Elections Code section 21404

Congressional District 04 consists of the following:
Whole Counties in Congressional District 04
COLUSA, NAPA, SUTTER, YUBA
Partial Counties in Congressional District 04
LAKE
Partial Tracts in Lake County
0007.02--the following census blocks:
3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 3021, 3022, 3023, 3024, 3025
0011.02--the following census blocks:
1017, 1018, 1019, 1021, 1022, 1023, 1025, 1027, 1028, 1029, 1030, 1031, 1032, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1058
0012.00--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, 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
0013.01--the following census blocks:
1015, 1018
0013.02--the following census blocks:
1000, 1001, 1002, 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, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 3021, 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, 3056, 3057, 3058, 3059, 3060, 3061, 3062, 3063, 3064, 3065, 3066, 3067, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, 4009, 5000, 5001, 5002, 5003, 5004, 5005, 5006, 5007, 5008, 5009, 5010, 5011, 5012, 5013, 5014, 5015, 5016, 5017, 5018, 5019, 5020, 5021, 5022, 5023, 5024, 5025, 5026, 5027, 5028, 5029, 5030, 5031, 5032, 5033, 5034, 5035, 5036, 5037, 5038, 5039, 5040, 5041, 5042, 5043, 5044, 5045, 5046, 5047
PLACER
Whole Tracts in Placer County
0214.01, 0214.03, 0225.00, 0232.00, 0233.00, 0234.00, 0235.02, 0236.00, 0237.00, 0239.00
Partial Tracts in Placer County
0209.08--the following census blocks:
1000, 1001, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1022, 1027, 1028
0211.23--the following census blocks:
4005, 4006, 4028
0213.04--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, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 3000, 3001, 3002, 3003, 3004, 3009, 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
0213.23--the following census blocks:
2001, 2002, 2003, 2004, 2006, 2007, 2008, 2012, 2013, 2014, 2015, 4013, 4014
0213.27--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048
0213.28--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, 5000, 5001, 5002, 5003, 5004, 5005, 5006, 5007, 5008, 5009, 5010, 5011, 5012, 5013, 5014, 5015, 5016, 5017, 5019, 5020, 5022, 5023, 5024, 5025, 5026, 5027, 5028, 5029, 5030, 5031, 5032, 5033, 5036, 5037, 5038, 5039, 5044, 5045, 5046, 5047, 5048, 5049, 5051, 5052
0216.04--the following census blocks:
1011
0230.00--the following census blocks:
2013, 2014
0235.01--the following census blocks:
1002, 1003, 1004, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
0238.00--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, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2031, 2032, 2033, 2034
SACRAMENTO
Whole Tracts in Sacramento County
0072.02, 0072.06, 0072.07, 0072.08, 0072.09, 0074.17, 0074.26, 0074.27, 0074.30, 0074.31, 0074.38
Partial Tracts in Sacramento County
0071.01--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1027, 1028, 1029, 1030, 1031, 1035, 1036, 1037, 1046, 1047, 1072, 1073, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091
0071.06--the following census blocks:
4000, 4001, 4002, 4003
0071.07--the following census blocks:
2007, 2008
SONOMA
Whole Tracts in Sonoma County
1501.00, 1502.03, 1502.04, 1502.05, 1502.06, 1503.03, 1503.04, 1503.05, 1503.06, 1505.01, 1505.02, 1506.01, 1506.02, 1506.03, 1506.07, 1506.09, 1506.10, 1506.11, 1506.12, 1512.03, 1512.04, 1512.06, 1513.01, 1513.05, 1513.06, 1513.07, 1513.08, 1513.09, 1513.10, 1513.11
Partial Tracts in Sonoma County
1507.02--the following census blocks:
1003
1512.05--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2027, 2028
1514.03--the following census blocks:
2008, 2023, 2035, 2036, 2037
1514.05--the following census blocks:
1001, 1002, 1003, 1004, 2003, 2004, 2007, 2008, 2009, 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
1515.03--the following census blocks:
1001, 1002, 1003, 1004, 1005, 1006, 1009, 1010, 1011
1515.05--the following census blocks:
1000, 1001, 1003, 1004, 1005, 1008, 1009, 1010, 1011, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
1516.01--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2016, 2017, 2028
1516.02--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 3018, 3032, 3033, 3034, 3035, 3036
1526.01--the following census blocks:
2000, 2001, 2002, 2003, 2004, 2006, 2008, 2009
1526.02--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 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, 1065, 1066, 1067, 1068, 1069
1532.02--the following census blocks:
1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011, 2012, 3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3016, 3017, 3018, 3019, 3020, 3021, 3022, 3023, 3024
1533.01--the following census blocks:
2000, 2013, 2014, 2016, 2017, 2018, 2027, 2028, 2029, 2030, 2031
1533.02--the following census blocks:
2025
1535.01--the following census blocks:
1000, 1001, 1002, 1005, 1006, 1007
1541.00--the following census blocks:
4009, 4010, 4011, 4013, 4014, 4015, 4016, 4017, 4018, 4019, 4020, 4021, 4054, 4058, 4062, 4063
YOLO
Whole Tracts in Yolo County
0105.01, 0105.05, 0105.08, 0105.09, 0105.10, 0105.11, 0105.12, 0105.13, 0106.02, 0106.05, 0106.09, 0106.10, 0106.11, 0107.01, 0107.03, 0107.04, 0108.00, 0109.01, 0109.02, 0110.01, 0110.02, 0111.01, 0111.02, 0111.03, 0112.03, 0112.04, 0112.07, 0112.08, 0112.09, 0112.10, 0112.11, 0113.01, 0113.02, 0113.03, 0113.04, 0114.00, 0115.00
Partial Tracts in Yolo County
0101.02--the following census blocks:
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1020, 1021, 1022, 1023, 1028, 1032, 1061, 1062

Source: Section 21404, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=ELEC§ionNum=21404.­ (updated Aug. 21, 2025; accessed Sep. 15, 2025).

Green check means up to date. Up to date

Verified:
Sep. 15, 2025

§ 21404's source at ca​.gov