Census tract rankings · California
Most populous census tracts in California
Where the most people live inside a single tract. The Census Bureau aims for 4,000 residents per tract but splits and merges aren't always synchronized with growth. Filtered to California, ranked among all tracts in the state.
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| Rank | Tract | County | population |
|---|---|---|---|
| #1 | Tract 187 | San Diego, CA | 40,415 |
| #2 | Tract 626.14 | Orange, CA | 24,017 |
| #3 | Tract 133.17 | San Diego, CA | 18,047 |
| #4 | Tract 406.09 | Riverside, CA | 17,975 |
| #5 | Tract 524.30 | Orange, CA | 17,078 |
| #6 | Tract 19.07 | San Bernardino, CA | 16,455 |
| #7 | Tract 524.33 | Orange, CA | 16,295 |
| #8 | Tract 51.06 | San Joaquin, CA | 15,336 |
| #9 | Tract 438.23 | Riverside, CA | 14,738 |
| #10 | Tract 427.33 | Riverside, CA | 14,580 |
| #11 | Tract 27.06 | San Bernardino, CA | 14,186 |
| #12 | Tract 2523.17 | Solano, CA | 14,017 |
| #13 | Tract 863.03 | Orange, CA | 13,930 |
| #14 | Tract 524.39 | Orange, CA | 13,687 |
| #15 | Tract 2653.01 | Los Angeles, CA | 13,681 |
| #16 | Tract 19.06 | San Bernardino, CA | 13,555 |
| #17 | Tract 432.35 | Riverside, CA | 13,536 |
| #18 | Tract 59.12 | Fresno, CA | 13,429 |
| #19 | Tract 430.01 | Riverside, CA | 13,365 |
| #20 | Tract 626.10 | Orange, CA | 13,289 |
| #21 | Tract 213.28 | Placer, CA | 12,999 |
| #22 | Tract 51.19 | San Joaquin, CA | 12,380 |
| #23 | Tract 4507.51 | Alameda, CA | 12,378 |
| #24 | Tract 5130 | Santa Clara, CA | 12,324 |
| #25 | Tract 85.08 | Sacramento, CA | 12,300 |
| #26 | Tract 524.22 | Orange, CA | 12,295 |
| #27 | Tract 427.26 | Riverside, CA | 12,017 |
| #28 | Tract 42.12 | Fresno, CA | 12,016 |
| #29 | Tract 52.14 | San Joaquin, CA | 11,911 |
| #30 | Tract 5045.05 | Santa Clara, CA | 11,610 |
| #31 | Tract 110.02 | Imperial, CA | 11,566 |
| #32 | Tract 52.23 | San Joaquin, CA | 11,561 |
| #33 | Tract 213.23 | Placer, CA | 11,540 |
| #34 | Tract 432.97 | Riverside, CA | 11,415 |
| #35 | Tract 32.19 | San Joaquin, CA | 11,405 |
| #36 | Tract 9201.21 | Los Angeles, CA | 11,359 |
| #37 | Tract 755.16 | Orange, CA | 11,338 |
| #38 | Tract 10.12 | Tulare, CA | 11,302 |
| #39 | Tract 5050.06 | Santa Clara, CA | 11,179 |
| #40 | Tract 1082.02 | Los Angeles, CA | 11,154 |
| #41 | Tract 755.18 | Orange, CA | 11,153 |
| #42 | Tract 83.05 | San Diego, CA | 11,134 |
| #43 | Tract 104.02 | San Bernardino, CA | 11,067 |
| #44 | Tract 58.05 | Fresno, CA | 10,834 |
| #45 | Tract 423 | Riverside, CA | 10,814 |
| #46 | Tract 11 | Madera, CA | 10,768 |
| #47 | Tract 96.08 | Sacramento, CA | 10,617 |
| #48 | Tract 320.49 | Orange, CA | 10,469 |
| #49 | Tract 3551.15 | Contra Costa, CA | 10,460 |
| #50 | Tract 170.65 | San Diego, CA | 10,415 |
| #51 | Tract 406.16 | Riverside, CA | 10,379 |
| #52 | Tract 406.18 | Riverside, CA | 10,312 |
| #53 | Tract 23.01 | Merced, CA | 10,253 |
| #54 | Tract 23.08 | San Bernardino, CA | 10,143 |
| #55 | Tract 24.09 | Santa Barbara, CA | 10,076 |
| #56 | Tract 432.52 | Riverside, CA | 10,051 |
| #57 | Tract 9203.39 | Los Angeles, CA | 10,017 |
| #58 | Tract 2756.04 | Los Angeles, CA | 9,869 |
| #59 | Tract 4228 | Alameda, CA | 9,850 |
| #60 | Tract 422.03 | Orange, CA | 9,842 |
| #61 | Tract 403.02 | Riverside, CA | 9,812 |
| #62 | Tract 1004 | Santa Cruz, CA | 9,802 |
| #63 | Tract 3032.07 | Contra Costa, CA | 9,770 |
| #64 | Tract 213.27 | Placer, CA | 9,714 |
| #65 | Tract 4507.52 | Alameda, CA | 9,709 |
| #66 | Tract 29.04 | San Diego, CA | 9,700 |
| #67 | Tract 51.37 | San Joaquin, CA | 9,636 |
| #68 | Tract 427.31 | Riverside, CA | 9,624 |
| #69 | Tract 80.01 | San Bernardino, CA | 9,533 |
| #70 | Tract 215.02 | San Diego, CA | 9,517 |
| #71 | Tract 218.22 | Orange, CA | 9,475 |
| #72 | Tract 407.01 | Yuba, CA | 9,472 |
| #73 | Tract 50.04 | Ventura, CA | 9,464 |
| #74 | Tract 168.04 | San Diego, CA | 9,452 |
| #75 | Tract 524.21 | Orange, CA | 9,399 |
| #76 | Tract 748.03 | Orange, CA | 9,393 |
| #77 | Tract 426.26 | Riverside, CA | 9,385 |
| #78 | Tract 133.19 | San Diego, CA | 9,371 |
| #79 | Tract 52.21 | San Joaquin, CA | 9,357 |
| #80 | Tract 761.03 | Orange, CA | 9,342 |
| #81 | Tract 320.66 | Orange, CA | 9,328 |
| #82 | Tract 433.04 | Riverside, CA | 9,290 |
| #83 | Tract 17.03 | Tulare, CA | 9,290 |
| #84 | Tract 419.15 | Riverside, CA | 9,285 |
| #85 | Tract 427.39 | Riverside, CA | 9,265 |
| #86 | Tract 3031.06 | Contra Costa, CA | 9,221 |
| #87 | Tract 1106.04 | Orange, CA | 9,200 |
| #88 | Tract 46.01 | San Bernardino, CA | 9,192 |
| #89 | Tract 7029 | Los Angeles, CA | 9,176 |
| #90 | Tract 3.02 | Ventura, CA | 9,118 |
| #91 | Tract 435.17 | Riverside, CA | 9,093 |
| #92 | Tract 201.10 | San Diego, CA | 9,085 |
| #93 | Tract 213.25 | Placer, CA | 9,075 |
| #94 | Tract 200.44 | San Diego, CA | 9,056 |
| #95 | Tract 5029.02 | Santa Clara, CA | 9,050 |
| #96 | Tract 524.29 | Orange, CA | 9,027 |
| #97 | Tract 203.10 | San Diego, CA | 9,019 |
| #98 | Tract 91.27 | San Bernardino, CA | 8,989 |
| #99 | Tract 35.03 | San Joaquin, CA | 8,989 |
| #100 | Tract 112.01 | Imperial, CA | 8,978 |
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