, 1122, 1123, 1124, 1125, 1126, 1129, 1130, 1131, 1132, 1133, 1134, 1135, 1136, 1137, 1138, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2031, 2032, 2033, 2034, 2035, 2036, 2037, 2038, 2039, 2040, 2041, 2042, 2043, 2044, 2045, 2046, 2047, 2048, 2049, 2050, 2051, 2052, 2053, 2054, 2055, 2056, 2057, 2058, 2059, 2060, 2061, 2062, 2063, 2064, 2065
0040.01--the following census blocks:
1097, 1098, 1099, 1108
0041.06--the following census blocks:
1027, 1028, 1029, 1038, 1039, 1042, 1044, 1045, 1046, 1048
0041.08--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 3022, 3023, 3024, 3025, 3026, 3027, 3028, 3029, 3030, 3031, 3032, 3033, 3034, 3035, 3036, 3037, 3038, 3039, 3040, 3041, 3042, 3043, 3044, 3045, 3046, 3047, 3048, 3049, 3050, 3051, 3052, 3053, 3054, 3055, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, 4009, 4010, 4011, 4012, 4013, 4014, 4015, 4016, 4017, 4018, 4019, 4020, 4021, 4022, 4023, 4024, 4025, 4026, 4027, 4028, 4029
0043.02--the following census blocks:
4004, 4005, 4032, 4033
0043.07--the following census blocks:
2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 3006, 3007
0043.08--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 2000, 2001, 2002, 2003, 2004, 2005, 3000, 3001, 3002, 3004, 3005, 3006
0044.03--the following census blocks:
1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019
0044.04--the following census blocks:
1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 3003, 3004, 3005, 3008, 3009
0045.02--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011, 2022, 2023, 3006, 3009, 3010, 3011, 3012, 3020
0046.00--the following census blocks:
4015, 4016, 4017, 4023, 4024, 4025, 4026, 4027, 4028
0047.04--the following census blocks:
3001, 3002, 3003, 3007, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3021, 3022, 3023, 4011, 4012, 4013, 4014, 4015, 4016, 4017, 4018, 4020, 4021, 4022, 4023, 4024, 4025, 4026, 4027, 4028, 4029, 4030, 4031, 4032, 4033, 4034, 4035, 4036, 4037, 4038, 4039, 4040, 4041, 4042
0048.00--the following census blocks:
3005, 4038
0050.01--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2031, 2032, 3002, 3003, 3004, 3005, 3007, 3008, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, 4009, 4010, 4011, 4012, 4013, 4014, 4015, 4016, 4017, 4018, 4019, 4020, 4021, 4022, 4023, 4024, 4025, 4026, 4027, 4028
0050.03--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 3005, 3006, 3008, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 3021, 3022, 3023, 3024, 3025, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, 4009, 4010, 4011, 4012, 4013, 4014, 4016, 4017, 4018, 4019, 4020, 4021, 4022, 4023, 4024, 4025, 4026, 4027, 4028, 4029, 4030, 4031, 4032, 4033, 4034, 4035, 4036, 4037, 4038, 4039, 4040, 4041
0050.04--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1013, 1014, 1015, 1016, 1017, 1018, 1020, 1021, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 3021, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, 4009, 4010, 4011, 4012, 4013, 4014, 4015, 4016, 4017, 4018, 4019, 4020, 4021, 4022, 4023, 4024, 4025, 4026, 4027
0051.06--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1029, 1031, 1047, 1048, 1049, 1050, 1051, 1052, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1069, 1070, 1071, 1072, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 3000, 3001, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, 4009, 4010, 4011, 4012, 4013, 4014, 4015, 4016, 4017, 4018, 4019, 4020, 4021, 4022, 4023, 4024, 4025, 4026, 4027, 4028, 4029, 4030, 4031, 4032, 4033, 4034, 4035, 4036, 4037, 4038, 4039, 4040, 4041, 4042, 4043, 4044, 4045, 4046, 4047, 4048, 4049, 4050, 4051, 4052, 4053, 4054, 4055, 4056, 4057, 4058, 4059
0051.19--the following census blocks:
2000, 2001, 2002, 2012, 2013, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2049, 3007, 3008
0051.22--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 3000, 3002, 3015, 3016, 3017, 3018, 3033, 3034, 3035, 3036, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007
0052.14--the following census blocks:
1025, 1026, 1027, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1135, 1136, 1137, 1145, 1146, 1147, 1148, 1149, 1150, 1151, 1152, 1153, 1154, 1155, 1156, 1157, 1164, 1165, 1167, 1168, 1169, 1170, 1171, 1172, 1173, 1174, 1175, 1176, 1177, 1178, 1179, 1180, 1181, 1182, 1183, 1184, 1185, 1186, 1187, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2031, 2032, 2033, 2034, 2035, 2036, 2037, 2038, 2039, 2040, 2041, 2042, 2043, 2044, 2045
0055.02--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1011, 1012, 1013, 1014, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1066, 1067, 1068, 1069, 1095, 1139, 1140, 1141, 1142, 1144, 1145, 1146, 1147, 1148, 1149, 1150, 1151, 1152, 2000, 2001, 2002, 2003, 2010

Source: Section 21409, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=ELEC§ionNum=21409.­ (updated Aug. 21, 2025; accessed Sep. 15, 2025).

Green check means up to date. Up to date

Verified:
Sep. 15, 2025

§ 21409's source at ca​.gov